;; Extern type definitions and constructors for the x64 `MachInst` type.
;;;; `MInst` ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Don't build `MInst` variants directly, in general. Instead, use the
;; instruction-emitting helpers defined further down.
(type MInst nodebug
(enum
;; Nops of various sizes, including zero.
(Nop (len u8))
;; =========================================
;; Integer instructions.
;; Integer arithmetic/bit-twiddling.
(AluRmiR (size OperandSize) ;; 1, 2, 4 or 8
(op AluRmiROpcode)
(src1 Gpr)
(src2 GprMemImm)
(dst WritableGpr))
;; Integer arithmetic read-modify-write on memory.
(AluRM (size OperandSize) ;; 1, 2, 4 or 8
(op AluRmiROpcode)
(src1_dst SyntheticAmode)
(src2 Gpr))
;; Integer arithmetic binary op that relies on the VEX prefix.
;; NOTE: we don't currently support emitting VEX instructions with memory
;; arguments, so `src2` is artificially constrained to be a Gpr.
(AluRmRVex (size OperandSize)
(op AluRmROpcode)
(src1 Gpr)
(src2 GprMem)
(dst WritableGpr))
;; Production of a zero value into a register of the specified size.
(AluConstOp (op AluRmiROpcode)
(size OperandSize)
(dst WritableGpr))
;; Instructions on general-purpose registers that only read src and
;; defines dst (dst is not modified). `bsr`, etc.
(UnaryRmR (size OperandSize) ;; 2, 4, or 8
(op UnaryRmROpcode)
(src GprMem)
(dst WritableGpr))
;; Same as `UnaryRmR` but with the VEX prefix for BMI1 instructions.
(UnaryRmRVex (size OperandSize)
(op UnaryRmRVexOpcode)
(src GprMem)
(dst WritableGpr))
;; Same as `UnaryRmRVex` but with an immediate
(UnaryRmRImmVex (size OperandSize)
(op UnaryRmRImmVexOpcode)
(src GprMem)
(dst WritableGpr)
(imm u8))
;; Bitwise not.
(Not (size OperandSize) ;; 1, 2, 4, or 8
(src Gpr)
(dst WritableGpr))
;; Integer negation.
(Neg (size OperandSize) ;; 1, 2, 4, or 8
(src Gpr)
(dst WritableGpr))
;; Integer quotient and remainder: (div idiv) $rax $rdx (reg addr)
;;
;; Note that this isn't used for 8-bit division which has its own `Div8`
;; instruction.
(Div (size OperandSize) ;; 2, 4, or 8
(sign DivSignedness)
(trap TrapCode)
(divisor GprMem)
(dividend_lo Gpr)
(dividend_hi Gpr)
(dst_quotient WritableGpr)
(dst_remainder WritableGpr))
;; Same as `Div`, but for 8-bits where the regalloc behavior is different
(Div8 (sign DivSignedness)
(trap TrapCode)
(divisor GprMem)
(dividend Gpr)
(dst WritableGpr))
;; Unsigned multiplication producing the high bits of the result in one
;; register and the low bits in another register.
(Mul (size OperandSize)
(signed bool)
(src1 Gpr)
(src2 GprMem)
(dst_lo WritableGpr)
(dst_hi WritableGpr))
;; Same as `Mul` but the 16-bit multiplication result is stored in `AX`.
(Mul8 (signed bool)
(src1 Gpr)
(src2 GprMem)
(dst WritableGpr))
;; The two-operand form of `imul` which produces a truncated same-size
;; result as the operands.
(IMul (size OperandSize)
(src1 Gpr)
(src2 GprMem)
(dst WritableGpr))
;; The three-operand form of `imul` where the third operand must be
;; a constant.
(IMulImm (size OperandSize)
(src1 GprMem)
(src2 i32)
(dst WritableGpr))
;; A synthetic instruction sequence used as part of the lowering of the
;; `srem` instruction which returns 0 if the divisor is -1 and
;; otherwise executes an `idiv` instruction.
;;
;; Note that this does not check for 0 as that's expected to be done
;; separately. Also note that 8-bit types don't use this and use
;; `CheckedSRemSeq8` instead.
(CheckedSRemSeq (size OperandSize)
(dividend_lo Gpr)
(dividend_hi Gpr)
(divisor Gpr)
(dst_quotient WritableGpr)
(dst_remainder WritableGpr))
;; Same as above but for 8-bit types.
(CheckedSRemSeq8 (dividend Gpr)
(divisor Gpr)
(dst WritableGpr))
;; Do a sign-extend based on the sign of the value in rax into rdx: (cwd
;; cdq cqo) or al into ah: (cbw)
(SignExtendData (size OperandSize) ;; 1, 2, 4, or 8
(src Gpr)
(dst WritableGpr))
;; Constant materialization: (imm32 imm64) reg.
;;
;; Either: movl $imm32, %reg32 or movabsq $imm64, %reg32.
(Imm (dst_size OperandSize) ;; 4 or 8
(simm64 u64)
(dst WritableGpr))
;; GPR to GPR move: mov (64 32) reg reg.
(MovRR (size OperandSize) ;; 4 or 8
(src Gpr)
(dst WritableGpr))
;; Like `MovRR` but with a physical register source (for implementing
;; CLIF instructions like `get_stack_pointer`).
(MovFromPReg (src PReg)
(dst WritableGpr))
;; Like `MovRR` but with a physical register destination (for
;; implementing CLIF instructions like `set_pinned_reg`).
(MovToPReg (src Gpr)
(dst PReg))
;; Zero-extended loads, except for 64 bits: movz (bl bq wl wq lq) addr
;; reg.
;;
;; Note that the lq variant doesn't really exist since the default
;; zero-extend rule makes it unnecessary. For that case we emit the
;; equivalent "movl AM, reg32".
(MovzxRmR (ext_mode ExtMode)
(src GprMem)
(dst WritableGpr))
;; A plain 64-bit integer load, since MovZX_RM_R can't represent that.
(Mov64MR (src SyntheticAmode)
(dst WritableGpr))
;; Loads the memory address of addr into dst.
(LoadEffectiveAddress (addr SyntheticAmode)
(dst WritableGpr)
(size OperandSize))
;; Sign-extended loads and moves: movs (bl bq wl wq lq) addr reg.
(MovsxRmR (ext_mode ExtMode)
(src GprMem)
(dst WritableGpr))
;; Immediate store.
(MovImmM (size OperandSize)
(simm32 i32)
(dst SyntheticAmode))
;; Integer stores: mov (b w l q) reg addr.
(MovRM (size OperandSize) ;; 1, 2, 4, or 8
(src Gpr)
(dst SyntheticAmode))
;; Arithmetic shifts: (shl shr sar) (b w l q) imm reg.
(ShiftR (size OperandSize) ;; 1, 2, 4, or 8
(kind ShiftKind)
(src Gpr)
;; shift count: `Imm8Gpr::Imm8(0 .. #bits-in-type - 1)` or
;; `Imm8Reg::Gpr(r)` where `r` gets move mitosis'd into `%cl`.
(num_bits Imm8Gpr)
(dst WritableGpr))
;; Arithmetic SIMD shifts.
(XmmRmiReg (opcode SseOpcode)
(src1 Xmm)
(src2 XmmMemAlignedImm)
(dst WritableXmm))
;; Integer comparisons/tests: cmp or test (b w l q) (reg addr imm) reg.
(CmpRmiR (size OperandSize) ;; 1, 2, 4, or 8
(opcode CmpOpcode)
(src1 Gpr)
(src2 GprMemImm))
;; Materializes the requested condition code in the destinaton reg.
(Setcc (cc CC)
(dst WritableGpr))
;; Swaps byte order in register
(Bswap (size OperandSize) ;; 4 or 8
(src Gpr)
(dst WritableGpr))
;; =========================================
;; Conditional moves.
;; GPR conditional move; overwrites the destination register.
(Cmove (size OperandSize)
(cc CC)
(consequent GprMem)
(alternative Gpr)
(dst WritableGpr))
;; XMM conditional move; overwrites the destination register.
(XmmCmove (ty Type)
(cc CC)
(consequent Xmm)
(alternative Xmm)
(dst WritableXmm))
;; =========================================
;; Stack manipulation.
;; pushq (reg addr imm)
(Push64 (src GprMemImm))
;; popq reg
(Pop64 (dst WritableGpr))
;; Emits a inline stack probe loop.
(StackProbeLoop (tmp WritableReg)
(frame_size u32)
(guard_size u32))
;; =========================================
;; Floating-point operations.
;; XMM (scalar or vector) binary op: (add sub and or xor mul adc? sbb?)
;; (32 64) (reg addr) reg
(XmmRmR (op SseOpcode)
(src1 Xmm)
(src2 XmmMemAligned)
(dst WritableXmm))
;; Same as `XmmRmR` except the memory operand can be unaligned
(XmmRmRUnaligned (op SseOpcode)
(src1 Xmm)
(src2 XmmMem)
(dst WritableXmm))
;; XMM (scalar or vector) blend op. The mask is used to blend between
;; src1 and src2. This differs from a use of `XmmRmR` as the mask is
;; implicitly in register xmm0; this special case exists to allow us to
;; communicate the constraint on the `mask` register to regalloc2.
(XmmRmRBlend
(op SseOpcode)
(src1 Xmm)
(src2 XmmMemAligned)
(mask Xmm)
(dst WritableXmm))
;; XMM (scalar or vector) binary op that relies on the VEX prefix and
;; has two inputs.
(XmmRmiRVex (op AvxOpcode)
(src1 Xmm)
(src2 XmmMemImm)
(dst WritableXmm))
;; XMM (scalar or vector) ternary op that relies on the VEX prefix and
;; has two dynamic inputs plus one immediate input.
(XmmRmRImmVex (op AvxOpcode)
(src1 Xmm)
(src2 XmmMem)
(dst WritableXmm)
(imm u8))
;; XMM instruction for `vpinsr{b,w,d,q}` which is separate from
;; `XmmRmRImmVex` because `src2` is a gpr, not xmm register.
(XmmVexPinsr (op AvxOpcode)
(src1 Xmm)
(src2 GprMem)
(dst WritableXmm)
(imm u8))
;; XMM (scalar or vector) ternary op that relies on the VEX prefix and
;; has three dynamic inputs.
(XmmRmRVex3 (op AvxOpcode)
(src1 Xmm)
(src2 Xmm)
(src3 XmmMem)
(dst WritableXmm))
;; XMM blend operation using the VEX encoding.
(XmmRmRBlendVex (op AvxOpcode)
(src1 Xmm)
(src2 XmmMem)
(mask Xmm)
(dst WritableXmm))
;; XMM unary op using a VEX encoding (aka AVX).
(XmmUnaryRmRVex (op AvxOpcode)
(src XmmMem)
(dst WritableXmm))
;; XMM unary op using a VEX encoding (aka AVX) with an immediate.
(XmmUnaryRmRImmVex (op AvxOpcode)
(src XmmMem)
(dst WritableXmm)
(imm u8))
;; XMM (scalar or vector) unary op (from xmm to reg/mem) using the
;; VEX prefix
(XmmMovRMVex (op AvxOpcode)
(src Xmm)
(dst SyntheticAmode))
(XmmMovRMImmVex (op AvxOpcode)
(src Xmm)
(dst SyntheticAmode)
(imm u8))
;; XMM (scalar) unary op (from xmm to integer reg): vpextr{w,b,d,q}
(XmmToGprImmVex (op AvxOpcode)
(src Xmm)
(dst WritableGpr)
(imm u8))
;; XMM (scalar) unary op (from integer to float reg): vmovd, vmovq,
;; vcvtsi2s{s,d}
(GprToXmmVex (op AvxOpcode)
(src GprMem)
(dst WritableXmm)
(src_size OperandSize))
;; XMM (scalar) unary op (from xmm to integer reg): vmovd, vmovq,
;; vcvtts{s,d}2si
(XmmToGprVex (op AvxOpcode)
(src Xmm)
(dst WritableGpr)
(dst_size OperandSize))
;; Float comparisons/tests: cmp (b w l q) (reg addr imm) reg.
(XmmCmpRmRVex (op AvxOpcode)
(src1 Xmm)
(src2 XmmMem))
;; XMM (scalar or vector) binary op that relies on the EVEX
;; prefix. Takes two inputs.
(XmmRmREvex (op Avx512Opcode)
(src1 Xmm)
(src2 XmmMem)
(dst WritableXmm))
;; Same as `XmmRmREvex` but for unary operations.
(XmmUnaryRmRImmEvex (op Avx512Opcode)
(src XmmMem)
(dst WritableXmm)
(imm u8))
;; XMM (scalar or vector) binary op that relies on the EVEX
;; prefix. Takes three inputs.
(XmmRmREvex3 (op Avx512Opcode)
(src1 Xmm)
(src2 Xmm)
(src3 XmmMem)
(dst WritableXmm))
;; XMM (scalar or vector) unary op: mov between XMM registers (32 64)
;; (reg addr) reg, sqrt, etc.
;;
;; This differs from XMM_RM_R in that the dst register of XmmUnaryRmR is
;; not used in the computation of the instruction dst value and so does
;; not have to be a previously valid value. This is characteristic of mov
;; instructions.
(XmmUnaryRmR (op SseOpcode)
(src XmmMemAligned)
(dst WritableXmm))
;; Same as `XmmUnaryRmR` but used for opcodes where the memory address
;; can be unaligned.
(XmmUnaryRmRUnaligned (op SseOpcode)
(src XmmMem)
(dst WritableXmm))
;; XMM (scalar or vector) unary op with immediate: roundss, roundsd, etc.
;;
;; This differs from XMM_RM_R_IMM in that the dst register of
;; XmmUnaryRmRImm is not used in the computation of the instruction dst
;; value and so does not have to be a previously valid value.
(XmmUnaryRmRImm (op SseOpcode)
(src XmmMemAligned)
(imm u8)
(dst WritableXmm))
;; XMM (scalar or vector) unary op that relies on the EVEX prefix.
(XmmUnaryRmREvex (op Avx512Opcode)
(src XmmMem)
(dst WritableXmm))
;; XMM (scalar or vector) unary op (from xmm to reg/mem): stores, movd,
;; movq
(XmmMovRM (op SseOpcode)
(src Xmm)
(dst SyntheticAmode))
(XmmMovRMImm (op SseOpcode)
(src Xmm)
(dst SyntheticAmode)
(imm u8))
;; XMM (scalar) unary op (from xmm to integer reg): movd, movq,
;; cvtts{s,d}2si
(XmmToGpr (op SseOpcode)
(src Xmm)
(dst WritableGpr)
(dst_size OperandSize))
;; XMM (scalar) unary op (from xmm to integer reg): pextr{w,b,d,q}
(XmmToGprImm (op SseOpcode)
(src Xmm)
(dst WritableGpr)
(imm u8))
;; XMM (scalar) unary op (from integer to float reg): movd, movq,
;; cvtsi2s{s,d}
(GprToXmm (op SseOpcode)
(src GprMem)
(dst WritableXmm)
(src_size OperandSize))
;; Conversion from signed integers to floats, the `{v,}`cvtsi2s{s,d}`
;; instructions.
;;
;; Note that this is special in that `src1` is an xmm/float register
;; while `src2` is a general purpose register as this is converting an
;; integer in a gpr to an equivalent float in an xmm reg.
(CvtIntToFloat (op SseOpcode)
(src1 Xmm)
(src2 GprMem)
(dst WritableXmm)
(src2_size OperandSize))
(CvtIntToFloatVex (op AvxOpcode)
(src1 Xmm)
(src2 GprMem)
(dst WritableXmm)
(src2_size OperandSize))
;; Converts an unsigned int64 to a float32/float64.
(CvtUint64ToFloatSeq (dst_size OperandSize) ;; 4 or 8
(src Gpr)
(dst WritableXmm)
(tmp_gpr1 WritableGpr)
(tmp_gpr2 WritableGpr))
;; Converts a scalar xmm to a signed int32/int64.
(CvtFloatToSintSeq (dst_size OperandSize)
(src_size OperandSize)
(is_saturating bool)
(src Xmm)
(dst WritableGpr)
(tmp_gpr WritableGpr)
(tmp_xmm WritableXmm))
;; Converts a scalar xmm to an unsigned int32/int64.
(CvtFloatToUintSeq (dst_size OperandSize)
(src_size OperandSize)
(is_saturating bool)
(src Xmm)
(dst WritableGpr)
(tmp_gpr WritableGpr)
(tmp_xmm WritableXmm)
(tmp_xmm2 WritableXmm))
;; A sequence to compute min/max with the proper NaN semantics for xmm
;; registers.
(XmmMinMaxSeq (size OperandSize)
(is_min bool)
(lhs Xmm)
(rhs Xmm)
(dst WritableXmm))
;; Float comparisons/tests
;;
;; Compares `src1` against `src2` with `op`. Note that if you're testing
;; `a < b` then `src1 == a` and `src2 == b`.
(XmmCmpRmR (op SseOpcode)
(src1 Xmm)
(src2 XmmMemAligned))
;; A binary XMM instruction with an 8-bit immediate: e.g. cmp (ps pd) imm
;; (reg addr) reg
;;
;; Note: this has to use `Reg*`, not `Xmm*`, operands because it is used
;; in various lane insertion and extraction instructions that move
;; between XMMs and GPRs.
(XmmRmRImm (op SseOpcode)
(src1 Reg)
(src2 RegMem)
(dst WritableReg)
(imm u8)
(size OperandSize))
;; =========================================
;; Control flow instructions.
;; Direct call: call simm32.
(CallKnown (info BoxCallInfo))
;; Indirect call: callq (reg mem)
(CallUnknown (info BoxCallIndInfo))
;; Tail call to a direct destination.
(ReturnCallKnown (info BoxReturnCallInfo))
;; Tail call to an indirect destination.
(ReturnCallUnknown (info BoxReturnCallIndInfo))
;; A pseudo-instruction that captures register arguments in vregs.
(Args
(args VecArgPair))
;; A pseudo-instruction that moves vregs to return registers.
(Rets
(rets VecRetPair))
;; Return.
(Ret (stack_bytes_to_pop u32))
;; Stack switching
(StackSwitchBasic (store_context_ptr Gpr)
(load_context_ptr Gpr)
(in_payload0 Gpr)
(out_payload0 WritableGpr))
;; Jump to a known target: jmp simm32.
(JmpKnown (dst MachLabel))
;; One-way conditional branch: jcond cond target.
;;
;; This instruction is useful when we have conditional jumps depending on
;; more than two conditions, see for instance the lowering of Brif
;; with Fcmp inputs.
;;
;; A note of caution: in contexts where the branch target is another
;; block, this has to be the same successor as the one specified in the
;; terminator branch of the current block. Otherwise, this might confuse
;; register allocation by creating new invisible edges.
(JmpIf (cc CC)
(taken MachLabel))
;; Two-way conditional branch: jcond cond target target.
;;
;; Emitted as a compound sequence; the MachBuffer will shrink it as
;; appropriate.
(JmpCond (cc CC)
(taken MachLabel)
(not_taken MachLabel))
;; Jump-table sequence, as one compound instruction (see note in lower.rs
;; for rationale).
;;
;; The generated code sequence is described in the emit's function match
;; arm for this instruction.
;;
;; See comment on jmp_table_seq below about the temporaries signedness.
(JmpTableSeq (idx Reg)
(tmp1 WritableReg)
(tmp2 WritableReg)
(default_target MachLabel)
(targets BoxVecMachLabel))
;; Indirect jump: jmpq (reg mem).
(JmpUnknown (target RegMem))
;; Traps if the condition code is set.
(TrapIf (cc CC)
(trap_code TrapCode))
;; Traps if both of the condition codes are set.
(TrapIfAnd (cc1 CC)
(cc2 CC)
(trap_code TrapCode))
;; Traps if either of the condition codes are set.
(TrapIfOr (cc1 CC)
(cc2 CC)
(trap_code TrapCode))
;; A debug trap.
(Hlt)
;; An instruction that will always trigger the illegal instruction
;; exception.
(Ud2 (trap_code TrapCode))
;; Loads an external symbol in a register, with a relocation:
;;
;; movq $name@GOTPCREL(%rip), dst if PIC is enabled, or
;; lea $name($rip), dst if distance is near, or
;; movabsq $name, dst otherwise.
(LoadExtName (dst WritableReg)
(name BoxExternalName)
(offset i64)
(distance RelocDistance))
;; =========================================
;; Instructions pertaining to atomic memory accesses.
;; A standard (native) `lock cmpxchg src, (amode)`, with register
;; conventions:
;;
;; `mem` (read) address
;; `replacement` (read) replacement value
;; %rax (modified) in: expected value, out: value that was actually at `dst`
;; %rflags is written. Do not assume anything about it after the instruction.
;;
;; The instruction "succeeded" iff the lowest `ty` bits of %rax
;; afterwards are the same as they were before.
(LockCmpxchg (ty Type) ;; I8, I16, I32, or I64
(replacement Reg)
(expected Reg)
(mem SyntheticAmode)
(dst_old WritableReg))
;; A synthetic instruction, based on a loop around a native `lock
;; cmpxchg` instruction.
;;
;; This atomically modifies a value in memory and returns the old value.
;; The sequence consists of an initial "normal" load from `dst`, followed
;; by a loop which computes the new value and tries to compare-and-swap
;; ("CAS") it into `dst`, using the native instruction `lock
;; cmpxchg{b,w,l,q}`. The loop iterates until the CAS is successful. If
;; there is no contention, there will be only one pass through the loop
;; body. The sequence does *not* perform any explicit memory fence
;; instructions (`mfence`/`sfence`/`lfence`).
;;
;; Note that the transaction is atomic in the sense that, as observed by
;; some other thread, `dst` either has the initial or final value, but no
;; other. It isn't atomic in the sense of guaranteeing that no other
;; thread writes to `dst` in between the initial load and the CAS -- but
;; that would cause the CAS to fail unless the other thread's last write
;; before the CAS wrote the same value that was already there. In other
;; words, this implementation suffers (unavoidably) from the A-B-A
;; problem.
;;
;; This instruction sequence has fixed register uses as follows:
;; - %rax (written) the old value at `mem`
;; - %rflags is written. Do not assume anything about it after the
;; instruction.
(AtomicRmwSeq (ty Type) ;; I8, I16, I32, or I64
(op MachAtomicRmwOp)
(mem SyntheticAmode)
(operand Reg)
(temp WritableReg)
(dst_old WritableReg))
;; A memory fence (mfence, lfence or sfence).
(Fence (kind FenceKind))
;; =========================================
;; Meta-instructions generating no code.
;; Provides a way to tell the register allocator that the upcoming
;; sequence of instructions will overwrite `dst` so it should be
;; considered as a `def`; use this with care.
;;
;; This is useful when we have a sequence of instructions whose register
;; usages are nominally `mod`s, but such that the combination of
;; operations creates a result that is independent of the initial
;; register value. It's thus semantically a `def`, not a `mod`, when all
;; the instructions are taken together, so we want to ensure the register
;; is defined (its live-range starts) prior to the sequence to keep
;; analyses happy.
;;
;; One alternative would be a compound instruction that somehow
;; encapsulates the others and reports its own `def`s/`use`s/`mod`s; this
;; adds complexity (the instruction list is no longer flat) and requires
;; knowledge about semantics and initial-value independence anyway.
(XmmUninitializedValue (dst WritableXmm))
;; A call to the `ElfTlsGetAddr` libcall. Returns address of TLS symbol
;; `dst`, which is constrained to `rax`.
(ElfTlsGetAddr (symbol ExternalName)
(dst WritableGpr))
;; A Mach-O TLS symbol access. Returns address of the TLS symbol in
;; `dst`, which is constrained to `rax`.
(MachOTlsGetAddr (symbol ExternalName)
(dst WritableGpr))
;; A Coff TLS symbol access. Returns address of the TLS symbol in
;; `dst`, which is constrained to `rax`.
(CoffTlsGetAddr (symbol ExternalName)
(dst WritableGpr)
(tmp WritableGpr))
;; An unwind pseudoinstruction describing the state of the machine at
;; this program point.
(Unwind (inst UnwindInst))
;; A pseudoinstruction that just keeps a value alive.
(DummyUse (reg Reg))))
(type OperandSize extern
(enum Size8
Size16
Size32
Size64))
(type DivSignedness
(enum Signed
Unsigned))
(type FenceKind extern
(enum MFence
LFence
SFence))
(type BoxCallInfo extern (enum))
(type BoxCallIndInfo extern (enum))
(type BoxReturnCallInfo extern (enum))
(type BoxReturnCallIndInfo extern (enum))
;; Get the `OperandSize` for a given `Type`, rounding smaller types up to 32 bits.
(decl operand_size_of_type_32_64 (Type) OperandSize)
(extern constructor operand_size_of_type_32_64 operand_size_of_type_32_64)
;; Get the true `OperandSize` for a given `Type`, with no rounding.
(decl raw_operand_size_of_type (Type) OperandSize)
(extern constructor raw_operand_size_of_type raw_operand_size_of_type)
;; Get the bit width of an `OperandSize`.
(decl operand_size_bits (OperandSize) u16)
(rule (operand_size_bits (OperandSize.Size8)) 8)
(rule (operand_size_bits (OperandSize.Size16)) 16)
(rule (operand_size_bits (OperandSize.Size32)) 32)
(rule (operand_size_bits (OperandSize.Size64)) 64)
(type AluRmiROpcode extern
(enum Add
Adc
Sub
Sbb
And
Or
Xor))
(type AluRmROpcode
(enum Andn
Sarx
Shrx
Shlx
Bzhi))
(type UnaryRmROpcode extern
(enum Bsr
Bsf
Lzcnt
Tzcnt
Popcnt))
(type UnaryRmRVexOpcode
(enum Blsi
Blsmsk
Blsr))
(type UnaryRmRImmVexOpcode
(enum Rorx))
(type SseOpcode extern
(enum Addps
Addpd
Addss
Addsd
Andps
Andpd
Andnps
Andnpd
Blendvpd
Blendvps
Comiss
Comisd
Cmpps
Cmppd
Cmpss
Cmpsd
Cvtdq2ps
Cvtdq2pd
Cvtpd2ps
Cvtps2pd
Cvtsd2ss
Cvtsd2si
Cvtsi2ss
Cvtsi2sd
Cvtss2si
Cvtss2sd
Cvttpd2dq
Cvttps2dq
Cvttss2si
Cvttsd2si
Divps
Divpd
Divss
Divsd
Insertps
Maxps
Maxpd
Maxss
Maxsd
Minps
Minpd
Minss
Minsd
Movaps
Movapd
Movd
Movdqa
Movdqu
Movlhps
Movmskps
Movmskpd
Movq
Movss
Movsd
Movups
Movupd
Mulps
Mulpd
Mulss
Mulsd
Orps
Orpd
Pabsb
Pabsw
Pabsd
Packssdw
Packsswb
Packusdw
Packuswb
Paddb
Paddd
Paddq
Paddw
Paddsb
Paddsw
Paddusb
Paddusw
Palignr
Pand
Pandn
Pavgb
Pavgw
Pblendvb
Pcmpeqb
Pcmpeqw
Pcmpeqd
Pcmpeqq
Pcmpgtb
Pcmpgtw
Pcmpgtd
Pcmpgtq
Pextrb
Pextrw
Pextrd
Pextrq
Pinsrb
Pinsrw
Pinsrd
Pmaddubsw
Pmaddwd
Pmaxsb
Pmaxsw
Pmaxsd
Pmaxub
Pmaxuw
Pmaxud
Pminsb
Pminsw
Pminsd
Pminub
Pminuw
Pminud
Pmovmskb
Pmovsxbd
Pmovsxbw
Pmovsxbq
Pmovsxwd
Pmovsxwq
Pmovsxdq
Pmovzxbd
Pmovzxbw
Pmovzxbq
Pmovzxwd
Pmovzxwq
Pmovzxdq
Pmuldq
Pmulhw
Pmulhuw
Pmulhrsw
Pmulld
Pmullw
Pmuludq
Por
Pshufb
Pshufd
Psllw
Pslld
Psllq
Psraw
Psrad
Psrlw
Psrld
Psrlq
Psubb
Psubd
Psubq
Psubw
Psubsb
Psubsw
Psubusb
Psubusw
Ptest
Punpckhbw
Punpckhwd
Punpcklbw
Punpcklwd
Pxor
Rcpss
Roundps
Roundpd
Roundss
Roundsd
Rsqrtss
Shufps
Sqrtps
Sqrtpd
Sqrtss
Sqrtsd
Subps
Subpd
Subss
Subsd
Ucomiss
Ucomisd
Unpcklps
Unpcklpd
Unpckhps
Xorps
Xorpd
Phaddw
Phaddd
Punpckhdq
Punpckldq
Punpckhqdq
Punpcklqdq
Pshuflw
Pshufhw
Pblendw
Movddup
))
(type CmpOpcode extern
(enum Cmp
Test))
(type RegMemImm extern
(enum
(Reg (reg Reg))
(Mem (addr SyntheticAmode))
(Imm (simm32 u32))))
;; Put the given clif value into a `RegMemImm` operand.
;;
;; Asserts that the value fits into a single register, and doesn't require
;; multiple registers for its representation (like `i128` for example).
;;
;; As a side effect, this marks the value as used.
(decl put_in_reg_mem_imm (Value) RegMemImm)
(extern constructor put_in_reg_mem_imm put_in_reg_mem_imm)
(type RegMem extern
(enum
(Reg (reg Reg))
(Mem (addr SyntheticAmode))))
;; Convert a RegMem to a RegMemImm.
(decl reg_mem_to_reg_mem_imm (RegMem) RegMemImm)
(rule (reg_mem_to_reg_mem_imm (RegMem.Reg reg))
(RegMemImm.Reg reg))
(rule (reg_mem_to_reg_mem_imm (RegMem.Mem addr))
(RegMemImm.Mem addr))
;; Put the given clif value into a `RegMem` operand.
;;
;; Asserts that the value fits into a single register, and doesn't require
;; multiple registers for its representation (like `i128` for example).
;;
;; As a side effect, this marks the value as used.
(decl put_in_reg_mem (Value) RegMem)
(extern constructor put_in_reg_mem put_in_reg_mem)
;; Addressing modes.
(type SyntheticAmode extern (enum))
(decl synthetic_amode_to_reg_mem (SyntheticAmode) RegMem)
(extern constructor synthetic_amode_to_reg_mem synthetic_amode_to_reg_mem)
(decl amode_to_synthetic_amode (Amode) SyntheticAmode)
(extern constructor amode_to_synthetic_amode amode_to_synthetic_amode)
;; An `Amode` represents a possible addressing mode that can be used
;; in instructions. These denote a 64-bit value only.
(type Amode (enum
;; Immediate sign-extended and a register
(ImmReg (simm32 i32)
(base Reg)
(flags MemFlags))
;; Sign-extend-32-to-64(simm32) + base + (index << shift)
(ImmRegRegShift (simm32 i32)
(base Gpr)
(index Gpr)
(shift u8)
(flags MemFlags))
;; Sign-extend-32-to-64(immediate) + RIP (instruction
;; pointer). The appropriate relocation is emitted so
;; that the resulting immediate makes this Amode refer to
;; the given MachLabel.
(RipRelative (target MachLabel))))
;; A helper to both check that the `Imm64` and `Offset32` values sum to less
;; than 32-bits AND return this summed `u32` value. Also, the `Imm64` will be
;; zero-extended from `Type` up to 64 bits. This is useful for `to_amode`.
(decl pure partial sum_extend_fits_in_32_bits (Type Imm64 Offset32) u32)
(extern constructor sum_extend_fits_in_32_bits sum_extend_fits_in_32_bits)
;;;; Amode lowering ;;;;
;; Converts a `Value` and a static offset into an `Amode` for x64, attempting
;; to be as fancy as possible with offsets/registers/shifts/etc to make maximal
;; use of the x64 addressing modes.
;;
;; This is a bit subtle unfortunately due to a few constraints. This function
;; was originally written recursively but that can lead to stack overflow
;; for certain inputs due to the recursion being defined by user-controlled
;; input. This means that nowadays this function is not recursive and has a
;; specific structure to handle that.
;;
;; Additionally currently in CLIF all loads/stores have an `Offset32` immediate
;; to go with them, but the wasm lowering to CLIF doesn't use this meaning that
;; it's frequently 0. Additionally mid-end optimizations do not fold `iconst`
;; values into this `Offset32`, meaning that it's left up to backends to hunt
;; for constants for good codegen. That means that one important aspect of this
;; function is that it searches for constants to fold into the `Offset32` to
;; avoid unnecessary instructions.
;;
;; Note, though, that the "optimal addressing modes" are only guaranteed to be
;; generated if egraph-based optimizations have run. For example this will only
;; attempt to find one constant as opposed to many, and that'll only happen
;; with constant folding from optimizations.
;;
;; Finally there's two primary entry points for this function. One is this
;; function here, `to_amode,` and another is `to_amode_add`. The latter is used
;; by the lowering of `iadd` in the x64 backend to use the `lea` instruction
;; where the input is two `Value` operands instead of just one. Most of the
;; logic here is then deferred through `to_amode_add`.
;;
;; In the future if mid-end optimizations fold constants into `Offset32` then
;; this in theory can "simply" delegate to the `amode_imm_reg` helper, and
;; below can delegate to `amode_imm_reg_reg_shift`, or something like that.
(decl to_amode (MemFlags Value Offset32) Amode)
(rule 0 (to_amode flags base offset)
(amode_imm_reg flags base offset))
(rule 1 (to_amode flags (iadd x y) offset)
(to_amode_add flags x y offset))
;; Same as `to_amode`, except that the base address is computed via the addition
;; of the two `Value` arguments provided.
;;
;; The primary purpose of this is to hunt for constants within the two `Value`
;; operands provided. Failing that this will defer to `amode_imm_reg` or
;; `amode_imm_reg_reg_shift` which is the final step in amode lowering and
;; performs final pattern matches related to shifts to see if that can be
;; peeled out into the amode.
;;
;; In other words this function's job is to find constants and then defer to
;; `amode_imm_reg*`.
(decl to_amode_add (MemFlags Value Value Offset32) Amode)
(rule 0 (to_amode_add flags x y offset)
(amode_imm_reg_reg_shift flags x y offset))
(rule 1 (to_amode_add flags x (i32_from_iconst c) offset)
(if-let sum (s32_add_fallible offset c))
(amode_imm_reg flags x sum))
(rule 2 (to_amode_add flags (i32_from_iconst c) x offset)
(if-let sum (s32_add_fallible offset c))
(amode_imm_reg flags x sum))
(rule 3 (to_amode_add flags (iadd x (i32_from_iconst c)) y offset)
(if-let sum (s32_add_fallible offset c))
(amode_imm_reg_reg_shift flags x y sum))
(rule 4 (to_amode_add flags (iadd (i32_from_iconst c) x) y offset)
(if-let sum (s32_add_fallible offset c))
(amode_imm_reg_reg_shift flags x y sum))
(rule 5 (to_amode_add flags x (iadd y (i32_from_iconst c)) offset)
(if-let sum (s32_add_fallible offset c))
(amode_imm_reg_reg_shift flags x y sum))
(rule 6 (to_amode_add flags x (iadd (i32_from_iconst c) y) offset)
(if-let sum (s32_add_fallible offset c))
(amode_imm_reg_reg_shift flags x y sum))
;; Final cases of amode lowering. Does not hunt for constants and only attempts
;; to pattern match add-of-shifts to generate fancier `ImmRegRegShift` modes,
;; otherwise falls back on `ImmReg`.
(decl amode_imm_reg (MemFlags Value Offset32) Amode)
(rule 0 (amode_imm_reg flags base offset)
(Amode.ImmReg offset base flags))
(rule 1 (amode_imm_reg flags (iadd x y) offset)
(amode_imm_reg_reg_shift flags x y offset))
(decl amode_imm_reg_reg_shift (MemFlags Value Value Offset32) Amode)
(rule 0 (amode_imm_reg_reg_shift flags x y offset)
(Amode.ImmRegRegShift offset x y 0 flags)) ;; 0 == y<<0 == "no shift"
(rule 1 (amode_imm_reg_reg_shift flags x (ishl y (iconst (uimm8 shift))) offset)
(if (u32_lteq (u8_as_u32 shift) 3))
(Amode.ImmRegRegShift offset x y shift flags))
(rule 2 (amode_imm_reg_reg_shift flags (ishl y (iconst (uimm8 shift))) x offset)
(if (u32_lteq (u8_as_u32 shift) 3))
(Amode.ImmRegRegShift offset x y shift flags))
;; Offsetting an Amode. Used when we need to do consecutive
;; loads/stores to adjacent addresses.
(decl amode_offset (Amode i32) Amode)
(extern constructor amode_offset amode_offset)
;; Return a zero offset as an `Offset32`.
(decl zero_offset () Offset32)
(extern constructor zero_offset zero_offset)
;; Shift kinds.
(type ShiftKind extern
(enum ShiftLeft
ShiftRightLogical
ShiftRightArithmetic
RotateLeft
RotateRight))
(type Imm8Reg extern
(enum (Imm8 (imm u8))
(Reg (reg Reg))))
;; Put the given clif value into a `Imm8Reg` operand, masked to the bit width of
;; the given type.
;;
;; Asserts that the value fits into a single register, and doesn't require
;; multiple registers for its representation (like `i128` for example).
;;
;; As a side effect, this marks the value as used.
;;
;; This is used when lowering various shifts and rotates.
(decl put_masked_in_imm8_gpr (Value Type) Imm8Gpr)
(rule 2 (put_masked_in_imm8_gpr (u64_from_iconst amt) ty)
(const_to_type_masked_imm8 amt ty))
(rule 1 (put_masked_in_imm8_gpr amt (fits_in_16 ty))
(x64_and $I64 (value_regs_get_gpr amt 0) (RegMemImm.Imm (shift_mask ty))))
(rule (put_masked_in_imm8_gpr amt ty)
(value_regs_get_gpr amt 0))
;; Condition codes
(type CC extern
(enum O
NO
B
NB
Z
NZ
BE
NBE
S
NS
L
NL
LE
NLE
P
NP))
(decl intcc_to_cc (IntCC) CC)
(extern constructor intcc_to_cc intcc_to_cc)
(decl cc_invert (CC) CC)
(extern constructor cc_invert cc_invert)
;; Fails if the argument is not either CC.NZ or CC.Z.
(decl cc_nz_or_z (CC) CC)
(extern extractor cc_nz_or_z cc_nz_or_z)
(type AvxOpcode
(enum Vfmadd213ss
Vfmadd213sd
Vfmadd213ps
Vfmadd213pd
Vfmadd132ss
Vfmadd132sd
Vfmadd132ps
Vfmadd132pd
Vfnmadd213ss
Vfnmadd213sd
Vfnmadd213ps
Vfnmadd213pd
Vfnmadd132ss
Vfnmadd132sd
Vfnmadd132ps
Vfnmadd132pd
Vfmsub213ss
Vfmsub213sd
Vfmsub213ps
Vfmsub213pd
Vfmsub132ss
Vfmsub132sd
Vfmsub132ps
Vfmsub132pd
Vfnmsub213ss
Vfnmsub213sd
Vfnmsub213ps
Vfnmsub213pd
Vfnmsub132ss
Vfnmsub132sd
Vfnmsub132ps
Vfnmsub132pd
Vcmpps
Vcmppd
Vpsrlw
Vpsrld
Vpsrlq
Vpaddb
Vpaddw
Vpaddd
Vpaddq
Vpaddsb
Vpaddsw
Vpaddusb
Vpaddusw
Vpsubb
Vpsubw
Vpsubd
Vpsubq
Vpsubsb
Vpsubsw
Vpsubusb
Vpsubusw
Vpavgb
Vpavgw
Vpand
Vandps
Vandpd
Vpor
Vorps
Vorpd
Vpxor
Vxorps
Vxorpd
Vpmullw
Vpmulld
Vpmulhw
Vpmulhd
Vpmulhrsw
Vpmulhuw
Vpmuldq
Vpmuludq
Vpunpckhwd
Vpunpcklwd
Vunpcklps
Vunpcklpd
Vunpckhps
Vandnps
Vandnpd
Vpandn
Vaddps
Vaddpd
Vsubps
Vsubpd
Vmulps
Vmulpd
Vdivps
Vdivpd
Vpcmpeqb
Vpcmpeqw
Vpcmpeqd
Vpcmpeqq
Vpcmpgtb
Vpcmpgtw
Vpcmpgtd
Vpcmpgtq
Vminps
Vminpd
Vmaxps
Vmaxpd
Vblendvpd
Vblendvps
Vpblendvb
Vmovlhps
Vpmaxsb
Vpmaxsw
Vpmaxsd
Vpminsb
Vpminsw
Vpminsd
Vpmaxub
Vpmaxuw
Vpmaxud
Vpminub
Vpminuw
Vpminud
Vpunpcklbw
Vpunpckhbw
Vpacksswb
Vpackssdw
Vpackuswb
Vpackusdw
Vpalignr
Vpinsrb
Vpinsrw
Vpinsrd
Vpinsrq
Vpmaddwd
Vpmaddubsw
Vinsertps
Vpshufb
Vshufps
Vpsllw
Vpslld
Vpsllq
Vpsraw
Vpsrad
Vpmovsxbw
Vpmovzxbw
Vpmovsxwd
Vpmovzxwd
Vpmovsxdq
Vpmovzxdq
Vaddss
Vaddsd
Vmulss
Vmulsd
Vsubss
Vsubsd
Vdivss
Vdivsd
Vpabsb
Vpabsw
Vpabsd
Vminss
Vminsd
Vmaxss
Vmaxsd
Vsqrtps
Vsqrtpd
Vroundps
Vroundpd
Vcvtdq2pd
Vcvtdq2ps
Vcvtpd2ps
Vcvtps2pd
Vcvttpd2dq
Vcvttps2dq
Vphaddw
Vphaddd
Vpunpckhdq
Vpunpckldq
Vpunpckhqdq
Vpunpcklqdq
Vpshuflw
Vpshufhw
Vpshufd
Vmovss
Vmovsd
Vmovups
Vmovupd
Vmovdqu
Vpextrb
Vpextrw
Vpextrd
Vpextrq
Vpblendw
Vmovddup
Vpbroadcastb
Vpbroadcastw
Vpbroadcastd
Vbroadcastss
Vmovd
Vmovq
Vmovmskps
Vmovmskpd
Vpmovmskb
Vcvtsi2ss
Vcvtsi2sd
Vcvtss2sd
Vcvtsd2ss
Vsqrtss
Vsqrtsd
Vroundss
Vroundsd
Vucomiss
Vucomisd
Vptest
))
(type Avx512Opcode
(enum Vcvtudq2ps
Vpabsq
Vpermi2b
Vpmullq
Vpopcntb
Vpsraq
VpsraqImm))
(type FcmpImm extern
(enum Equal
LessThan
LessThanOrEqual
Unordered
NotEqual
UnorderedOrGreaterThanOrEqual
UnorderedOrGreaterThan
Ordered))
(decl encode_fcmp_imm (FcmpImm) u8)
(extern constructor encode_fcmp_imm encode_fcmp_imm)
(type RoundImm extern
(enum RoundNearest
RoundDown
RoundUp
RoundZero))
(decl encode_round_imm (RoundImm) u8)
(extern constructor encode_round_imm encode_round_imm)
;;;; Newtypes for Different Register Classes ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(type Gpr (primitive Gpr))
(type WritableGpr (primitive WritableGpr))
(type OptionWritableGpr (primitive OptionWritableGpr))
(type GprMem extern (enum))
(type GprMemImm extern (enum))
(type Imm8Gpr extern (enum))
(type Xmm (primitive Xmm))
(type WritableXmm (primitive WritableXmm))
(type OptionWritableXmm (primitive OptionWritableXmm))
(type XmmMem extern (enum))
(type XmmMemAligned extern (enum))
(type XmmMemImm extern (enum))
(type XmmMemAlignedImm extern (enum))
;; Convert an `Imm8Reg` into an `Imm8Gpr`.
(decl imm8_reg_to_imm8_gpr (Imm8Reg) Imm8Gpr)
(extern constructor imm8_reg_to_imm8_gpr imm8_reg_to_imm8_gpr)
;; Convert an `Imm8Gpr` into a `Gpr`.
(decl gpr_from_imm8_gpr (Gpr) Imm8Gpr)
(extern extractor gpr_from_imm8_gpr gpr_from_imm8_gpr)
;; Convert an `Imm8Gpr` into an `Imm8`.
(decl imm8_from_imm8_gpr (u8) Imm8Gpr)
(extern extractor imm8_from_imm8_gpr imm8_from_imm8_gpr)
;; Convert a `WritableGpr` to a `WritableReg`.
(decl writable_gpr_to_reg (WritableGpr) WritableReg)
(extern constructor writable_gpr_to_reg writable_gpr_to_reg)
;; Convert a `WritableXmm` to a `WritableReg`.
(decl writable_xmm_to_reg (WritableXmm) WritableReg)
(extern constructor writable_xmm_to_reg writable_xmm_to_reg)
;; Convert a `WritableReg` to a `WritableXmm`.
(decl writable_reg_to_xmm (WritableReg) WritableXmm)
(extern constructor writable_reg_to_xmm writable_reg_to_xmm)
;; Convert a `WritableXmm` to an `Xmm`.
(decl writable_xmm_to_xmm (WritableXmm) Xmm)
(extern constructor writable_xmm_to_xmm writable_xmm_to_xmm)
;; Convert a `WritableGpr` to an `Gpr`.
(decl writable_gpr_to_gpr (WritableGpr) Gpr)
(extern constructor writable_gpr_to_gpr writable_gpr_to_gpr)
;; Convert an `Gpr` to a `Reg`.
(decl gpr_to_reg (Gpr) Reg)
(extern constructor gpr_to_reg gpr_to_reg)
;; Convert an `Gpr` to a `GprMem`.
(decl gpr_to_gpr_mem (Gpr) GprMem)
(extern constructor gpr_to_gpr_mem gpr_to_gpr_mem)
;; Convert an `Gpr` to a `GprMemImm`.
(decl gpr_to_gpr_mem_imm (Gpr) GprMemImm)
(extern constructor gpr_to_gpr_mem_imm gpr_to_gpr_mem_imm)
;; Convert an `Xmm` to a `Reg`.
(decl xmm_to_reg (Xmm) Reg)
(extern constructor xmm_to_reg xmm_to_reg)
;; Convert an `Xmm` into an `XmmMemImm`.
(decl xmm_to_xmm_mem_imm (Xmm) XmmMemImm)
(extern constructor xmm_to_xmm_mem_imm xmm_to_xmm_mem_imm)
;; Convert an `XmmMem` into an `XmmMemImm`.
(decl xmm_mem_to_xmm_mem_imm (XmmMem) XmmMemImm)
(extern constructor xmm_mem_to_xmm_mem_imm xmm_mem_to_xmm_mem_imm)
;; Convert an `XmmMem` into an `XmmMemAligned`.
;;
;; Note that this is an infallible conversion, not a fallible one. If the
;; original `XmmMem` source is a register, then it's passed through directly.
;; If it's `Mem` and refers to aligned memory, it's also passed through
;; directly. Otherwise, though, it's a memory source which is not aligned to
;; 16 bytes so a load is performed and the temporary register which is the
;; result of the load is passed through. The end-result is that the return value
;; here is guaranteed to be a register or an aligned memory location.
(decl xmm_mem_to_xmm_mem_aligned (XmmMem) XmmMemAligned)
(extern constructor xmm_mem_to_xmm_mem_aligned xmm_mem_to_xmm_mem_aligned)
;; Convert an `XmmMemImm` into an `XmmMemImmAligned`.
;;
;; Note that this is the same as `xmm_mem_to_xmm_mem_aligned` except it handles
;; an immediate case as well.
(decl xmm_mem_imm_to_xmm_mem_aligned_imm (XmmMemImm) XmmMemAlignedImm)
(extern constructor xmm_mem_imm_to_xmm_mem_aligned_imm xmm_mem_imm_to_xmm_mem_aligned_imm)
;; Allocate a new temporary GPR register.
(decl temp_writable_gpr () WritableGpr)
(extern constructor temp_writable_gpr temp_writable_gpr)
;; Allocate a new temporary XMM register.
(decl temp_writable_xmm () WritableXmm)
(extern constructor temp_writable_xmm temp_writable_xmm)
;; Construct a new `XmmMem` from the given `RegMem`.
;;
;; Asserts that the `RegMem`'s register, if any, is an XMM register.
(decl reg_mem_to_xmm_mem (RegMem) XmmMem)
(extern constructor reg_mem_to_xmm_mem reg_mem_to_xmm_mem)
;; Construct a new `RegMemImm` from the given `Reg`.
(decl reg_to_reg_mem_imm (Reg) RegMemImm)
(extern constructor reg_to_reg_mem_imm reg_to_reg_mem_imm)
;; Construct a new `GprMemImm` from the given `RegMemImm`.
;;
;; Asserts that the `RegMemImm`'s register, if any, is an GPR register.
(decl gpr_mem_imm_new (RegMemImm) GprMemImm)
(extern constructor gpr_mem_imm_new gpr_mem_imm_new)
;; Construct a new `XmmMemImm` from the given `RegMemImm`.
;;
;; Asserts that the `RegMemImm`'s register, if any, is an XMM register.
(decl xmm_mem_imm_new (RegMemImm) XmmMemImm)
(extern constructor xmm_mem_imm_new xmm_mem_imm_new)
;; Construct a new `XmmMem` from an `Xmm`.
(decl xmm_to_xmm_mem (Xmm) XmmMem)
(extern constructor xmm_to_xmm_mem xmm_to_xmm_mem)
;; Construct a new `XmmMem` from an `RegMem`.
(decl pure xmm_mem_to_reg_mem (XmmMem) RegMem)
(extern constructor xmm_mem_to_reg_mem xmm_mem_to_reg_mem)
;; Convert a `GprMem` to a `RegMem`.
(decl gpr_mem_to_reg_mem (GprMem) RegMem)
(extern constructor gpr_mem_to_reg_mem gpr_mem_to_reg_mem)
;; Construct a new `Xmm` from a `Reg`.
;;
;; Asserts that the register is a XMM.
(decl xmm_new (Reg) Xmm)
(extern constructor xmm_new xmm_new)
;; Construct a new `Gpr` from a `Reg`.
;;
;; Asserts that the register is a GPR.
(decl gpr_new (Reg) Gpr)
(extern constructor gpr_new gpr_new)
;; Construct a new `GprMem` from a `RegMem`.
;;
;; Asserts that the `RegMem`'s register, if any, is a GPR.
(decl reg_mem_to_gpr_mem (RegMem) GprMem)
(extern constructor reg_mem_to_gpr_mem reg_mem_to_gpr_mem)
;; Construct a `GprMem` from a `Reg`.
;;
;; Asserts that the `Reg` is a GPR.
(decl reg_to_gpr_mem (Reg) GprMem)
(extern constructor reg_to_gpr_mem reg_to_gpr_mem)
;; Construct a `GprMemImm` from a `Reg`.
;;
;; Asserts that the `Reg` is a GPR.
(decl reg_to_gpr_mem_imm (Reg) GprMemImm)
(rule (reg_to_gpr_mem_imm r)
(gpr_to_gpr_mem_imm (gpr_new r)))
;; Put a value into a GPR.
;;
;; Moves the value into a GPR if it is a type that would naturally go into an
;; XMM register.
(decl put_in_gpr (Value) Gpr)
;; Case for when the value naturally lives in a GPR.
(rule (put_in_gpr val)
(if-let (value_type ty) val)
(if-let (type_register_class (RegisterClass.Gpr _)) ty)
(gpr_new (put_in_reg val)))
;; Case for when the value naturally lives in an XMM register and we must
;; bitcast it from an XMM into a GPR.
(rule (put_in_gpr val)
(if-let (value_type ty) val)
(if-let (type_register_class (RegisterClass.Xmm)) ty)
(bitcast_xmm_to_gpr (ty_bits ty) (xmm_new (put_in_reg val))))
;; Put a value into a `GprMem`.
;;
;; Asserts that the value goes into a GPR.
(decl put_in_gpr_mem (Value) GprMem)
(rule (put_in_gpr_mem val)
(reg_mem_to_gpr_mem (put_in_reg_mem val)))
;; Put a value into a `GprMemImm`.
;;
;; Asserts that the value goes into a GPR.
(decl put_in_gpr_mem_imm (Value) GprMemImm)
(rule (put_in_gpr_mem_imm val)
(gpr_mem_imm_new (put_in_reg_mem_imm val)))
;; Put a value into a XMM.
;;
;; Asserts that the value goes into a XMM.
(decl put_in_xmm (Value) Xmm)
(rule (put_in_xmm val)
(xmm_new (put_in_reg val)))
;; Put a value into a `XmmMem`.
;;
;; Asserts that the value goes into a XMM.
(decl put_in_xmm_mem (Value) XmmMem)
(extern constructor put_in_xmm_mem put_in_xmm_mem)
;; Put a value into a `XmmMemImm`.
;;
;; Asserts that the value goes into a XMM.
(decl put_in_xmm_mem_imm (Value) XmmMemImm)
(extern constructor put_in_xmm_mem_imm put_in_xmm_mem_imm)
;; Construct an `InstOutput` out of a single GPR register.
(decl output_gpr (Gpr) InstOutput)
(rule (output_gpr x)
(output_reg (gpr_to_reg x)))
;; Construct a `ValueRegs` out of two GPR registers.
(decl value_gprs (Gpr Gpr) ValueRegs)
(rule (value_gprs x y)
(value_regs (gpr_to_reg x) (gpr_to_reg y)))
;; Construct an `InstOutput` out of a single XMM register.
(decl output_xmm (Xmm) InstOutput)
(rule (output_xmm x)
(output_reg (xmm_to_reg x)))
;; Get the `n`th reg in a `ValueRegs` and construct a GPR from it.
;;
;; Asserts that the register is a GPR.
(decl value_regs_get_gpr (ValueRegs usize) Gpr)
(rule (value_regs_get_gpr regs n)
(gpr_new (value_regs_get regs n)))
;; Convert a `Gpr` to an `Imm8Gpr`.
(decl gpr_to_imm8_gpr (Gpr) Imm8Gpr)
(extern constructor gpr_to_imm8_gpr gpr_to_imm8_gpr)
;; Convert an 8-bit immediate into an `Imm8Gpr`.
(decl imm8_to_imm8_gpr (u8) Imm8Gpr)
(extern constructor imm8_to_imm8_gpr imm8_to_imm8_gpr)
;; Get the low half of the given `Value` as a GPR.
(decl lo_gpr (Value) Gpr)
(rule (lo_gpr regs) (gpr_new (lo_reg regs)))
;; Construct a new `XmmMemImm` from a 32-bit immediate.
(decl xmi_imm (u32) XmmMemImm)
(extern constructor xmi_imm xmi_imm)
;;;; Helpers for determining the register class of a value type ;;;;;;;;;;;;;;;;
(type RegisterClass
(enum
(Gpr (single_register bool))
(Xmm)))
(decl type_register_class (RegisterClass) Type)
(extern extractor type_register_class type_register_class)
(decl is_xmm_type (Type) Type)
(extractor (is_xmm_type ty) (and (type_register_class (RegisterClass.Xmm)) ty))
(decl is_gpr_type (Type) Type)
(extractor (is_gpr_type ty) (and (type_register_class (RegisterClass.Gpr _)) ty))
(decl is_single_register_gpr_type (Type) Type)
(extractor (is_single_register_gpr_type ty)
(and (type_register_class (RegisterClass.Gpr $true)) ty))
(decl is_multi_register_gpr_type (Type) Type)
(extractor (is_multi_register_gpr_type ty)
(and (type_register_class (RegisterClass.Gpr $false)) ty))
;;;; Helpers for Querying Enabled ISA Extensions ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(decl pure use_avx512vl () bool)
(extern constructor use_avx512vl use_avx512vl)
(decl pure use_avx512dq () bool)
(extern constructor use_avx512dq use_avx512dq)
(decl pure use_avx512f () bool)
(extern constructor use_avx512f use_avx512f)
(decl pure use_avx512bitalg () bool)
(extern constructor use_avx512bitalg use_avx512bitalg)
(decl pure use_avx512vbmi () bool)
(extern constructor use_avx512vbmi use_avx512vbmi)
(decl pure use_lzcnt () bool)
(extern constructor use_lzcnt use_lzcnt)
(decl pure use_bmi1 () bool)
(extern constructor use_bmi1 use_bmi1)
(decl pure use_bmi2 () bool)
(extern constructor use_bmi2 use_bmi2)
(decl pure use_popcnt () bool)
(extern constructor use_popcnt use_popcnt)
(decl pure use_fma () bool)
(extern constructor use_fma use_fma)
(decl pure use_ssse3 () bool)
(extern constructor use_ssse3 use_ssse3)
(decl pure use_sse41 () bool)
(extern constructor use_sse41 use_sse41)
(decl pure use_sse42 () bool)
(extern constructor use_sse42 use_sse42)
(decl pure use_avx () bool)
(extern constructor use_avx use_avx)
(decl pure use_avx2 () bool)
(extern constructor use_avx2 use_avx2)
;;;; Helpers for Merging and Sinking Immediates/Loads ;;;;;;;;;;;;;;;;;;;;;;;;;
;; Extract a constant `Imm8Reg.Imm8` from a value operand.
(decl imm8_from_value (Imm8Reg) Value)
(extern extractor imm8_from_value imm8_from_value)
;; Mask a constant to the bit-width of the given type and package it into an
;; `Imm8Reg.Imm8`. This is used for shifts and rotates, so that we don't try and
;; shift/rotate more bits than the type has available, per Cranelift's
;; semantics.
(decl const_to_type_masked_imm8 (u64 Type) Imm8Gpr)
(extern constructor const_to_type_masked_imm8 const_to_type_masked_imm8)
;; Generate a mask for the bit-width of the given type
(decl shift_mask (Type) u8)
(extern constructor shift_mask shift_mask)
;; Mask a constant with the type's shift mask
(decl shift_amount_masked (Type Imm64) u8)
(extern constructor shift_amount_masked shift_amount_masked)
;; Extract a constant `GprMemImm.Imm` from a value operand.
(decl simm32_from_value (GprMemImm) Value)
(extern extractor simm32_from_value simm32_from_value)
;; A load that can be sunk into another operation.
(type SinkableLoad extern (enum))
;; Extract a `SinkableLoad` that works with `RegMemImm.Mem` from a value
;; operand.
;;
;; Note that this will only work for 32-bit-types-or-larger since this is
;; pervasively used with operations that load a minimum of 32-bits. For
;; instructions which load exactly the type width necessary use
;; `sinkable_load_exact`.
(decl sinkable_load (SinkableLoad) Value)
(extern extractor sinkable_load sinkable_load)
;; Same as `sinkable_load` except that all type widths of loads are supported.
;;
;; Only use this when the instruction which performs the load is guaranteed to
;; load the precisely correct size.
(decl sinkable_load_exact (SinkableLoad) Value)
(extern extractor sinkable_load_exact sinkable_load_exact)
;; Sink a `SinkableLoad` into a `SyntheticAmode`.
;;
;; This is a side-effectful operation that notifies the context that the
;; instruction that produced the `SinkableImm` has been sunk into another
;; instruction, and no longer needs to be lowered.
(decl sink_load (SinkableLoad) SyntheticAmode)
(extern constructor sink_load sink_load)
(decl sink_load_to_gpr_mem_imm (SinkableLoad) GprMemImm)
(rule (sink_load_to_gpr_mem_imm load)
(gpr_mem_imm_new load))
(decl sink_load_to_xmm_mem (SinkableLoad) XmmMem)
(rule (sink_load_to_xmm_mem load)
(reg_mem_to_xmm_mem load))
(decl sink_load_to_reg_mem (SinkableLoad) RegMem)
(rule (sink_load_to_reg_mem load) (RegMem.Mem load))
(decl sink_load_to_gpr_mem (SinkableLoad) GprMem)
(rule (sink_load_to_gpr_mem load) (RegMem.Mem load))
(decl sink_load_to_reg_mem_imm (SinkableLoad) RegMemImm)
(rule (sink_load_to_reg_mem_imm load) (RegMemImm.Mem load))
;;;; Helpers for constructing and emitting an `MInst` ;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; These helpers are intended to assist in emitting instructions by taking
;; source operands and automatically creating output operands which are then
;; returned. These are additionally designed to assist with SSA-like
;; construction where the writable version of a register is only present in
;; an `MInst` and every other reference to it is a readonly version.
;; Helper for creating XmmUninitializedValue instructions.
(decl xmm_uninit_value () Xmm)
(rule (xmm_uninit_value)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmUninitializedValue dst))))
dst))
;; Helper for constructing a LoadExtName instruction.
(decl load_ext_name (ExternalName i64 RelocDistance) Reg)
(rule (load_ext_name extname offset distance)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.LoadExtName dst extname offset distance))))
dst))
;; Helper for constructing a Mov64MR instruction.
(decl mov64_mr (SyntheticAmode) Reg)
(rule (mov64_mr addr)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.Mov64MR addr dst))))
dst))
;; Helper for emitting `MInst.AluRmiR` instructions.
(decl alu_rmi_r (Type AluRmiROpcode Gpr GprMemImm) Gpr)
(rule (alu_rmi_r ty opcode src1 src2)
(let ((dst WritableGpr (temp_writable_gpr))
(size OperandSize (operand_size_of_type_32_64 ty))
(_ Unit (emit (MInst.AluRmiR size opcode src1 src2 dst))))
dst))
;; Helper for emitting `MInst.AluRmRVex` instructions.
(decl alu_rm_r_vex (Type AluRmROpcode Gpr GprMem) Gpr)
(rule (alu_rm_r_vex ty opcode src1 src2)
(let ((dst WritableGpr (temp_writable_gpr))
(size OperandSize (operand_size_of_type_32_64 ty))
(_ Unit (emit (MInst.AluRmRVex size opcode src1 src2 dst))))
dst))
;; Helper for creating `MInst.XmmRmR` instructions.
(decl xmm_rm_r (SseOpcode Xmm XmmMemAligned) Xmm)
(rule (xmm_rm_r op src1 src2)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmRmR op src1 src2 dst))))
dst))
;; Helper for creating `MInst.XmmRmRUnaligned` instructions.
(decl xmm_rm_r_unaligned (SseOpcode Xmm XmmMem) Xmm)
(rule (xmm_rm_r_unaligned op src1 src2)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmRmRUnaligned op src1 src2 dst))))
dst))
;; Helper for creating `XmmRmRBlend` instructions
(decl xmm_rm_r_blend (SseOpcode Xmm XmmMemAligned Xmm) Xmm)
(rule (xmm_rm_r_blend op src1 src2 mask)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmRmRBlend op src1 src2 mask dst))))
dst))
;; Helper for creating `XmmRmRBlendVex` instructions
(decl xmm_rmr_blend_vex (AvxOpcode Xmm XmmMem Xmm) Xmm)
(rule (xmm_rmr_blend_vex op src1 src2 mask)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmRmRBlendVex op src1 src2 mask dst))))
dst))
;; Helper for creating `XmmUnaryRmRVex` instructions
(decl xmm_unary_rm_r_vex (AvxOpcode XmmMem) Xmm)
(rule (xmm_unary_rm_r_vex op src)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmUnaryRmRVex op src dst))))
dst))
;; Helper for creating `XmmUnaryRmRImmVex` instructions
(decl xmm_unary_rm_r_imm_vex (AvxOpcode XmmMem u8) Xmm)
(rule (xmm_unary_rm_r_imm_vex op src imm)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmUnaryRmRImmVex op src dst imm))))
dst))
;; Helper for creating `MInst.XmmRmRImm` instructions.
(decl xmm_rm_r_imm (SseOpcode Reg RegMem u8 OperandSize) Xmm)
(rule (xmm_rm_r_imm op src1 src2 imm size)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmRmRImm op
src1
src2
dst
imm
size))))
dst))
;; Helper for constructing `XmmVexPinsr` instructions.
(decl xmm_vex_pinsr (AvxOpcode Xmm GprMem u8) Xmm)
(rule (xmm_vex_pinsr op src1 src2 imm)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmVexPinsr op src1 src2 dst imm))))
dst))
;; Helper for constructing `XmmUnaryRmRImm` instructions.
(decl xmm_unary_rm_r_imm (SseOpcode XmmMemAligned u8) Xmm)
(rule (xmm_unary_rm_r_imm op src1 imm)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmUnaryRmRImm op src1 imm dst))))
dst))
;; Helper for creating `MInst.XmmUnaryRmR` instructions.
(decl xmm_unary_rm_r (SseOpcode XmmMemAligned) Xmm)
(rule (xmm_unary_rm_r op src)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmUnaryRmR op src dst))))
dst))
;; Helper for creating `MInst.XmmUnaryRmRUnaligned` instructions.
(decl xmm_unary_rm_r_unaligned (SseOpcode XmmMem) Xmm)
(rule (xmm_unary_rm_r_unaligned op src)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmUnaryRmRUnaligned op src dst))))
dst))
;; Helper for creating `MInst.XmmUnaryRmREvex` instructions.
(decl xmm_unary_rm_r_evex (Avx512Opcode XmmMem) Xmm)
(rule (xmm_unary_rm_r_evex op src)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmUnaryRmREvex op src dst))))
dst))
;; Helper for creating `MInst.XmmRmREvex` instructions.
(decl xmm_rm_r_evex (Avx512Opcode Xmm XmmMem) Xmm)
(rule (xmm_rm_r_evex op src1 src2)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmRmREvex op
src1
src2
dst))))
dst))
;; Helper for creating `MInst.XmmUnaryRmRImmEvex` instructions.
(decl xmm_unary_rm_r_imm_evex (Avx512Opcode XmmMem u8) Xmm)
(rule (xmm_unary_rm_r_imm_evex op src imm)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmUnaryRmRImmEvex op src dst imm))))
dst))
;; Helper for creating `MInst.XmmRmiXmm` instructions.
(decl xmm_rmi_xmm (SseOpcode Xmm XmmMemAlignedImm) Xmm)
(rule (xmm_rmi_xmm op src1 src2)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmRmiReg op
src1
src2
dst))))
dst))
;; Helper for creating `MInst.XmmToGprImm` instructions.
(decl xmm_to_gpr_imm (SseOpcode Xmm u8) Gpr)
(rule (xmm_to_gpr_imm op src imm)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.XmmToGprImm op src dst imm))))
dst))
;; Helper for creating `MInst.XmmToGprImmVex` instructions.
(decl xmm_to_gpr_imm_vex (AvxOpcode Xmm u8) Gpr)
(rule (xmm_to_gpr_imm_vex op src imm)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.XmmToGprImmVex op src dst imm))))
dst))
;; Helper for creating `MInst.GprToXmm` instructions.
(decl gpr_to_xmm (SseOpcode GprMem OperandSize) Xmm)
(rule (gpr_to_xmm op src size)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.GprToXmm op src dst size))))
dst))
;; Helper for creating `MInst.GprToXmmVex` instructions.
(decl gpr_to_xmm_vex (AvxOpcode GprMem OperandSize) Xmm)
(rule (gpr_to_xmm_vex op src size)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.GprToXmmVex op src dst size))))
dst))
;; Helper for creating `MInst.XmmToGpr` instructions.
(decl xmm_to_gpr (SseOpcode Xmm OperandSize) Gpr)
(rule (xmm_to_gpr op src size)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.XmmToGpr op src dst size))))
dst))
;; Helper for creating `MInst.XmmToGprVex` instructions.
(decl xmm_to_gpr_vex (AvxOpcode Xmm OperandSize) Gpr)
(rule (xmm_to_gpr_vex op src size)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.XmmToGprVex op src dst size))))
dst))
;; Helper for creating `xmm_min_max_seq` psuedo-instructions.
(decl xmm_min_max_seq (Type bool Xmm Xmm) Xmm)
(rule (xmm_min_max_seq ty is_min lhs rhs)
(let ((dst WritableXmm (temp_writable_xmm))
(size OperandSize (operand_size_of_type_32_64 ty))
(_ Unit (emit (MInst.XmmMinMaxSeq size is_min lhs rhs dst))))
dst))
;; Helper for creating `MInst.XmmRmiRVex` instructions.
(decl xmm_rmir_vex (AvxOpcode Xmm XmmMemImm) Xmm)
(rule (xmm_rmir_vex op src1 src2)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmRmiRVex op src1 src2 dst))))
dst))
;; Helper for creating `MInst.XmmRmRImmVex` instructions.
(decl xmm_rmr_imm_vex (AvxOpcode Xmm XmmMem u8) Xmm)
(rule (xmm_rmr_imm_vex op src1 src2 imm)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmRmRImmVex op src1 src2 dst imm))))
dst))
;; Helper for creating `MInst.XmmRmRVex3` instructions.
(decl xmm_rmr_vex3 (AvxOpcode Xmm Xmm XmmMem) Xmm)
(rule (xmm_rmr_vex3 op src1 src2 src3)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmRmRVex3 op src1 src2 src3 dst))))
dst))
;; Helper for creating `MInst.UnaryRmR` instructions.
(decl unary_rm_r (UnaryRmROpcode Gpr OperandSize) Gpr)
(rule (unary_rm_r op src size)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.UnaryRmR size op src dst))))
dst))
;; Helper for creating `MInst.UnaryRmRVex` instructions.
(decl unary_rm_r_vex (UnaryRmRVexOpcode GprMem OperandSize) Gpr)
(rule (unary_rm_r_vex op src size)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.UnaryRmRVex size op src dst))))
dst))
;; Helper for creating `MInst.UnaryRmRImmVex` instructions.
(decl unary_rm_r_imm_vex (UnaryRmRImmVexOpcode GprMem OperandSize u8) Gpr)
(rule (unary_rm_r_imm_vex op src size imm)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.UnaryRmRImmVex size op src dst imm))))
dst))
(decl cvt_int_to_float (SseOpcode Xmm GprMem OperandSize) Xmm)
(rule (cvt_int_to_float op src1 src2 size)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.CvtIntToFloat op src1 src2 dst size))))
dst))
(decl cvt_int_to_float_vex (AvxOpcode Xmm GprMem OperandSize) Xmm)
(rule (cvt_int_to_float_vex op src1 src2 size)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.CvtIntToFloatVex op src1 src2 dst size))))
dst))
(decl cvt_u64_to_float_seq (Type Gpr) Xmm)
(rule (cvt_u64_to_float_seq ty src)
(let ((size OperandSize (raw_operand_size_of_type ty))
(dst WritableXmm (temp_writable_xmm))
(tmp_gpr1 WritableGpr (temp_writable_gpr))
(tmp_gpr2 WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.CvtUint64ToFloatSeq size src dst tmp_gpr1 tmp_gpr2))))
dst))
(decl cvt_float_to_uint_seq (Type Value bool) Gpr)
(rule (cvt_float_to_uint_seq out_ty src @ (value_type src_ty) is_saturating)
(let ((out_size OperandSize (raw_operand_size_of_type out_ty))
(src_size OperandSize (raw_operand_size_of_type src_ty))
(dst WritableGpr (temp_writable_gpr))
(tmp_xmm WritableXmm (temp_writable_xmm))
(tmp_xmm2 WritableXmm (temp_writable_xmm))
(tmp_gpr WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.CvtFloatToUintSeq out_size src_size is_saturating src dst tmp_gpr tmp_xmm tmp_xmm2))))
dst))
(decl cvt_float_to_sint_seq (Type Value bool) Gpr)
(rule (cvt_float_to_sint_seq out_ty src @ (value_type src_ty) is_saturating)
(let ((out_size OperandSize (raw_operand_size_of_type out_ty))
(src_size OperandSize (raw_operand_size_of_type src_ty))
(dst WritableGpr (temp_writable_gpr))
(tmp_xmm WritableXmm (temp_writable_xmm))
(tmp_gpr WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.CvtFloatToSintSeq out_size src_size is_saturating src dst tmp_gpr tmp_xmm))))
dst))
;; Helper for creating `MovFromPReg` instructions.
(decl mov_from_preg (PReg) Reg)
(rule (mov_from_preg preg)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.MovFromPReg preg dst))))
dst))
;;;; Helpers for Sign/Zero Extending ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(type ExtKind extern
(enum None
SignExtend
ZeroExtend))
(type ExtendKind (enum Sign Zero))
(type ExtMode extern (enum BL BQ WL WQ LQ))
;; `ExtMode::new`
(decl ext_mode (u16 u16) ExtMode)
(extern constructor ext_mode ext_mode)
;; Put the given value into a register, but extended as the given type.
(decl extend_to_gpr (Value Type ExtendKind) Gpr)
;; If the value is already of the requested type, no extending is necessary.
(rule 3 (extend_to_gpr val @ (value_type ty) ty _kind)
val)
;; I32 -> I64 with op that produces a zero-extended value in a register.
;;
;; As a particular x64 extra-pattern matching opportunity, all the ALU
;; opcodes on 32-bits will zero-extend the upper 32-bits, so we can
;; even not generate a zero-extended move in this case.
(rule 2 (extend_to_gpr src @ (value_type $I32) $I64 (ExtendKind.Zero))
(if-let $true (value32_zeros_upper32 src))
(add_range_fact src 64 0 0xffff_ffff))
;; Both extend instructions are guaranteed to load exactly the source type's size.
;; So we can use `sinkable_load_exact` here to sink loads for small types (<= 16 bits).
(rule 1 (extend_to_gpr (and (sinkable_load_exact val) (value_type from_ty)) to_ty kind)
(extend_to_gpr_types val from_ty to_ty kind))
;; Otherwise emit the extend from a Gpr to a Gpr.
(rule (extend_to_gpr (and val (value_type from_ty)) to_ty kind)
(extend_to_gpr_types val from_ty to_ty kind))
;; Calculates the correct extension mode for an extend between `from_ty` and `to_ty`.
(decl extend_to_gpr_types (GprMem Type Type ExtendKind) Gpr)
(rule (extend_to_gpr_types val from_ty to_ty kind)
(let ((from_bits u16 (ty_bits_u16 from_ty))
;; Use `operand_size_of_type` so that the we clamp the output to 32-
;; or 64-bit width types.
(to_bits u16 (operand_size_bits (operand_size_of_type_32_64 to_ty))))
(extend kind
to_ty
(ext_mode from_bits to_bits)
val)))
;; Do a sign or zero extension of the given `GprMem`.
(decl extend (ExtendKind Type ExtMode GprMem) Gpr)
;; Zero extending uses `movzx`.
(rule (extend (ExtendKind.Zero) ty mode src)
(x64_movzx mode src))
;; Sign extending uses `movsx`.
(rule (extend (ExtendKind.Sign) ty mode src)
(x64_movsx mode src))
;; Tests whether the operation used to produce the input `Value`, which must
;; be a 32-bit operation, will automatically zero the upper 32-bits of the
;; destination register that `Value` is placed in.
(decl pure value32_zeros_upper32 (Value) bool)
(rule (value32_zeros_upper32 (iadd _ _)) $true)
(rule (value32_zeros_upper32 (isub _ _)) $true)
(rule (value32_zeros_upper32 (imul _ _)) $true)
(rule (value32_zeros_upper32 (band _ _)) $true)
(rule (value32_zeros_upper32 (bor _ _)) $true)
(rule (value32_zeros_upper32 (bxor _ _)) $true)
(rule (value32_zeros_upper32 (ishl _ _)) $true)
(rule (value32_zeros_upper32 (ushr _ _)) $true)
(rule (value32_zeros_upper32 (uload32 _ _ _)) $true)
(rule -1 (value32_zeros_upper32 _) $false)
;;;; Helpers for Working SSE tidbits ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Turn a vector type into its integer-typed vector equivalent.
(decl vec_int_type (Type) Type)
(rule (vec_int_type (multi_lane 8 16)) $I8X16)
(rule (vec_int_type (multi_lane 16 8)) $I16X8)
(rule (vec_int_type (multi_lane 32 4)) $I32X4)
(rule (vec_int_type (multi_lane 64 2)) $I64X2)
;; Performs an xor operation of the two operands specified.
(decl x64_xor_vector (Type Xmm XmmMem) Xmm)
(rule 1 (x64_xor_vector $F16 x y) (x64_xorps x y))
(rule 1 (x64_xor_vector $F32 x y) (x64_xorps x y))
(rule 1 (x64_xor_vector $F64 x y) (x64_xorpd x y))
(rule 1 (x64_xor_vector $F128 x y) (x64_xorps x y))
(rule 1 (x64_xor_vector $F32X4 x y) (x64_xorps x y))
(rule 1 (x64_xor_vector $F64X2 x y) (x64_xorpd x y))
(rule 0 (x64_xor_vector (multi_lane _ _) x y) (x64_pxor x y))
;; Generates a register value which has an all-ones pattern.
;;
;; Note that this is accomplished by comparing a fresh register with itself,
;; which for integers is always true. Also note that the comparison is always
;; done for integers. This is because we're comparing a fresh register to itself
;; and we don't know the previous contents of the register. If a floating-point
;; comparison is used then it runs the risk of comparing NaN against NaN and not
;; actually producing an all-ones mask. By using integer comparison operations
;; we're guaranteeed that everything is equal to itself.
(decl vector_all_ones () Xmm)
(rule (vector_all_ones)
(let ((tmp Xmm (xmm_uninit_value)))
(x64_pcmpeqd tmp tmp)))
;; Move a `RegMemImm.Reg` operand to an XMM register, if necessary.
(decl mov_rmi_to_xmm (RegMemImm) XmmMemImm)
(rule (mov_rmi_to_xmm rmi @ (RegMemImm.Mem _)) (xmm_mem_imm_new rmi))
(rule (mov_rmi_to_xmm rmi @ (RegMemImm.Imm _)) (xmm_mem_imm_new rmi))
(rule (mov_rmi_to_xmm (RegMemImm.Reg r)) (x64_movd_to_xmm r))
;;;; Helpers for Emitting Calls ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(decl gen_call (SigRef ExternalName RelocDistance ValueSlice) InstOutput)
(extern constructor gen_call gen_call)
(decl gen_call_indirect (SigRef Value ValueSlice) InstOutput)
(extern constructor gen_call_indirect gen_call_indirect)
;;;; Helpers for emitting stack switches ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(decl x64_stack_switch_basic (Gpr Gpr Gpr) Gpr)
(rule (x64_stack_switch_basic store_context_ptr load_context_ptr in_payload0)
(let ((out_payload0 WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.StackSwitchBasic store_context_ptr
load_context_ptr
in_payload0
out_payload0))))
out_payload0))
;;;; Helpers for Emitting Loads ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Load a value into a register.
(decl x64_load (Type SyntheticAmode ExtKind) Reg)
(rule 1 (x64_load (fits_in_32 ty) addr (ExtKind.SignExtend))
(x64_movsx (ext_mode (ty_bytes ty) 8)
addr))
(rule 2 (x64_load $I64 addr _ext_kind)
(mov64_mr addr))
(rule 2 (x64_load $F32 addr _ext_kind)
(x64_movss_load addr))
(rule 2 (x64_load $F64 addr _ext_kind)
(x64_movsd_load addr))
(rule 2 (x64_load $F128 addr _ext_kind)
(x64_movdqu_load addr))
(rule 2 (x64_load $F32X4 addr _ext_kind)
(x64_movups_load addr))
(rule 2 (x64_load $F64X2 addr _ext_kind)
(x64_movupd_load addr))
(rule 0 (x64_load (multi_lane _bits _lanes) addr _ext_kind)
(x64_movdqu_load addr))
(decl x64_mov (Amode) Reg)
(rule (x64_mov addr)
(mov64_mr addr))
(decl x64_movzx (ExtMode GprMem) Gpr)
(rule (x64_movzx mode src)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.MovzxRmR mode src dst))))
dst))
(decl x64_movsx (ExtMode GprMem) Gpr)
(rule (x64_movsx mode src)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.MovsxRmR mode src dst))))
dst))
(decl x64_movss_load (SyntheticAmode) Xmm)
(rule (x64_movss_load from)
(xmm_unary_rm_r_unaligned (SseOpcode.Movss) from))
(rule 1 (x64_movss_load from)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vmovss) from))
(decl x64_movss_store (SyntheticAmode Xmm) SideEffectNoResult)
(rule (x64_movss_store addr data)
(xmm_movrm (SseOpcode.Movss) addr data))
(rule 1 (x64_movss_store addr data)
(if-let $true (use_avx))
(xmm_movrm_vex (AvxOpcode.Vmovss) addr data))
(decl x64_movsd_load (SyntheticAmode) Xmm)
(rule (x64_movsd_load from)
(xmm_unary_rm_r_unaligned (SseOpcode.Movsd) from))
(rule 1 (x64_movsd_load from)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vmovsd) from))
(decl x64_movsd_store (SyntheticAmode Xmm) SideEffectNoResult)
(rule (x64_movsd_store addr data)
(xmm_movrm (SseOpcode.Movsd) addr data))
(rule 1 (x64_movsd_store addr data)
(if-let $true (use_avx))
(xmm_movrm_vex (AvxOpcode.Vmovsd) addr data))
(decl x64_movups_load (SyntheticAmode) Xmm)
(rule (x64_movups_load from)
(xmm_unary_rm_r_unaligned (SseOpcode.Movups) from))
(rule 1 (x64_movups_load from)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vmovups) from))
(decl x64_movups_store (SyntheticAmode Xmm) SideEffectNoResult)
(rule (x64_movups_store addr data)
(xmm_movrm (SseOpcode.Movups) addr data))
(rule 1 (x64_movups_store addr data)
(if-let $true (use_avx))
(xmm_movrm_vex (AvxOpcode.Vmovups) addr data))
(decl x64_movupd_load (SyntheticAmode) Xmm)
(rule (x64_movupd_load from)
(xmm_unary_rm_r_unaligned (SseOpcode.Movupd) from))
(rule 1 (x64_movupd_load from)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vmovupd) from))
(decl x64_movupd_store (SyntheticAmode Xmm) SideEffectNoResult)
(rule (x64_movupd_store addr data)
(xmm_movrm (SseOpcode.Movupd) addr data))
(rule 1 (x64_movupd_store addr data)
(if-let $true (use_avx))
(xmm_movrm_vex (AvxOpcode.Vmovupd) addr data))
;; Helper for creating `movd` instructions.
(decl x64_movd_to_gpr (Xmm) Gpr)
(rule (x64_movd_to_gpr from)
(xmm_to_gpr (SseOpcode.Movd) from (OperandSize.Size32)))
(rule 1 (x64_movd_to_gpr from)
(if-let $true (use_avx))
(xmm_to_gpr_vex (AvxOpcode.Vmovd) from (OperandSize.Size32)))
;; Helper for creating `movd` instructions.
(decl x64_movd_to_xmm (GprMem) Xmm)
(rule (x64_movd_to_xmm from)
(gpr_to_xmm (SseOpcode.Movd) from (OperandSize.Size32)))
(rule 1 (x64_movd_to_xmm from)
(if-let $true (use_avx))
(gpr_to_xmm_vex (AvxOpcode.Vmovd) from (OperandSize.Size32)))
;; Helper for creating `movq` instructions.
(decl x64_movq_to_xmm (GprMem) Xmm)
(rule (x64_movq_to_xmm src)
(gpr_to_xmm (SseOpcode.Movq) src (OperandSize.Size64)))
(rule 1 (x64_movq_to_xmm from)
(if-let $true (use_avx))
(gpr_to_xmm_vex (AvxOpcode.Vmovq) from (OperandSize.Size64)))
;; Helper for creating `movq` instructions.
(decl x64_movq_to_gpr (Xmm) Gpr)
(rule (x64_movq_to_gpr src)
(xmm_to_gpr (SseOpcode.Movq) src (OperandSize.Size64)))
(rule 1 (x64_movq_to_gpr from)
(if-let $true (use_avx))
(xmm_to_gpr_vex (AvxOpcode.Vmovq) from (OperandSize.Size64)))
(decl x64_movdqu_load (XmmMem) Xmm)
(rule (x64_movdqu_load from)
(xmm_unary_rm_r_unaligned (SseOpcode.Movdqu) from))
(rule 1 (x64_movdqu_load from)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vmovdqu) from))
(decl x64_movdqu_store (SyntheticAmode Xmm) SideEffectNoResult)
(rule (x64_movdqu_store addr data)
(xmm_movrm (SseOpcode.Movdqu) addr data))
(rule 1 (x64_movdqu_store addr data)
(if-let $true (use_avx))
(xmm_movrm_vex (AvxOpcode.Vmovdqu) addr data))
(decl x64_pmovsxbw (XmmMem) Xmm)
(rule (x64_pmovsxbw from)
(xmm_unary_rm_r_unaligned (SseOpcode.Pmovsxbw) from))
(rule 1 (x64_pmovsxbw from)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vpmovsxbw) from))
(decl x64_pmovzxbw (XmmMem) Xmm)
(rule (x64_pmovzxbw from)
(xmm_unary_rm_r_unaligned (SseOpcode.Pmovzxbw) from))
(rule 1 (x64_pmovzxbw from)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vpmovzxbw) from))
(decl x64_pmovsxwd (XmmMem) Xmm)
(rule (x64_pmovsxwd from)
(xmm_unary_rm_r_unaligned (SseOpcode.Pmovsxwd) from))
(rule 1 (x64_pmovsxwd from)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vpmovsxwd) from))
(decl x64_pmovzxwd (XmmMem) Xmm)
(rule (x64_pmovzxwd from)
(xmm_unary_rm_r_unaligned (SseOpcode.Pmovzxwd) from))
(rule 1 (x64_pmovzxwd from)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vpmovzxwd) from))
(decl x64_pmovsxdq (XmmMem) Xmm)
(rule (x64_pmovsxdq from)
(xmm_unary_rm_r_unaligned (SseOpcode.Pmovsxdq) from))
(rule 1 (x64_pmovsxdq from)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vpmovsxdq) from))
(decl x64_pmovzxdq (XmmMem) Xmm)
(rule (x64_pmovzxdq from)
(xmm_unary_rm_r_unaligned (SseOpcode.Pmovzxdq) from))
(rule 1 (x64_pmovzxdq from)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vpmovzxdq) from))
(decl x64_movrm (Type SyntheticAmode Gpr) SideEffectNoResult)
(rule (x64_movrm ty addr data)
(let ((size OperandSize (raw_operand_size_of_type ty)))
(SideEffectNoResult.Inst (MInst.MovRM size data addr))))
(decl x64_movimm_m (Type SyntheticAmode i32) SideEffectNoResult)
(rule (x64_movimm_m ty addr imm)
(let ((size OperandSize (raw_operand_size_of_type ty)))
(SideEffectNoResult.Inst (MInst.MovImmM size imm addr))))
(decl xmm_movrm (SseOpcode SyntheticAmode Xmm) SideEffectNoResult)
(rule (xmm_movrm op addr data)
(SideEffectNoResult.Inst (MInst.XmmMovRM op data addr)))
(decl xmm_movrm_imm (SseOpcode SyntheticAmode Xmm u8) SideEffectNoResult)
(rule (xmm_movrm_imm op addr data imm)
(SideEffectNoResult.Inst (MInst.XmmMovRMImm op data addr imm)))
(decl xmm_movrm_vex (AvxOpcode SyntheticAmode Xmm) SideEffectNoResult)
(rule (xmm_movrm_vex op addr data)
(SideEffectNoResult.Inst (MInst.XmmMovRMVex op data addr)))
(decl xmm_movrm_imm_vex (AvxOpcode SyntheticAmode Xmm u8) SideEffectNoResult)
(rule (xmm_movrm_imm_vex op addr data imm)
(SideEffectNoResult.Inst (MInst.XmmMovRMImmVex op data addr imm)))
;; Load a constant into an XMM register.
(decl x64_xmm_load_const (Type VCodeConstant) Xmm)
(rule (x64_xmm_load_const ty const)
(x64_load ty (const_to_synthetic_amode const) (ExtKind.None)))
;;;; Instruction Constructors ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; These constructors create SSA-style `MInst`s. It is their responsibility to
;; maintain the invariant that each temporary register they allocate and define
;; only gets defined the once.
;; Helper for emitting `add` instructions.
(decl x64_add (Type Gpr GprMemImm) Gpr)
(rule (x64_add ty src1 src2)
(alu_rmi_r ty
(AluRmiROpcode.Add)
src1
src2))
;; Helper for creating `add` instructions whose flags are also used.
(decl x64_add_with_flags_paired (Type Gpr GprMemImm) ProducesFlags)
(rule (x64_add_with_flags_paired ty src1 src2)
(let ((dst WritableGpr (temp_writable_gpr)))
(ProducesFlags.ProducesFlagsReturnsResultWithConsumer
(MInst.AluRmiR (operand_size_of_type_32_64 ty)
(AluRmiROpcode.Add)
src1
src2
dst)
dst)))
(decl x64_alurmi_with_flags_paired (AluRmiROpcode Type Gpr GprMemImm) ProducesFlags)
(rule (x64_alurmi_with_flags_paired opc (fits_in_64 ty) src1 src2)
(let ((dst WritableGpr (temp_writable_gpr)))
(ProducesFlags.ProducesFlagsReturnsResultWithConsumer
(MInst.AluRmiR (raw_operand_size_of_type ty)
opc
src1
src2
dst)
dst)))
(decl x64_alurmi_flags_side_effect (AluRmiROpcode Type Gpr GprMemImm) ProducesFlags)
(rule (x64_alurmi_flags_side_effect opc (fits_in_64 ty) src1 src2)
(ProducesFlags.ProducesFlagsSideEffect
(MInst.AluRmiR (raw_operand_size_of_type ty)
opc
src1
src2
(temp_writable_gpr))))
;; Should only be used for Adc and Sbb
(decl x64_alurmi_with_flags_chained (AluRmiROpcode Type Gpr GprMemImm) ConsumesAndProducesFlags)
(rule (x64_alurmi_with_flags_chained opc (fits_in_64 ty) src1 src2)
(let ((dst WritableGpr (temp_writable_gpr)))
(ConsumesAndProducesFlags.ReturnsReg
(MInst.AluRmiR (raw_operand_size_of_type ty)
opc
src1
src2
dst)
dst)))
;; Helper for creating `adc` instructions.
(decl x64_adc_paired (Type Gpr GprMemImm) ConsumesFlags)
(rule (x64_adc_paired ty src1 src2)
(let ((dst WritableGpr (temp_writable_gpr)))
(ConsumesFlags.ConsumesFlagsReturnsResultWithProducer
(MInst.AluRmiR (operand_size_of_type_32_64 ty)
(AluRmiROpcode.Adc)
src1
src2
dst)
dst)))
;; Helper for emitting `sub` instructions.
(decl x64_sub (Type Gpr GprMemImm) Gpr)
(rule (x64_sub ty src1 src2)
(alu_rmi_r ty
(AluRmiROpcode.Sub)
src1
src2))
;; Helper for creating `sub` instructions whose flags are also used.
(decl x64_sub_with_flags_paired (Type Gpr GprMemImm) ProducesFlags)
(rule (x64_sub_with_flags_paired ty src1 src2)
(let ((dst WritableGpr (temp_writable_gpr)))
(ProducesFlags.ProducesFlagsReturnsResultWithConsumer
(MInst.AluRmiR (operand_size_of_type_32_64 ty)
(AluRmiROpcode.Sub)
src1
src2
dst)
dst)))
;; Helper for creating `sbb` instructions.
(decl x64_sbb_paired (Type Gpr GprMemImm) ConsumesFlags)
(rule (x64_sbb_paired ty src1 src2)
(let ((dst WritableGpr (temp_writable_gpr)))
(ConsumesFlags.ConsumesFlagsReturnsResultWithProducer
(MInst.AluRmiR (operand_size_of_type_32_64 ty)
(AluRmiROpcode.Sbb)
src1
src2
dst)
dst)))
;; Helper for creating `mul` instructions or `imul` instructions (depending
;; on `signed`)
(decl x64_mul (Type bool Gpr GprMem) ValueRegs)
(rule (x64_mul ty signed src1 src2)
(let ((dst_lo WritableGpr (temp_writable_gpr))
(dst_hi WritableGpr (temp_writable_gpr))
(size OperandSize (raw_operand_size_of_type ty))
(_ Unit (emit (MInst.Mul size signed src1 src2 dst_lo dst_hi))))
(value_gprs dst_lo dst_hi)))
;; Helper for creating `mul` instructions or `imul` instructions (depending
;; on `signed`) for 8-bit operands.
(decl x64_mul8 (bool Gpr GprMem) Gpr)
(rule (x64_mul8 signed src1 src2)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.Mul8 signed src1 src2 dst))))
dst))
;; Helper for creating `imul` instructions.
(decl x64_imul (Type Gpr GprMem) Gpr)
(rule (x64_imul ty src1 src2)
(let ((dst WritableGpr (temp_writable_gpr))
(size OperandSize (raw_operand_size_of_type ty))
(_ Unit (emit (MInst.IMul size src1 src2 dst))))
dst))
;; Helper for creating `imul` instructions with an immediate operand.
(decl x64_imul_imm (Type GprMem i32) Gpr)
(rule (x64_imul_imm ty src1 src2)
(let ((dst WritableGpr (temp_writable_gpr))
(size OperandSize (raw_operand_size_of_type ty))
(_ Unit (emit (MInst.IMulImm size src1 src2 dst))))
dst))
(decl x64_mul8_with_flags_paired (bool Gpr GprMem) ProducesFlags)
(rule (x64_mul8_with_flags_paired signed src1 src2)
(let ((dst WritableGpr (temp_writable_gpr)))
(ProducesFlags.ProducesFlagsReturnsResultWithConsumer
(MInst.Mul8 signed src1 src2 dst)
dst)))
(decl x64_mul_lo_with_flags_paired (Type bool Gpr GprMem) ProducesFlags)
(rule (x64_mul_lo_with_flags_paired ty signed src1 src2)
(let ((dst_lo WritableGpr (temp_writable_gpr))
(dst_hi WritableGpr (temp_writable_gpr))
(size OperandSize (raw_operand_size_of_type ty)))
(ProducesFlags.ProducesFlagsReturnsResultWithConsumer
(MInst.Mul size signed src1 src2 dst_lo dst_hi)
dst_lo)))
;; Helper for emitting `and` instructions.
(decl x64_and (Type Gpr GprMemImm) Gpr)
(rule (x64_and ty src1 src2)
(alu_rmi_r ty
(AluRmiROpcode.And)
src1
src2))
(decl x64_and_with_flags_paired (Type Gpr GprMemImm) ProducesFlags)
(rule (x64_and_with_flags_paired ty src1 src2)
(let ((dst WritableGpr (temp_writable_gpr)))
(ProducesFlags.ProducesFlagsSideEffect
(MInst.AluRmiR (operand_size_of_type_32_64 ty)
(AluRmiROpcode.And)
src1
src2
dst))))
;; Helper for emitting `or` instructions.
(decl x64_or (Type Gpr GprMemImm) Gpr)
(rule (x64_or ty src1 src2)
(alu_rmi_r ty
(AluRmiROpcode.Or)
src1
src2))
;; Helper for emitting `xor` instructions.
(decl x64_xor (Type Gpr GprMemImm) Gpr)
(rule (x64_xor ty src1 src2)
(alu_rmi_r ty
(AluRmiROpcode.Xor)
src1
src2))
(decl x64_andn (Type Gpr GprMem) Gpr)
(rule (x64_andn ty src1 src2)
(alu_rm_r_vex ty (AluRmROpcode.Andn) src1 src2))
;; Helper for emitting immediates with an `i64` value. Note that
;; integer constants in ISLE are always parsed as `i128`s; this enables
;; negative numbers to be used as immediates.
(decl imm_i64 (Type i64) Reg)
(rule (imm_i64 ty value)
(imm ty (i64_as_u64 value)))
(decl nonzero_u64_fits_in_u32 (u64) u64)
(extern extractor nonzero_u64_fits_in_u32 nonzero_u64_fits_in_u32)
;; Helper for emitting immediates.
;;
;; There are three priorities in use in this rule:
;; 2 - rules that match on an explicit type
;; 1 - rules that match on types that fit in 64 bits
;; 0 - rules that match on vectors
(decl imm (Type u64) Reg)
;; Integer immediates.
(rule 1 (imm (fits_in_64 ty) (u64_nonzero simm64))
(let ((dst WritableGpr (temp_writable_gpr))
(size OperandSize (operand_size_of_type_32_64 ty))
(_ Unit (emit (MInst.Imm size simm64 dst))))
dst))
;; `f16` immediates.
(rule 2 (imm $F16 (u64_nonzero bits))
(bitcast_gpr_to_xmm 16 (imm $I16 bits)))
;; `f32` immediates.
(rule 2 (imm $F32 (u64_nonzero bits))
(x64_movd_to_xmm (imm $I32 bits)))
;; `f64` immediates.
(rule 2 (imm $F64 (u64_nonzero bits))
(x64_movq_to_xmm (imm $I64 bits)))
;; Special case for when a 64-bit immediate fits into 32-bits. We can use a
;; 32-bit move that zero-extends the value, which has a smaller encoding.
(rule 2 (imm $I64 (nonzero_u64_fits_in_u32 x))
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.Imm (OperandSize.Size32) x dst))))
dst))
;; Special case for integer zero immediates: turn them into an `xor r, r`.
(rule 1 (imm (fits_in_64 ty) (u64_zero))
(let ((wgpr WritableGpr (temp_writable_gpr))
(size OperandSize (operand_size_of_type_32_64 ty))
(_ Unit (emit (MInst.AluConstOp (AluRmiROpcode.Xor) size wgpr))))
(gpr_to_reg wgpr)))
;; Special case for zero immediates with vector types, they turn into an xor
;; specific to the vector type.
(rule 0 (imm ty @ (multi_lane _bits _lanes) 0)
(xmm_to_reg (xmm_zero ty)))
;; Special case for `f16` zero immediates
(rule 2 (imm ty @ $F16 (u64_zero)) (xmm_zero ty))
;; Special case for `f32` zero immediates
(rule 2 (imm ty @ $F32 (u64_zero)) (xmm_zero ty))
;; TODO: use cmpeqps for all 1s
;; Special case for `f64` zero immediates to use `xorpd`.
(rule 2 (imm ty @ $F64 (u64_zero)) (xmm_zero ty))
;; TODO: use cmpeqpd for all 1s
(decl xmm_zero (Type) Xmm)
(rule (xmm_zero ty)
(let ((tmp Xmm (xmm_uninit_value)))
(x64_xor_vector ty tmp tmp)))
;; Helper for creating `MInst.ShiftR` instructions.
(decl shift_r (Type ShiftKind Gpr Imm8Gpr) Gpr)
(rule (shift_r ty kind src1 src2)
(let ((dst WritableGpr (temp_writable_gpr))
;; Use actual 8/16-bit instructions when appropriate: we
;; rely on their shift-amount-masking semantics.
(size OperandSize (raw_operand_size_of_type ty))
(_ Unit (emit (MInst.ShiftR size kind src1 src2 dst))))
dst))
;; Helper for creating `rotl` instructions.
(decl x64_rotl (Type Gpr Imm8Gpr) Gpr)
(rule (x64_rotl ty src1 src2)
(shift_r ty (ShiftKind.RotateLeft) src1 src2))
(rule 1 (x64_rotl (ty_32_or_64 ty) src (imm8_from_imm8_gpr imm))
(if-let $true (use_bmi2))
(x64_rorx ty src (u8_sub (ty_bits ty) imm)))
;; Helper for creating `rotr` instructions.
(decl x64_rotr (Type Gpr Imm8Gpr) Gpr)
(rule (x64_rotr ty src1 src2)
(shift_r ty (ShiftKind.RotateRight) src1 src2))
(rule 1 (x64_rotr (ty_32_or_64 ty) src (imm8_from_imm8_gpr imm))
(if-let $true (use_bmi2))
(x64_rorx ty src imm))
;; Helper for creating `shl` instructions.
(decl x64_shl (Type Gpr Imm8Gpr) Gpr)
(rule (x64_shl ty src1 src2)
(shift_r ty (ShiftKind.ShiftLeft) src1 src2))
;; With BMI2 the `shlx` instruction is also available, and it's unconditionally
;; used for registers shifted by registers since it provides more freedom
;; in regalloc since nothing is constrained. Note that the `shlx` instruction
;; doesn't encode an immediate so any immediate-based shift still uses `shl`.
(rule 1 (x64_shl (ty_32_or_64 ty) src1 (gpr_from_imm8_gpr src2))
(if-let $true (use_bmi2))
(x64_shlx ty src1 src2))
;; Helper for creating logical shift-right instructions.
(decl x64_shr (Type Gpr Imm8Gpr) Gpr)
(rule (x64_shr ty src1 src2)
(shift_r ty (ShiftKind.ShiftRightLogical) src1 src2))
;; see `x64_shl` for more info about this rule
(rule 1 (x64_shr (ty_32_or_64 ty) src1 (gpr_from_imm8_gpr src2))
(if-let $true (use_bmi2))
(x64_shrx ty src1 src2))
;; Helper for creating arithmetic shift-right instructions.
(decl x64_sar (Type Gpr Imm8Gpr) Gpr)
(rule (x64_sar ty src1 src2)
(shift_r ty (ShiftKind.ShiftRightArithmetic) src1 src2))
;; see `x64_shl` for more info about this rule
(rule 1 (x64_sar (ty_32_or_64 ty) src1 (gpr_from_imm8_gpr src2))
(if-let $true (use_bmi2))
(x64_sarx ty src1 src2))
;; Helper for creating zeroing-of-high-bits instructions bzhi
;;
;; Note that the `src` operands are swapped here. The amount-to-shift-by
;; is stored in `vvvv` which is `src1` in the `AluRmRVex` instruction shape.
(decl x64_bzhi (Type GprMem Gpr) Gpr)
(rule (x64_bzhi ty src1 src2)
(alu_rm_r_vex ty (AluRmROpcode.Bzhi) src2 src1))
;; Helper for creating byteswap instructions.
;; In x64, 32- and 64-bit registers use BSWAP instruction, and
;; for 16-bit registers one must instead use xchg or rol/ror
(decl x64_bswap (Type Gpr) Gpr)
(rule (x64_bswap ty src)
(let ((dst WritableGpr (temp_writable_gpr))
(size OperandSize (operand_size_of_type_32_64 ty))
(_ Unit (emit (MInst.Bswap size src dst))))
dst))
;; Helper for creating `MInst.CmpRmiR` instructions.
(decl cmp_rmi_r (OperandSize CmpOpcode Gpr GprMemImm) ProducesFlags)
(rule (cmp_rmi_r size opcode src1 src2)
(ProducesFlags.ProducesFlagsSideEffect
(MInst.CmpRmiR size
opcode
src1
src2)))
;; Helper for creating `cmp` instructions.
(decl x64_cmp (OperandSize Gpr GprMemImm) ProducesFlags)
(rule (x64_cmp size src1 src2)
(cmp_rmi_r size (CmpOpcode.Cmp) src1 src2))
;; Helper for creating `cmp` instructions with an immediate.
(decl x64_cmp_imm (OperandSize Gpr u32) ProducesFlags)
(rule (x64_cmp_imm size src1 src2)
(x64_cmp size src1 (RegMemImm.Imm src2)))
;; Helper for creating `MInst.XmmCmpRmR` instructions.
(decl xmm_cmp_rm_r (SseOpcode Xmm XmmMem) ProducesFlags)
(rule (xmm_cmp_rm_r opcode src1 src2)
(ProducesFlags.ProducesFlagsSideEffect
(MInst.XmmCmpRmR opcode src1 src2)))
;; Helper for creating `MInst.XmmCmpRmRVex` instructions.
(decl xmm_cmp_rm_r_vex (AvxOpcode Xmm XmmMem) ProducesFlags)
(rule (xmm_cmp_rm_r_vex opcode src1 src2)
(ProducesFlags.ProducesFlagsSideEffect
(MInst.XmmCmpRmRVex opcode src1 src2)))
;; Helper for creating floating-point comparison instructions (`UCOMIS[S|D]`).
(decl x64_ucomis (Type Xmm XmmMem) ProducesFlags)
(rule (x64_ucomis $F32 src1 src2)
(xmm_cmp_rm_r (SseOpcode.Ucomiss) src1 src2))
(rule (x64_ucomis $F64 src1 src2)
(xmm_cmp_rm_r (SseOpcode.Ucomisd) src1 src2))
(rule 1 (x64_ucomis $F32 src1 src2)
(if-let $true (use_avx))
(xmm_cmp_rm_r_vex (AvxOpcode.Vucomiss) src1 src2))
(rule 1 (x64_ucomis $F64 src1 src2)
(if-let $true (use_avx))
(xmm_cmp_rm_r_vex (AvxOpcode.Vucomisd) src1 src2))
;; Helper for creating `test` instructions.
(decl x64_test (OperandSize Gpr GprMemImm) ProducesFlags)
(rule (x64_test size src1 src2)
(cmp_rmi_r size (CmpOpcode.Test) src1 src2))
;; Helper for creating `ptest` instructions.
(decl x64_ptest (Xmm XmmMem) ProducesFlags)
(rule (x64_ptest src1 src2)
(xmm_cmp_rm_r (SseOpcode.Ptest) src1 src2))
(rule 1 (x64_ptest src1 src2)
(if-let $true (use_avx))
(xmm_cmp_rm_r_vex (AvxOpcode.Vptest) src1 src2))
;; Helper for creating `cmove` instructions. Note that these instructions do not
;; always result in a single emitted x86 instruction; e.g., XmmCmove uses jumps
;; to conditionally move the selected value into an XMM register.
(decl cmove (Type CC GprMem Gpr) ConsumesFlags)
(rule (cmove ty cc consequent alternative)
(let ((dst WritableGpr (temp_writable_gpr))
(size OperandSize (operand_size_of_type_32_64 ty)))
(ConsumesFlags.ConsumesFlagsReturnsReg
(MInst.Cmove size cc consequent alternative dst)
dst)))
(decl cmove_xmm (Type CC Xmm Xmm) ConsumesFlags)
(rule (cmove_xmm ty cc consequent alternative)
(let ((dst WritableXmm (temp_writable_xmm)))
(ConsumesFlags.ConsumesFlagsReturnsReg
(MInst.XmmCmove ty cc consequent alternative dst)
dst)))
;; Helper for creating `cmove` instructions directly from values. This allows us
;; to special-case the `I128` types and default to the `cmove` helper otherwise.
;; It also eliminates some `put_in_reg*` boilerplate in the lowering ISLE code.
(decl cmove_from_values (Type CC Value Value) ConsumesFlags)
(rule (cmove_from_values (is_multi_register_gpr_type $I128) cc consequent alternative)
(let ((cons ValueRegs consequent)
(alt ValueRegs alternative)
(dst1 WritableGpr (temp_writable_gpr))
(dst2 WritableGpr (temp_writable_gpr))
(size OperandSize (OperandSize.Size64))
(lower_cmove MInst (MInst.Cmove
size cc
(value_regs_get_gpr cons 0)
(value_regs_get_gpr alt 0)
dst1))
(upper_cmove MInst (MInst.Cmove
size cc
(value_regs_get_gpr cons 1)
(value_regs_get_gpr alt 1)
dst2)))
(ConsumesFlags.ConsumesFlagsTwiceReturnsValueRegs
lower_cmove
upper_cmove
(value_regs dst1 dst2))))
(rule (cmove_from_values (is_single_register_gpr_type ty) cc consequent alternative)
(cmove ty cc consequent alternative))
(rule (cmove_from_values (is_xmm_type ty) cc consequent alternative)
(cmove_xmm ty cc consequent alternative))
;; Helper for creating `cmove` instructions with the logical OR of multiple
;; flags. Note that these instructions will always result in more than one
;; emitted x86 instruction.
(decl cmove_or (Type CC CC GprMem Gpr) ConsumesFlags)
(rule (cmove_or ty cc1 cc2 consequent alternative)
(let ((dst WritableGpr (temp_writable_gpr))
(tmp WritableGpr (temp_writable_gpr))
(size OperandSize (operand_size_of_type_32_64 ty))
(cmove1 MInst (MInst.Cmove size cc1 consequent alternative tmp))
(cmove2 MInst (MInst.Cmove size cc2 consequent tmp dst)))
(ConsumesFlags.ConsumesFlagsTwiceReturnsValueRegs
cmove1
cmove2
dst)))
(decl cmove_or_xmm (Type CC CC Xmm Xmm) ConsumesFlags)
(rule (cmove_or_xmm ty cc1 cc2 consequent alternative)
(let ((dst WritableXmm (temp_writable_xmm))
(tmp WritableXmm (temp_writable_xmm))
(cmove1 MInst (MInst.XmmCmove ty cc1 consequent alternative tmp))
(cmove2 MInst (MInst.XmmCmove ty cc2 consequent tmp dst)))
(ConsumesFlags.ConsumesFlagsTwiceReturnsValueRegs
cmove1
cmove2
dst)))
;; Helper for creating `cmove_or` instructions directly from values. This allows
;; us to special-case the `I128` types and default to the `cmove_or` helper
;; otherwise.
(decl cmove_or_from_values (Type CC CC Value Value) ConsumesFlags)
(rule (cmove_or_from_values (is_multi_register_gpr_type $I128) cc1 cc2 consequent alternative)
(let ((cons ValueRegs consequent)
(alt ValueRegs alternative)
(dst1 WritableGpr (temp_writable_gpr))
(dst2 WritableGpr (temp_writable_gpr))
(tmp1 WritableGpr (temp_writable_gpr))
(tmp2 WritableGpr (temp_writable_gpr))
(size OperandSize (OperandSize.Size64))
(cmove1 MInst (MInst.Cmove size cc1 (value_regs_get_gpr cons 0) (value_regs_get_gpr alt 0) tmp1))
(cmove2 MInst (MInst.Cmove size cc2 (value_regs_get_gpr cons 0) tmp1 dst1))
(cmove3 MInst (MInst.Cmove size cc1 (value_regs_get_gpr cons 1) (value_regs_get_gpr alt 1) tmp2))
(cmove4 MInst (MInst.Cmove size cc2 (value_regs_get_gpr cons 1) tmp2 dst2)))
(ConsumesFlags.ConsumesFlagsFourTimesReturnsValueRegs
cmove1
cmove2
cmove3
cmove4
(value_regs dst1 dst2))))
(rule (cmove_or_from_values (is_single_register_gpr_type ty) cc1 cc2 consequent alternative)
(cmove_or ty cc1 cc2 consequent alternative))
(rule (cmove_or_from_values (is_xmm_type ty) cc1 cc2 consequent alternative)
(cmove_or_xmm ty cc1 cc2 consequent alternative))
;; Helper for creating `MInst.Setcc` instructions.
(decl x64_setcc (CC) ConsumesFlags)
(rule (x64_setcc cc)
(let ((dst WritableGpr (temp_writable_gpr)))
(ConsumesFlags.ConsumesFlagsReturnsReg
(MInst.Setcc cc dst)
dst)))
;; Helper for creating `MInst.Setcc` instructions, when the flags producer will
;; also return a value.
(decl x64_setcc_paired (CC) ConsumesFlags)
(rule (x64_setcc_paired cc)
(let ((dst WritableGpr (temp_writable_gpr)))
(ConsumesFlags.ConsumesFlagsReturnsResultWithProducer
(MInst.Setcc cc dst)
dst)))
;; Helper for creating `paddb` instructions.
(decl x64_paddb (Xmm XmmMem) Xmm)
(rule 0 (x64_paddb src1 src2)
(xmm_rm_r (SseOpcode.Paddb) src1 src2))
(rule 1 (x64_paddb src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpaddb) src1 src2))
;; Helper for creating `paddw` instructions.
(decl x64_paddw (Xmm XmmMem) Xmm)
(rule 0 (x64_paddw src1 src2)
(xmm_rm_r (SseOpcode.Paddw) src1 src2))
(rule 1 (x64_paddw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpaddw) src1 src2))
;; Helper for creating `paddd` instructions.
(decl x64_paddd (Xmm XmmMem) Xmm)
(rule 0 (x64_paddd src1 src2)
(xmm_rm_r (SseOpcode.Paddd) src1 src2))
(rule 1 (x64_paddd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpaddd) src1 src2))
;; Helper for creating `paddq` instructions.
(decl x64_paddq (Xmm XmmMem) Xmm)
(rule 0 (x64_paddq src1 src2)
(xmm_rm_r (SseOpcode.Paddq) src1 src2))
(rule 1 (x64_paddq src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpaddq) src1 src2))
;; Helper for creating `paddsb` instructions.
(decl x64_paddsb (Xmm XmmMem) Xmm)
(rule 0 (x64_paddsb src1 src2)
(xmm_rm_r (SseOpcode.Paddsb) src1 src2))
(rule 1 (x64_paddsb src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpaddsb) src1 src2))
;; Helper for creating `paddsw` instructions.
(decl x64_paddsw (Xmm XmmMem) Xmm)
(rule 0 (x64_paddsw src1 src2)
(xmm_rm_r (SseOpcode.Paddsw) src1 src2))
(rule 1 (x64_paddsw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpaddsw) src1 src2))
;; Helper for creating `phaddw` instructions.
(decl x64_phaddw (Xmm XmmMem) Xmm)
(rule 0 (x64_phaddw src1 src2)
(xmm_rm_r (SseOpcode.Phaddw) src1 src2))
(rule 1 (x64_phaddw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vphaddw) src1 src2))
;; Helper for creating `phaddd` instructions.
(decl x64_phaddd (Xmm XmmMem) Xmm)
(rule 0 (x64_phaddd src1 src2)
(xmm_rm_r (SseOpcode.Phaddd) src1 src2))
(rule 1 (x64_phaddd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vphaddd) src1 src2))
;; Helper for creating `paddusb` instructions.
(decl x64_paddusb (Xmm XmmMem) Xmm)
(rule 0 (x64_paddusb src1 src2)
(xmm_rm_r (SseOpcode.Paddusb) src1 src2))
(rule 1 (x64_paddusb src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpaddusb) src1 src2))
;; Helper for creating `paddusw` instructions.
(decl x64_paddusw (Xmm XmmMem) Xmm)
(rule 0 (x64_paddusw src1 src2)
(xmm_rm_r (SseOpcode.Paddusw) src1 src2))
(rule 1 (x64_paddusw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpaddusw) src1 src2))
;; Helper for creating `psubb` instructions.
(decl x64_psubb (Xmm XmmMem) Xmm)
(rule 0 (x64_psubb src1 src2)
(xmm_rm_r (SseOpcode.Psubb) src1 src2))
(rule 1 (x64_psubb src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpsubb) src1 src2))
;; Helper for creating `psubw` instructions.
(decl x64_psubw (Xmm XmmMem) Xmm)
(rule 0 (x64_psubw src1 src2)
(xmm_rm_r (SseOpcode.Psubw) src1 src2))
(rule 1 (x64_psubw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpsubw) src1 src2))
;; Helper for creating `psubd` instructions.
(decl x64_psubd (Xmm XmmMem) Xmm)
(rule 0 (x64_psubd src1 src2)
(xmm_rm_r (SseOpcode.Psubd) src1 src2))
(rule 1 (x64_psubd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpsubd) src1 src2))
;; Helper for creating `psubq` instructions.
(decl x64_psubq (Xmm XmmMem) Xmm)
(rule 0 (x64_psubq src1 src2)
(xmm_rm_r (SseOpcode.Psubq) src1 src2))
(rule 1 (x64_psubq src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpsubq) src1 src2))
;; Helper for creating `psubsb` instructions.
(decl x64_psubsb (Xmm XmmMem) Xmm)
(rule 0 (x64_psubsb src1 src2)
(xmm_rm_r (SseOpcode.Psubsb) src1 src2))
(rule 1 (x64_psubsb src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpsubsb) src1 src2))
;; Helper for creating `psubsw` instructions.
(decl x64_psubsw (Xmm XmmMem) Xmm)
(rule 0 (x64_psubsw src1 src2)
(xmm_rm_r (SseOpcode.Psubsw) src1 src2))
(rule 1 (x64_psubsw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpsubsw) src1 src2))
;; Helper for creating `psubusb` instructions.
(decl x64_psubusb (Xmm XmmMem) Xmm)
(rule 0 (x64_psubusb src1 src2)
(xmm_rm_r (SseOpcode.Psubusb) src1 src2))
(rule 1 (x64_psubusb src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpsubusb) src1 src2))
;; Helper for creating `psubusw` instructions.
(decl x64_psubusw (Xmm XmmMem) Xmm)
(rule 0 (x64_psubusw src1 src2)
(xmm_rm_r (SseOpcode.Psubusw) src1 src2))
(rule 1 (x64_psubusw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpsubusw) src1 src2))
;; Helper for creating `pavgb` instructions.
(decl x64_pavgb (Xmm XmmMem) Xmm)
(rule 0 (x64_pavgb src1 src2)
(xmm_rm_r (SseOpcode.Pavgb) src1 src2))
(rule 1 (x64_pavgb src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpavgb) src1 src2))
;; Helper for creating `pavgw` instructions.
(decl x64_pavgw (Xmm XmmMem) Xmm)
(rule 0 (x64_pavgw src1 src2)
(xmm_rm_r (SseOpcode.Pavgw) src1 src2))
(rule 1 (x64_pavgw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpavgw) src1 src2))
;; Helper for creating `pand` instructions.
(decl x64_pand (Xmm XmmMem) Xmm)
(rule 0 (x64_pand src1 src2)
(xmm_rm_r (SseOpcode.Pand) src1 src2))
(rule 1 (x64_pand src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpand) src1 src2))
;; Helper for creating `andps` instructions.
(decl x64_andps (Xmm XmmMem) Xmm)
(rule 0 (x64_andps src1 src2)
(xmm_rm_r (SseOpcode.Andps) src1 src2))
(rule 1 (x64_andps src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vandps) src1 src2))
;; Helper for creating `andpd` instructions.
(decl x64_andpd (Xmm XmmMem) Xmm)
(rule 0 (x64_andpd src1 src2)
(xmm_rm_r (SseOpcode.Andpd) src1 src2))
(rule 1 (x64_andpd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vandpd) src1 src2))
;; Helper for creating `por` instructions.
(decl x64_por (Xmm XmmMem) Xmm)
(rule 0 (x64_por src1 src2)
(xmm_rm_r (SseOpcode.Por) src1 src2))
(rule 1 (x64_por src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpor) src1 src2))
;; Helper for creating `orps` instructions.
(decl x64_orps (Xmm XmmMem) Xmm)
(rule 0 (x64_orps src1 src2)
(xmm_rm_r (SseOpcode.Orps) src1 src2))
(rule 1 (x64_orps src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vorps) src1 src2))
;; Helper for creating `orpd` instructions.
(decl x64_orpd (Xmm XmmMem) Xmm)
(rule 0 (x64_orpd src1 src2)
(xmm_rm_r (SseOpcode.Orpd) src1 src2))
(rule 1 (x64_orpd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vorpd) src1 src2))
;; Helper fxor creating `pxor` instructions.
(decl x64_pxor (Xmm XmmMem) Xmm)
(rule 0 (x64_pxor src1 src2)
(xmm_rm_r (SseOpcode.Pxor) src1 src2))
(rule 1 (x64_pxor src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpxor) src1 src2))
;; Helper fxor creating `xorps` instructions.
(decl x64_xorps (Xmm XmmMem) Xmm)
(rule 0 (x64_xorps src1 src2)
(xmm_rm_r (SseOpcode.Xorps) src1 src2))
(rule 1 (x64_xorps src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vxorps) src1 src2))
;; Helper fxor creating `xorpd` instructions.
(decl x64_xorpd (Xmm XmmMem) Xmm)
(rule 0 (x64_xorpd src1 src2)
(xmm_rm_r (SseOpcode.Xorpd) src1 src2))
(rule 1 (x64_xorpd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vxorpd) src1 src2))
;; Helper for creating `pmullw` instructions.
(decl x64_pmullw (Xmm XmmMem) Xmm)
(rule 0 (x64_pmullw src1 src2)
(xmm_rm_r (SseOpcode.Pmullw) src1 src2))
(rule 1 (x64_pmullw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpmullw) src1 src2))
;; Helper for creating `pmulld` instructions.
(decl x64_pmulld (Xmm XmmMem) Xmm)
(rule 0 (x64_pmulld src1 src2)
(xmm_rm_r (SseOpcode.Pmulld) src1 src2))
(rule 1 (x64_pmulld src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpmulld) src1 src2))
;; Helper for creating `pmulhw` instructions.
(decl x64_pmulhw (Xmm XmmMem) Xmm)
(rule 0 (x64_pmulhw src1 src2)
(xmm_rm_r (SseOpcode.Pmulhw) src1 src2))
(rule 1 (x64_pmulhw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpmulhw) src1 src2))
;; Helper for creating `pmulhrsw` instructions.
(decl x64_pmulhrsw (Xmm XmmMem) Xmm)
(rule 0 (x64_pmulhrsw src1 src2)
(xmm_rm_r (SseOpcode.Pmulhrsw) src1 src2))
(rule 1 (x64_pmulhrsw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpmulhrsw) src1 src2))
;; Helper for creating `pmulhuw` instructions.
(decl x64_pmulhuw (Xmm XmmMem) Xmm)
(rule 0 (x64_pmulhuw src1 src2)
(xmm_rm_r (SseOpcode.Pmulhuw) src1 src2))
(rule 1 (x64_pmulhuw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpmulhuw) src1 src2))
;; Helper for creating `pmuldq` instructions.
(decl x64_pmuldq (Xmm XmmMem) Xmm)
(rule 0 (x64_pmuldq src1 src2)
(xmm_rm_r (SseOpcode.Pmuldq) src1 src2))
(rule 1 (x64_pmuldq src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpmuldq) src1 src2))
;; Helper for creating `pmuludq` instructions.
(decl x64_pmuludq (Xmm XmmMem) Xmm)
(rule 0 (x64_pmuludq src1 src2)
(xmm_rm_r (SseOpcode.Pmuludq) src1 src2))
(rule 1 (x64_pmuludq src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpmuludq) src1 src2))
;; Helper for creating `punpckhwd` instructions.
(decl x64_punpckhwd (Xmm XmmMem) Xmm)
(rule 0 (x64_punpckhwd src1 src2)
(xmm_rm_r (SseOpcode.Punpckhwd) src1 src2))
(rule 1 (x64_punpckhwd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpunpckhwd) src1 src2))
;; Helper for creating `punpcklwd` instructions.
(decl x64_punpcklwd (Xmm XmmMem) Xmm)
(rule 0 (x64_punpcklwd src1 src2)
(xmm_rm_r (SseOpcode.Punpcklwd) src1 src2))
(rule 1 (x64_punpcklwd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpunpcklwd) src1 src2))
;; Helper for creating `punpckldq` instructions.
(decl x64_punpckldq (Xmm XmmMem) Xmm)
(rule 0 (x64_punpckldq src1 src2)
(xmm_rm_r (SseOpcode.Punpckldq) src1 src2))
(rule 1 (x64_punpckldq src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpunpckldq) src1 src2))
;; Helper for creating `punpckhdq` instructions.
(decl x64_punpckhdq (Xmm XmmMem) Xmm)
(rule 0 (x64_punpckhdq src1 src2)
(xmm_rm_r (SseOpcode.Punpckhdq) src1 src2))
(rule 1 (x64_punpckhdq src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpunpckhdq) src1 src2))
;; Helper for creating `punpcklqdq` instructions.
(decl x64_punpcklqdq (Xmm XmmMem) Xmm)
(rule 0 (x64_punpcklqdq src1 src2)
(xmm_rm_r (SseOpcode.Punpcklqdq) src1 src2))
(rule 1 (x64_punpcklqdq src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpunpcklqdq) src1 src2))
;; Helper for creating `punpckhqdq` instructions.
(decl x64_punpckhqdq (Xmm XmmMem) Xmm)
(rule 0 (x64_punpckhqdq src1 src2)
(xmm_rm_r (SseOpcode.Punpckhqdq) src1 src2))
(rule 1 (x64_punpckhqdq src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpunpckhqdq) src1 src2))
;; Helper for creating `unpcklps` instructions.
(decl x64_unpcklps (Xmm XmmMem) Xmm)
(rule 0 (x64_unpcklps src1 src2)
(xmm_rm_r (SseOpcode.Unpcklps) src1 src2))
(rule 1 (x64_unpcklps src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vunpcklps) src1 src2))
;; Helper for creating `unpcklpd` instructions.
(decl x64_unpcklpd (Xmm XmmMem) Xmm)
(rule 0 (x64_unpcklpd src1 src2)
(xmm_rm_r (SseOpcode.Unpcklpd) src1 src2))
(rule 1 (x64_unpcklpd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vunpcklpd) src1 src2))
;; Helper for creating `unpckhps` instructions.
(decl x64_unpckhps (Xmm XmmMem) Xmm)
(rule 0 (x64_unpckhps src1 src2)
(xmm_rm_r (SseOpcode.Unpckhps) src1 src2))
(rule 1 (x64_unpckhps src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vunpckhps) src1 src2))
;; Helper for creating `andnps` instructions.
(decl x64_andnps (Xmm XmmMem) Xmm)
(rule 0 (x64_andnps src1 src2)
(xmm_rm_r (SseOpcode.Andnps) src1 src2))
(rule 1 (x64_andnps src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vandnps) src1 src2))
;; Helper for creating `andnpd` instructions.
(decl x64_andnpd (Xmm XmmMem) Xmm)
(rule 0 (x64_andnpd src1 src2)
(xmm_rm_r (SseOpcode.Andnpd) src1 src2))
(rule 1 (x64_andnpd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vandnpd) src1 src2))
;; Helper for creating `pandn` instructions.
(decl x64_pandn (Xmm XmmMem) Xmm)
(rule 0 (x64_pandn src1 src2)
(xmm_rm_r (SseOpcode.Pandn) src1 src2))
(rule 1 (x64_pandn src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpandn) src1 src2))
;; Helper for creating `addss` instructions.
(decl x64_addss (Xmm XmmMem) Xmm)
(rule (x64_addss src1 src2)
(xmm_rm_r_unaligned (SseOpcode.Addss) src1 src2))
(rule 1 (x64_addss src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vaddss) src1 src2))
;; Helper for creating `addsd` instructions.
(decl x64_addsd (Xmm XmmMem) Xmm)
(rule (x64_addsd src1 src2)
(xmm_rm_r_unaligned (SseOpcode.Addsd) src1 src2))
(rule 1 (x64_addsd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vaddsd) src1 src2))
;; Helper for creating `addps` instructions.
(decl x64_addps (Xmm XmmMem) Xmm)
(rule 0 (x64_addps src1 src2)
(xmm_rm_r (SseOpcode.Addps) src1 src2))
(rule 1 (x64_addps src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vaddps) src1 src2))
;; Helper for creating `addpd` instructions.
(decl x64_addpd (Xmm XmmMem) Xmm)
(rule 0 (x64_addpd src1 src2)
(xmm_rm_r (SseOpcode.Addpd) src1 src2))
(rule 1 (x64_addpd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vaddpd) src1 src2))
;; Helper for creating `subss` instructions.
(decl x64_subss (Xmm XmmMem) Xmm)
(rule (x64_subss src1 src2)
(xmm_rm_r_unaligned (SseOpcode.Subss) src1 src2))
(rule 1 (x64_subss src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vsubss) src1 src2))
;; Helper for creating `subsd` instructions.
(decl x64_subsd (Xmm XmmMem) Xmm)
(rule (x64_subsd src1 src2)
(xmm_rm_r_unaligned (SseOpcode.Subsd) src1 src2))
(rule 1 (x64_subsd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vsubsd) src1 src2))
;; Helper for creating `subps` instructions.
(decl x64_subps (Xmm XmmMem) Xmm)
(rule 0 (x64_subps src1 src2)
(xmm_rm_r (SseOpcode.Subps) src1 src2))
(rule 1 (x64_subps src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vsubps) src1 src2))
;; Helper for creating `subpd` instructions.
(decl x64_subpd (Xmm XmmMem) Xmm)
(rule 0 (x64_subpd src1 src2)
(xmm_rm_r (SseOpcode.Subpd) src1 src2))
(rule 1 (x64_subpd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vsubpd) src1 src2))
;; Helper for creating `mulss` instructions.
(decl x64_mulss (Xmm XmmMem) Xmm)
(rule (x64_mulss src1 src2)
(xmm_rm_r_unaligned (SseOpcode.Mulss) src1 src2))
(rule 1 (x64_mulss src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vmulss) src1 src2))
;; Helper for creating `mulsd` instructions.
(decl x64_mulsd (Xmm XmmMem) Xmm)
(rule (x64_mulsd src1 src2)
(xmm_rm_r_unaligned (SseOpcode.Mulsd) src1 src2))
(rule 1 (x64_mulsd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vmulsd) src1 src2))
;; Helper for creating `mulps` instructions.
(decl x64_mulps (Xmm XmmMem) Xmm)
(rule 0 (x64_mulps src1 src2)
(xmm_rm_r (SseOpcode.Mulps) src1 src2))
(rule 1 (x64_mulps src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vmulps) src1 src2))
;; Helper for creating `mulpd` instructions.
(decl x64_mulpd (Xmm XmmMem) Xmm)
(rule (x64_mulpd src1 src2)
(xmm_rm_r (SseOpcode.Mulpd) src1 src2))
(rule 1 (x64_mulpd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vmulpd) src1 src2))
;; Helper for creating `divss` instructions.
(decl x64_divss (Xmm XmmMem) Xmm)
(rule (x64_divss src1 src2)
(xmm_rm_r_unaligned (SseOpcode.Divss) src1 src2))
(rule 1 (x64_divss src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vdivss) src1 src2))
;; Helper for creating `divsd` instructions.
(decl x64_divsd (Xmm XmmMem) Xmm)
(rule (x64_divsd src1 src2)
(xmm_rm_r_unaligned (SseOpcode.Divsd) src1 src2))
(rule 1 (x64_divsd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vdivsd) src1 src2))
;; Helper for creating `divps` instructions.
(decl x64_divps (Xmm XmmMem) Xmm)
(rule 0 (x64_divps src1 src2)
(xmm_rm_r (SseOpcode.Divps) src1 src2))
(rule 1 (x64_divps src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vdivps) src1 src2))
;; Helper for creating `divpd` instructions.
(decl x64_divpd (Xmm XmmMem) Xmm)
(rule 0 (x64_divpd src1 src2)
(xmm_rm_r (SseOpcode.Divpd) src1 src2))
(rule 1 (x64_divpd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vdivpd) src1 src2))
;; Helper for creating `blendvpd` instructions.
(decl x64_blendvpd (Xmm XmmMem Xmm) Xmm)
(rule 0 (x64_blendvpd src1 src2 mask)
(xmm_rm_r_blend (SseOpcode.Blendvpd) src1 src2 mask))
(rule 1 (x64_blendvpd src1 src2 mask)
(if-let $true (use_avx))
(xmm_rmr_blend_vex (AvxOpcode.Vblendvpd) src1 src2 mask))
;; Helper for creating `blendvps` instructions.
(decl x64_blendvps (Xmm XmmMem Xmm) Xmm)
(rule 0 (x64_blendvps src1 src2 mask)
(xmm_rm_r_blend (SseOpcode.Blendvps) src1 src2 mask))
(rule 1 (x64_blendvps src1 src2 mask)
(if-let $true (use_avx))
(xmm_rmr_blend_vex (AvxOpcode.Vblendvps) src1 src2 mask))
;; Helper for creating `pblendvb` instructions.
(decl x64_pblendvb (Xmm XmmMem Xmm) Xmm)
(rule 0 (x64_pblendvb src1 src2 mask)
(xmm_rm_r_blend (SseOpcode.Pblendvb) src1 src2 mask))
(rule 1 (x64_pblendvb src1 src2 mask)
(if-let $true (use_avx))
(xmm_rmr_blend_vex (AvxOpcode.Vpblendvb) src1 src2 mask))
;; Helper for creating `pblendw` instructions.
(decl x64_pblendw (Xmm XmmMem u8) Xmm)
(rule 0 (x64_pblendw src1 src2 imm)
(xmm_rm_r_imm (SseOpcode.Pblendw) src1 src2 imm (OperandSize.Size32)))
(rule 1 (x64_pblendw src1 src2 imm)
(if-let $true (use_avx))
(xmm_rmr_imm_vex (AvxOpcode.Vpblendw) src1 src2 imm))
;; Helper for creating `movsd`/`movss` instructions which create a new vector
;; register where the upper bits are from the first operand and the low
;; bits are from the second operand.
;;
;; Note that the second argument here is specifically `Xmm` instead of `XmmMem`
;; because there is no encoding of a 3-operand form of `movsd` and otherwise
;; when used as a load instruction it wipes out the entire destination register
;; which defeats the purpose of this being a 2-operand instruction.
(decl x64_movsd_regmove (Xmm Xmm) Xmm)
(rule (x64_movsd_regmove src1 src2)
(xmm_rm_r_unaligned (SseOpcode.Movsd) src1 src2))
(rule 1 (x64_movsd_regmove src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vmovsd) src1 src2))
(decl x64_movss_regmove (Xmm Xmm) Xmm)
(rule (x64_movss_regmove src1 src2)
(xmm_rm_r_unaligned (SseOpcode.Movss) src1 src2))
(rule 1 (x64_movss_regmove src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vmovss) src1 src2))
;; Helper for creating `movlhps` instructions.
(decl x64_movlhps (Xmm XmmMem) Xmm)
(rule 0 (x64_movlhps src1 src2)
(xmm_rm_r (SseOpcode.Movlhps) src1 src2))
(rule 1 (x64_movlhps src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vmovlhps) src1 src2))
;; Helpers for creating `pmaxs*` instructions.
(decl x64_pmaxs (Type Xmm XmmMem) Xmm)
(rule (x64_pmaxs $I8X16 x y) (x64_pmaxsb x y))
(rule (x64_pmaxs $I16X8 x y) (x64_pmaxsw x y))
(rule (x64_pmaxs $I32X4 x y) (x64_pmaxsd x y))
;; No $I64X2 version (PMAXSQ) in SSE4.1.
(decl x64_pmaxsb (Xmm XmmMem) Xmm)
(rule 0 (x64_pmaxsb src1 src2) (xmm_rm_r (SseOpcode.Pmaxsb) src1 src2))
(rule 1 (x64_pmaxsb src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpmaxsb) src1 src2))
(decl x64_pmaxsw (Xmm XmmMem) Xmm)
(rule 0 (x64_pmaxsw src1 src2) (xmm_rm_r (SseOpcode.Pmaxsw) src1 src2))
(rule 1 (x64_pmaxsw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpmaxsw) src1 src2))
(decl x64_pmaxsd (Xmm XmmMem) Xmm)
(rule 0 (x64_pmaxsd src1 src2) (xmm_rm_r (SseOpcode.Pmaxsd) src1 src2))
(rule 1 (x64_pmaxsd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpmaxsd) src1 src2))
;; Helpers for creating `pmins*` instructions.
(decl x64_pmins (Type Xmm XmmMem) Xmm)
(rule (x64_pmins $I8X16 x y) (x64_pminsb x y))
(rule (x64_pmins $I16X8 x y) (x64_pminsw x y))
(rule (x64_pmins $I32X4 x y) (x64_pminsd x y))
;; No $I64X2 version (PMINSQ) in SSE4.1.
(decl x64_pminsb (Xmm XmmMem) Xmm)
(rule 0 (x64_pminsb src1 src2) (xmm_rm_r (SseOpcode.Pminsb) src1 src2))
(rule 1 (x64_pminsb src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpminsb) src1 src2))
(decl x64_pminsw (Xmm XmmMem) Xmm)
(rule 0 (x64_pminsw src1 src2) (xmm_rm_r (SseOpcode.Pminsw) src1 src2))
(rule 1 (x64_pminsw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpminsw) src1 src2))
(decl x64_pminsd (Xmm XmmMem) Xmm)
(rule 0 (x64_pminsd src1 src2) (xmm_rm_r (SseOpcode.Pminsd) src1 src2))
(rule 1 (x64_pminsd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpminsd) src1 src2))
;; Helpers for creating `pmaxu*` instructions.
(decl x64_pmaxu (Type Xmm XmmMem) Xmm)
(rule (x64_pmaxu $I8X16 x y) (x64_pmaxub x y))
(rule (x64_pmaxu $I16X8 x y) (x64_pmaxuw x y))
(rule (x64_pmaxu $I32X4 x y) (x64_pmaxud x y))
;; No $I64X2 version (PMAXUQ) in SSE4.1.
(decl x64_pmaxub (Xmm XmmMem) Xmm)
(rule 0 (x64_pmaxub src1 src2) (xmm_rm_r (SseOpcode.Pmaxub) src1 src2))
(rule 1 (x64_pmaxub src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpmaxub) src1 src2))
(decl x64_pmaxuw (Xmm XmmMem) Xmm)
(rule 0 (x64_pmaxuw src1 src2) (xmm_rm_r (SseOpcode.Pmaxuw) src1 src2))
(rule 1 (x64_pmaxuw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpmaxuw) src1 src2))
(decl x64_pmaxud (Xmm XmmMem) Xmm)
(rule 0 (x64_pmaxud src1 src2) (xmm_rm_r (SseOpcode.Pmaxud) src1 src2))
(rule 1 (x64_pmaxud src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpmaxud) src1 src2))
;; Helper for creating `pminu*` instructions.
(decl x64_pminu (Type Xmm XmmMem) Xmm)
(rule (x64_pminu $I8X16 x y) (x64_pminub x y))
(rule (x64_pminu $I16X8 x y) (x64_pminuw x y))
(rule (x64_pminu $I32X4 x y) (x64_pminud x y))
;; No $I64X2 version (PMINUQ) in SSE4.1.
(decl x64_pminub (Xmm XmmMem) Xmm)
(rule 0 (x64_pminub src1 src2) (xmm_rm_r (SseOpcode.Pminub) src1 src2))
(rule 1 (x64_pminub src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpminub) src1 src2))
(decl x64_pminuw (Xmm XmmMem) Xmm)
(rule 0 (x64_pminuw src1 src2) (xmm_rm_r (SseOpcode.Pminuw) src1 src2))
(rule 1 (x64_pminuw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpminuw) src1 src2))
(decl x64_pminud (Xmm XmmMem) Xmm)
(rule 0 (x64_pminud src1 src2) (xmm_rm_r (SseOpcode.Pminud) src1 src2))
(rule 1 (x64_pminud src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpminud) src1 src2))
;; Helper for creating `punpcklbw` instructions.
(decl x64_punpcklbw (Xmm XmmMem) Xmm)
(rule 0 (x64_punpcklbw src1 src2)
(xmm_rm_r (SseOpcode.Punpcklbw) src1 src2))
(rule 1 (x64_punpcklbw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpunpcklbw) src1 src2))
;; Helper for creating `punpckhbw` instructions.
(decl x64_punpckhbw (Xmm XmmMem) Xmm)
(rule 0 (x64_punpckhbw src1 src2)
(xmm_rm_r (SseOpcode.Punpckhbw) src1 src2))
(rule 1 (x64_punpckhbw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpunpckhbw) src1 src2))
;; Helper for creating `packsswb` instructions.
(decl x64_packsswb (Xmm XmmMem) Xmm)
(rule 0 (x64_packsswb src1 src2)
(xmm_rm_r (SseOpcode.Packsswb) src1 src2))
(rule 1 (x64_packsswb src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpacksswb) src1 src2))
;; Helper for creating `packssdw` instructions.
(decl x64_packssdw (Xmm XmmMem) Xmm)
(rule 0 (x64_packssdw src1 src2)
(xmm_rm_r (SseOpcode.Packssdw) src1 src2))
(rule 1 (x64_packssdw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpackssdw) src1 src2))
;; Helper for creating `packuswb` instructions.
(decl x64_packuswb (Xmm XmmMem) Xmm)
(rule 0 (x64_packuswb src1 src2)
(xmm_rm_r (SseOpcode.Packuswb) src1 src2))
(rule 1 (x64_packuswb src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpackuswb) src1 src2))
;; Helper for creating `packusdw` instructions.
(decl x64_packusdw (Xmm XmmMem) Xmm)
(rule 0 (x64_packusdw src1 src2)
(xmm_rm_r (SseOpcode.Packusdw) src1 src2))
(rule 1 (x64_packusdw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpackusdw) src1 src2))
;; Helper for creating `palignr` instructions.
(decl x64_palignr (Xmm XmmMem u8) Xmm)
(rule 0 (x64_palignr src1 src2 imm)
(xmm_rm_r_imm (SseOpcode.Palignr)
src1
src2
imm
(OperandSize.Size32)))
(rule 1 (x64_palignr src1 src2 imm)
(if-let $true (use_avx))
(xmm_rmr_imm_vex (AvxOpcode.Vpalignr) src1 src2 imm))
;; Helpers for creating `cmpp*` instructions.
(decl x64_cmpp (Type Xmm XmmMem FcmpImm) Xmm)
(rule (x64_cmpp $F32X4 x y imm) (x64_cmpps x y imm))
(rule (x64_cmpp $F64X2 x y imm) (x64_cmppd x y imm))
(decl x64_cmpps (Xmm XmmMem FcmpImm) Xmm)
(rule 0 (x64_cmpps src1 src2 imm)
(xmm_rm_r_imm (SseOpcode.Cmpps)
src1
src2
(encode_fcmp_imm imm)
(OperandSize.Size32)))
(rule 1 (x64_cmpps src1 src2 imm)
(if-let $true (use_avx))
(xmm_rmr_imm_vex (AvxOpcode.Vcmpps)
src1
src2
(encode_fcmp_imm imm)))
;; Note that `Size32` is intentional despite this being used for 64-bit
;; operations, since this presumably induces the correct encoding of the
;; instruction.
(decl x64_cmppd (Xmm XmmMem FcmpImm) Xmm)
(rule 0 (x64_cmppd src1 src2 imm)
(xmm_rm_r_imm (SseOpcode.Cmppd)
src1
src2
(encode_fcmp_imm imm)
(OperandSize.Size32)))
(rule 1 (x64_cmppd src1 src2 imm)
(if-let $true (use_avx))
(xmm_rmr_imm_vex (AvxOpcode.Vcmppd)
src1
src2
(encode_fcmp_imm imm)))
;; Helper for creating `pinsrb` instructions.
(decl x64_pinsrb (Xmm GprMem u8) Xmm)
(rule 0 (x64_pinsrb src1 src2 lane)
(xmm_rm_r_imm (SseOpcode.Pinsrb)
src1
src2
lane
(OperandSize.Size32)))
(rule 1 (x64_pinsrb src1 src2 lane)
(if-let $true (use_avx))
(xmm_vex_pinsr (AvxOpcode.Vpinsrb) src1 src2 lane))
;; Helper for creating `pinsrw` instructions.
(decl x64_pinsrw (Xmm GprMem u8) Xmm)
(rule 0 (x64_pinsrw src1 src2 lane)
(xmm_rm_r_imm (SseOpcode.Pinsrw)
src1
src2
lane
(OperandSize.Size32)))
(rule 1 (x64_pinsrw src1 src2 lane)
(if-let $true (use_avx))
(xmm_vex_pinsr (AvxOpcode.Vpinsrw) src1 src2 lane))
;; Helper for creating `pinsrd` instructions.
(decl x64_pinsrd (Xmm GprMem u8) Xmm)
(rule 0 (x64_pinsrd src1 src2 lane)
(xmm_rm_r_imm (SseOpcode.Pinsrd)
src1
src2
lane
(OperandSize.Size32)))
(rule 1 (x64_pinsrd src1 src2 lane)
(if-let $true (use_avx))
(xmm_vex_pinsr (AvxOpcode.Vpinsrd) src1 src2 lane))
;; Helper for creating `pinsrq` instructions.
(decl x64_pinsrq (Xmm GprMem u8) Xmm)
(rule (x64_pinsrq src1 src2 lane)
(xmm_rm_r_imm (SseOpcode.Pinsrd)
src1
src2
lane
(OperandSize.Size64)))
(rule 1 (x64_pinsrq src1 src2 lane)
(if-let $true (use_avx))
(xmm_vex_pinsr (AvxOpcode.Vpinsrq) src1 src2 lane))
;; Helper for creating `roundss` instructions.
;;
;; NB: the non-AVX variant of this instruction does not require that the operand
;; is aligned, but the instruction variant used here requires it to be aligned.
;; This means that if the operand here points to memory then we'll eagerly load
;; it, but the eager load will load too much (the full register width of 16
;; bytes). To fix this a `put_xmm_mem_in_xmm` helper is used to force the
;; operand to be a register where the load is done with the appropriate type if
;; it's in memory.
;;
;; Some more discussion of this can be found on #8112. Ideally this would use
;; a variant that allows an unaligned `XmmMem` in the instruction variant.
;; Either that or the auto-conversion to aligned memory is removed and/or starts
;; to require a type.
;;
;; Also note that the argument here isn't changed to `Xmm` instead of `XmmMem`
;; because the AVX variant, when available, doesn't need alignment and can
;; pass through the `src1` argument as-is.
(decl x64_roundss (XmmMem RoundImm) Xmm)
(rule (x64_roundss src1 round)
(xmm_unary_rm_r_imm (SseOpcode.Roundss) (put_xmm_mem_in_xmm $F32 src1) (encode_round_imm round)))
(rule 1 (x64_roundss src1 round)
(if-let $true (use_avx))
(xmm_unary_rm_r_imm_vex (AvxOpcode.Vroundss) src1 (encode_round_imm round)))
;; Helper for creating `roundsd` instructions.
;;
;; NB: see `x64_roundss` above for `put_xmm_mem_in_xmm` in call.
(decl x64_roundsd (XmmMem RoundImm) Xmm)
(rule (x64_roundsd src1 round)
(xmm_unary_rm_r_imm (SseOpcode.Roundsd) (put_xmm_mem_in_xmm $F64 src1) (encode_round_imm round)))
(rule 1 (x64_roundsd src1 round)
(if-let $true (use_avx))
(xmm_unary_rm_r_imm_vex (AvxOpcode.Vroundsd) src1 (encode_round_imm round)))
;; Helper for forcing an `XmmMem` to be placed into an `Xmm` register.
;;
;; If it's already in a register it stays there, otherwise it turns into a
;; load instruction with the destination register as output.
(decl put_xmm_mem_in_xmm (Type XmmMem) Xmm)
(rule (put_xmm_mem_in_xmm ty xmm_mem)
(if-let (RegMem.Reg r) (xmm_mem_to_reg_mem xmm_mem))
(xmm_new r))
(rule (put_xmm_mem_in_xmm ty xmm_mem)
(if-let (RegMem.Mem amode) (xmm_mem_to_reg_mem xmm_mem))
(x64_load ty amode (ExtKind.None)))
;; Helper for creating `roundps` instructions.
(decl x64_roundps (XmmMem RoundImm) Xmm)
(rule (x64_roundps src1 round)
(xmm_unary_rm_r_imm (SseOpcode.Roundps) src1 (encode_round_imm round)))
(rule 1 (x64_roundps src1 round)
(if-let $true (use_avx))
(xmm_unary_rm_r_imm_vex (AvxOpcode.Vroundps) src1 (encode_round_imm round)))
;; Helper for creating `roundpd` instructions.
(decl x64_roundpd (XmmMem RoundImm) Xmm)
(rule (x64_roundpd src1 round)
(xmm_unary_rm_r_imm (SseOpcode.Roundpd) src1 (encode_round_imm round)))
(rule 1 (x64_roundpd src1 round)
(if-let $true (use_avx))
(xmm_unary_rm_r_imm_vex (AvxOpcode.Vroundpd) src1 (encode_round_imm round)))
;; Helper for creating `pmaddwd` instructions.
(decl x64_pmaddwd (Xmm XmmMem) Xmm)
(rule 0 (x64_pmaddwd src1 src2)
(xmm_rm_r (SseOpcode.Pmaddwd) src1 src2))
(rule 1 (x64_pmaddwd src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpmaddwd) src1 src2))
(decl x64_pmaddubsw (Xmm XmmMem) Xmm)
(rule 0 (x64_pmaddubsw src1 src2)
(xmm_rm_r (SseOpcode.Pmaddubsw) src1 src2))
(rule 1 (x64_pmaddubsw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpmaddubsw) src1 src2))
;; Helper for creating `insertps` instructions.
(decl x64_insertps (Xmm XmmMem u8) Xmm)
(rule 0 (x64_insertps src1 src2 lane)
(xmm_rm_r_imm (SseOpcode.Insertps)
src1
src2
lane
(OperandSize.Size32)))
(rule 1 (x64_insertps src1 src2 lane)
(if-let $true (use_avx))
(xmm_rmr_imm_vex (AvxOpcode.Vinsertps) src1 src2 lane))
;; Helper for creating `pshufd` instructions.
(decl x64_pshufd (XmmMem u8) Xmm)
(rule (x64_pshufd src imm)
(xmm_unary_rm_r_imm (SseOpcode.Pshufd) src imm))
(rule 1 (x64_pshufd src imm)
(if-let $true (use_avx))
(xmm_unary_rm_r_imm_vex (AvxOpcode.Vpshufd) src imm))
;; Helper for creating `pshufb` instructions.
(decl x64_pshufb (Xmm XmmMem) Xmm)
(rule 0 (x64_pshufb src1 src2)
(xmm_rm_r (SseOpcode.Pshufb) src1 src2))
(rule 1 (x64_pshufb src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpshufb) src1 src2))
;; Helper for creating `pshuflw` instructions.
(decl x64_pshuflw (XmmMem u8) Xmm)
(rule (x64_pshuflw src imm)
(xmm_unary_rm_r_imm (SseOpcode.Pshuflw) src imm))
(rule 1 (x64_pshuflw src imm)
(if-let $true (use_avx))
(xmm_unary_rm_r_imm_vex (AvxOpcode.Vpshuflw) src imm))
;; Helper for creating `pshufhw` instructions.
(decl x64_pshufhw (XmmMem u8) Xmm)
(rule (x64_pshufhw src imm)
(xmm_unary_rm_r_imm (SseOpcode.Pshufhw) src imm))
(rule 1 (x64_pshufhw src imm)
(if-let $true (use_avx))
(xmm_unary_rm_r_imm_vex (AvxOpcode.Vpshufhw) src imm))
;; Helper for creating `shufps` instructions.
(decl x64_shufps (Xmm XmmMem u8) Xmm)
(rule 0 (x64_shufps src1 src2 byte)
(xmm_rm_r_imm (SseOpcode.Shufps)
src1
src2
byte
(OperandSize.Size32)))
(rule 1 (x64_shufps src1 src2 byte)
(if-let $true (use_avx))
(xmm_rmr_imm_vex (AvxOpcode.Vshufps) src1 src2 byte))
;; Helper for creating `pabsb` instructions.
(decl x64_pabsb (XmmMem) Xmm)
(rule (x64_pabsb src)
(xmm_unary_rm_r (SseOpcode.Pabsb) src))
(rule 1 (x64_pabsb src)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vpabsb) src))
;; Helper for creating `pabsw` instructions.
(decl x64_pabsw (XmmMem) Xmm)
(rule (x64_pabsw src)
(xmm_unary_rm_r (SseOpcode.Pabsw) src))
(rule 1 (x64_pabsw src)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vpabsw) src))
;; Helper for creating `pabsd` instructions.
(decl x64_pabsd (XmmMem) Xmm)
(rule (x64_pabsd src)
(xmm_unary_rm_r (SseOpcode.Pabsd) src))
(rule 1 (x64_pabsd src)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vpabsd) src))
;; Helper for creating `vcvtudq2ps` instructions.
(decl x64_vcvtudq2ps (XmmMem) Xmm)
(rule (x64_vcvtudq2ps src)
(xmm_unary_rm_r_evex (Avx512Opcode.Vcvtudq2ps) src))
;; Helper for creating `vpabsq` instructions.
(decl x64_vpabsq (XmmMem) Xmm)
(rule (x64_vpabsq src)
(xmm_unary_rm_r_evex (Avx512Opcode.Vpabsq) src))
;; Helper for creating `vpopcntb` instructions.
(decl x64_vpopcntb (XmmMem) Xmm)
(rule (x64_vpopcntb src)
(xmm_unary_rm_r_evex (Avx512Opcode.Vpopcntb) src))
;; Helper for creating `vpmullq` instructions.
;;
;; Requires AVX-512 vl and dq.
(decl x64_vpmullq (Xmm XmmMem) Xmm)
(rule (x64_vpmullq src1 src2)
(xmm_rm_r_evex (Avx512Opcode.Vpmullq)
src1
src2))
;; Helper for creating `vpermi2b` instructions.
;;
;; Requires AVX-512 vl and vbmi extensions.
(decl x64_vpermi2b (Xmm Xmm XmmMem) Xmm)
(rule (x64_vpermi2b src1 src2 src3)
(let ((dst WritableXmm (temp_writable_xmm))
(_ Unit (emit (MInst.XmmRmREvex3 (Avx512Opcode.Vpermi2b)
src1
src2
src3
dst))))
dst))
;; Helper for creating `psllw` instructions.
(decl x64_psllw (Xmm XmmMemImm) Xmm)
(rule 0 (x64_psllw src1 src2)
(xmm_rmi_xmm (SseOpcode.Psllw) src1 src2))
(rule 1 (x64_psllw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpsllw) src1 src2))
;; Helper for creating `pslld` instructions.
(decl x64_pslld (Xmm XmmMemImm) Xmm)
(rule 0 (x64_pslld src1 src2)
(xmm_rmi_xmm (SseOpcode.Pslld) src1 src2))
(rule 1 (x64_pslld src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpslld) src1 src2))
;; Helper for creating `psllq` instructions.
(decl x64_psllq (Xmm XmmMemImm) Xmm)
(rule 0 (x64_psllq src1 src2)
(xmm_rmi_xmm (SseOpcode.Psllq) src1 src2))
(rule 1 (x64_psllq src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpsllq) src1 src2))
;; Helper for creating `psrlw` instructions.
(decl x64_psrlw (Xmm XmmMemImm) Xmm)
(rule 0 (x64_psrlw src1 src2)
(xmm_rmi_xmm (SseOpcode.Psrlw) src1 src2))
(rule 1 (x64_psrlw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpsrlw) src1 src2))
;; Helper for creating `psrld` instructions.
(decl x64_psrld (Xmm XmmMemImm) Xmm)
(rule 0 (x64_psrld src1 src2)
(xmm_rmi_xmm (SseOpcode.Psrld) src1 src2))
(rule 1 (x64_psrld src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpsrld) src1 src2))
;; Helper for creating `psrlq` instructions.
(decl x64_psrlq (Xmm XmmMemImm) Xmm)
(rule 0 (x64_psrlq src1 src2)
(xmm_rmi_xmm (SseOpcode.Psrlq) src1 src2))
(rule 1 (x64_psrlq src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpsrlq) src1 src2))
;; Helper for creating `psraw` instructions.
(decl x64_psraw (Xmm XmmMemImm) Xmm)
(rule 0 (x64_psraw src1 src2)
(xmm_rmi_xmm (SseOpcode.Psraw) src1 src2))
(rule 1 (x64_psraw src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpsraw) src1 src2))
;; Helper for creating `psrad` instructions.
(decl x64_psrad (Xmm XmmMemImm) Xmm)
(rule 0 (x64_psrad src1 src2)
(xmm_rmi_xmm (SseOpcode.Psrad) src1 src2))
(rule 1 (x64_psrad src1 src2)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpsrad) src1 src2))
;; Helper for creating `vpsraq` instructions.
(decl x64_vpsraq (Xmm XmmMem) Xmm)
(rule (x64_vpsraq src1 src2)
(xmm_rm_r_evex (Avx512Opcode.Vpsraq) src1 src2))
;; Helper for creating `vpsraq` instructions.
(decl x64_vpsraq_imm (XmmMem u8) Xmm)
(rule (x64_vpsraq_imm src imm)
(xmm_unary_rm_r_imm_evex (Avx512Opcode.VpsraqImm) src imm))
;; Helper for creating `pextrb` instructions.
(decl x64_pextrb (Xmm u8) Gpr)
(rule (x64_pextrb src lane)
(xmm_to_gpr_imm (SseOpcode.Pextrb) src lane))
(rule 1 (x64_pextrb src lane)
(if-let $true (use_avx))
(xmm_to_gpr_imm_vex (AvxOpcode.Vpextrb) src lane))
(decl x64_pextrb_store (SyntheticAmode Xmm u8) SideEffectNoResult)
(rule (x64_pextrb_store addr src lane)
(xmm_movrm_imm (SseOpcode.Pextrb) addr src lane))
(rule 1 (x64_pextrb_store addr src lane)
(if-let $true (use_avx))
(xmm_movrm_imm_vex (AvxOpcode.Vpextrb) addr src lane))
;; Helper for creating `pextrw` instructions.
(decl x64_pextrw (Xmm u8) Gpr)
(rule (x64_pextrw src lane)
(xmm_to_gpr_imm (SseOpcode.Pextrw) src lane))
(rule 1 (x64_pextrw src lane)
(if-let $true (use_avx))
(xmm_to_gpr_imm_vex (AvxOpcode.Vpextrw) src lane))
(decl x64_pextrw_store (SyntheticAmode Xmm u8) SideEffectNoResult)
(rule (x64_pextrw_store addr src lane)
(xmm_movrm_imm (SseOpcode.Pextrw) addr src lane))
(rule 1 (x64_pextrw_store addr src lane)
(if-let $true (use_avx))
(xmm_movrm_imm_vex (AvxOpcode.Vpextrw) addr src lane))
;; Helper for creating `pextrd` instructions.
(decl x64_pextrd (Xmm u8) Gpr)
(rule (x64_pextrd src lane)
(xmm_to_gpr_imm (SseOpcode.Pextrd) src lane))
(rule 1 (x64_pextrd src lane)
(if-let $true (use_avx))
(xmm_to_gpr_imm_vex (AvxOpcode.Vpextrd) src lane))
(decl x64_pextrd_store (SyntheticAmode Xmm u8) SideEffectNoResult)
(rule (x64_pextrd_store addr src lane)
(xmm_movrm_imm (SseOpcode.Pextrd) addr src lane))
(rule 1 (x64_pextrd_store addr src lane)
(if-let $true (use_avx))
(xmm_movrm_imm_vex (AvxOpcode.Vpextrd) addr src lane))
;; Helper for creating `pextrq` instructions.
(decl x64_pextrq (Xmm u8) Gpr)
(rule (x64_pextrq src lane)
(xmm_to_gpr_imm (SseOpcode.Pextrq) src lane))
(rule 1 (x64_pextrq src lane)
(if-let $true (use_avx))
(xmm_to_gpr_imm_vex (AvxOpcode.Vpextrq) src lane))
(decl x64_pextrq_store (SyntheticAmode Xmm u8) SideEffectNoResult)
(rule (x64_pextrq_store addr src lane)
(xmm_movrm_imm (SseOpcode.Pextrq) addr src lane))
(rule 1 (x64_pextrq_store addr src lane)
(if-let $true (use_avx))
(xmm_movrm_imm_vex (AvxOpcode.Vpextrq) addr src lane))
;; Helper for creating `pmovmskb` instructions.
(decl x64_pmovmskb (OperandSize Xmm) Gpr)
(rule (x64_pmovmskb size src)
(xmm_to_gpr (SseOpcode.Pmovmskb) src size))
(rule 1 (x64_pmovmskb size src)
(if-let $true (use_avx))
(xmm_to_gpr_vex (AvxOpcode.Vpmovmskb) src size))
;; Helper for creating `movmskps` instructions.
(decl x64_movmskps (OperandSize Xmm) Gpr)
(rule (x64_movmskps size src)
(xmm_to_gpr (SseOpcode.Movmskps) src size))
(rule 1 (x64_movmskps size src)
(if-let $true (use_avx))
(xmm_to_gpr_vex (AvxOpcode.Vmovmskps) src size))
;; Helper for creating `movmskpd` instructions.
(decl x64_movmskpd (OperandSize Xmm) Gpr)
(rule (x64_movmskpd size src)
(xmm_to_gpr (SseOpcode.Movmskpd) src size))
(rule 1 (x64_movmskpd size src)
(if-let $true (use_avx))
(xmm_to_gpr_vex (AvxOpcode.Vmovmskpd) src size))
;; Helper for creating `not` instructions.
(decl x64_not (Type Gpr) Gpr)
(rule (x64_not ty src)
(let ((dst WritableGpr (temp_writable_gpr))
(size OperandSize (operand_size_of_type_32_64 ty))
(_ Unit (emit (MInst.Not size src dst))))
dst))
;; Helper for creating `neg` instructions.
(decl x64_neg (Type Gpr) Gpr)
(rule (x64_neg ty src)
(let ((dst WritableGpr (temp_writable_gpr))
(size OperandSize (raw_operand_size_of_type ty))
(_ Unit (emit (MInst.Neg size src dst))))
dst))
;; Helper for creating `neg` instructions whose flags are also used.
(decl x64_neg_paired (Type Gpr) ProducesFlags)
(rule (x64_neg_paired ty src)
(let ((dst WritableGpr (temp_writable_gpr))
(size OperandSize (raw_operand_size_of_type ty))
(inst MInst (MInst.Neg size src dst)))
(ProducesFlags.ProducesFlagsReturnsResultWithConsumer inst dst)))
(decl x64_lea (Type SyntheticAmode) Gpr)
(rule (x64_lea ty addr)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.LoadEffectiveAddress addr dst (operand_size_of_type_32_64 ty)))))
dst))
;; Helper for creating `ud2` instructions.
(decl x64_ud2 (TrapCode) SideEffectNoResult)
(rule (x64_ud2 code)
(SideEffectNoResult.Inst (MInst.Ud2 code)))
;; Helper for creating `hlt` instructions.
(decl x64_hlt () SideEffectNoResult)
(rule (x64_hlt)
(SideEffectNoResult.Inst (MInst.Hlt)))
;; Helper for creating `lzcnt` instructions.
(decl x64_lzcnt (Type Gpr) Gpr)
(rule (x64_lzcnt ty src)
(unary_rm_r (UnaryRmROpcode.Lzcnt) src (operand_size_of_type_32_64 ty)))
;; Helper for creating `tzcnt` instructions.
(decl x64_tzcnt (Type Gpr) Gpr)
(rule (x64_tzcnt ty src)
(unary_rm_r (UnaryRmROpcode.Tzcnt) src (operand_size_of_type_32_64 ty)))
;; Helper for creating `bsr` instructions.
(decl x64_bsr (Type Gpr) ProducesFlags)
(rule (x64_bsr ty src)
(let ((dst WritableGpr (temp_writable_gpr))
(size OperandSize (operand_size_of_type_32_64 ty))
(inst MInst (MInst.UnaryRmR size (UnaryRmROpcode.Bsr) src dst)))
(ProducesFlags.ProducesFlagsReturnsReg inst dst)))
;; Helper for creating `bsr + cmov` instruction pairs that produce the
;; result of the `bsr`, or `alt` if the input was zero.
(decl bsr_or_else (Type Gpr Gpr) Gpr)
(rule (bsr_or_else ty src alt)
(let ((bsr ProducesFlags (x64_bsr ty src))
;; Manually extract the result from the bsr, then ignore
;; it below, since we need to thread it into the cmove
;; before we pass the cmove to with_flags_reg.
(bsr_result Gpr (produces_flags_get_reg bsr))
(cmove ConsumesFlags (cmove ty (CC.Z) alt bsr_result)))
(with_flags_reg (produces_flags_ignore bsr) cmove)))
;; Helper for creating `bsf` instructions.
(decl x64_bsf (Type Gpr) ProducesFlags)
(rule (x64_bsf ty src)
(let ((dst WritableGpr (temp_writable_gpr))
(size OperandSize (operand_size_of_type_32_64 ty))
(inst MInst (MInst.UnaryRmR size (UnaryRmROpcode.Bsf) src dst)))
(ProducesFlags.ProducesFlagsReturnsReg inst dst)))
;; Helper for creating `bsf + cmov` instruction pairs that produce the
;; result of the `bsf`, or `alt` if the input was zero.
(decl bsf_or_else (Type Gpr Gpr) Gpr)
(rule (bsf_or_else ty src alt)
(let ((bsf ProducesFlags (x64_bsf ty src))
;; Manually extract the result from the bsf, then ignore
;; it below, since we need to thread it into the cmove
;; before we pass the cmove to with_flags_reg.
(bsf_result Gpr (produces_flags_get_reg bsf))
(cmove ConsumesFlags (cmove ty (CC.Z) alt bsf_result)))
(with_flags_reg (produces_flags_ignore bsf) cmove)))
;; Helper for creating `blsi` instructions.
(decl x64_blsi (Type GprMem) Gpr)
(rule (x64_blsi ty src)
(unary_rm_r_vex (UnaryRmRVexOpcode.Blsi) src (operand_size_of_type_32_64 ty)))
;; Helper for creating `blsmsk` instructions.
(decl x64_blsmsk (Type GprMem) Gpr)
(rule (x64_blsmsk ty src)
(unary_rm_r_vex (UnaryRmRVexOpcode.Blsmsk) src (operand_size_of_type_32_64 ty)))
;; Helper for creating `blsr` instructions.
(decl x64_blsr (Type GprMem) Gpr)
(rule (x64_blsr ty src)
(unary_rm_r_vex (UnaryRmRVexOpcode.Blsr) src (operand_size_of_type_32_64 ty)))
;; Helper for creating `sarx` instructions.
(decl x64_sarx (Type GprMem Gpr) Gpr)
(rule (x64_sarx ty val amt)
(alu_rm_r_vex ty (AluRmROpcode.Sarx) amt val))
;; Helper for creating `shrx` instructions.
(decl x64_shrx (Type GprMem Gpr) Gpr)
(rule (x64_shrx ty val amt)
(alu_rm_r_vex ty (AluRmROpcode.Shrx) amt val))
;; Helper for creating `shlx` instructions.
(decl x64_shlx (Type GprMem Gpr) Gpr)
(rule (x64_shlx ty val amt)
(alu_rm_r_vex ty (AluRmROpcode.Shlx) amt val))
;; Helper for creating `rorx` instructions.
(decl x64_rorx (Type GprMem u8) Gpr)
(rule (x64_rorx ty src imm)
(unary_rm_r_imm_vex (UnaryRmRImmVexOpcode.Rorx)
src
(operand_size_of_type_32_64 ty)
imm))
;; Helper for creating `popcnt` instructions.
(decl x64_popcnt (Type Gpr) Gpr)
(rule (x64_popcnt ty src)
(unary_rm_r (UnaryRmROpcode.Popcnt) src (operand_size_of_type_32_64 ty)))
;; Helper for creating `minss` instructions.
(decl x64_minss (Xmm XmmMem) Xmm)
(rule (x64_minss x y)
(xmm_rm_r_unaligned (SseOpcode.Minss) x y))
(rule 1 (x64_minss x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vminss) x y))
;; Helper for creating `minsd` instructions.
(decl x64_minsd (Xmm XmmMem) Xmm)
(rule (x64_minsd x y)
(xmm_rm_r_unaligned (SseOpcode.Minsd) x y))
(rule 1 (x64_minsd x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vminsd) x y))
;; Helper for creating `minps` instructions.
(decl x64_minps (Xmm XmmMem) Xmm)
(rule 0 (x64_minps x y)
(xmm_rm_r (SseOpcode.Minps) x y))
(rule 1 (x64_minps x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vminps) x y))
;; Helper for creating `minpd` instructions.
(decl x64_minpd (Xmm XmmMem) Xmm)
(rule 0 (x64_minpd x y)
(xmm_rm_r (SseOpcode.Minpd) x y))
(rule 1 (x64_minpd x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vminpd) x y))
;; Helper for creating `maxss` instructions.
(decl x64_maxss (Xmm XmmMem) Xmm)
(rule (x64_maxss x y)
(xmm_rm_r_unaligned (SseOpcode.Maxss) x y))
(rule 1 (x64_maxss x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vmaxss) x y))
;; Helper for creating `maxsd` instructions.
(decl x64_maxsd (Xmm XmmMem) Xmm)
(rule (x64_maxsd x y)
(xmm_rm_r_unaligned (SseOpcode.Maxsd) x y))
(rule 1 (x64_maxsd x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vmaxsd) x y))
;; Helper for creating `maxps` instructions.
(decl x64_maxps (Xmm XmmMem) Xmm)
(rule 0 (x64_maxps x y)
(xmm_rm_r (SseOpcode.Maxps) x y))
(rule 1 (x64_maxps x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vmaxps) x y))
;; Helper for creating `maxpd` instructions.
(decl x64_maxpd (Xmm XmmMem) Xmm)
(rule 0 (x64_maxpd x y)
(xmm_rm_r (SseOpcode.Maxpd) x y))
(rule 1 (x64_maxpd x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vmaxpd) x y))
;; Helper for creating `vfmadd213*` instructions
(decl x64_vfmadd213 (Type Xmm Xmm XmmMem) Xmm)
(rule (x64_vfmadd213 $F32 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfmadd213ss) a b c))
(rule (x64_vfmadd213 $F64 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfmadd213sd) a b c))
(rule (x64_vfmadd213 $F32X4 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfmadd213ps) a b c))
(rule (x64_vfmadd213 $F64X2 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfmadd213pd) a b c))
;; Helper for creating `vfmadd132*` instructions
(decl x64_vfmadd132 (Type Xmm Xmm XmmMem) Xmm)
(rule (x64_vfmadd132 $F32 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfmadd132ss) a b c))
(rule (x64_vfmadd132 $F64 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfmadd132sd) a b c))
(rule (x64_vfmadd132 $F32X4 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfmadd132ps) a b c))
(rule (x64_vfmadd132 $F64X2 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfmadd132pd) a b c))
;; Helper for creating `vfnmadd213*` instructions
(decl x64_vfnmadd213 (Type Xmm Xmm XmmMem) Xmm)
(rule (x64_vfnmadd213 $F32 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfnmadd213ss) a b c))
(rule (x64_vfnmadd213 $F64 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfnmadd213sd) a b c))
(rule (x64_vfnmadd213 $F32X4 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfnmadd213ps) a b c))
(rule (x64_vfnmadd213 $F64X2 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfnmadd213pd) a b c))
;; Helper for creating `vfnmadd132*` instructions
(decl x64_vfnmadd132 (Type Xmm Xmm XmmMem) Xmm)
(rule (x64_vfnmadd132 $F32 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfnmadd132ss) a b c))
(rule (x64_vfnmadd132 $F64 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfnmadd132sd) a b c))
(rule (x64_vfnmadd132 $F32X4 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfnmadd132ps) a b c))
(rule (x64_vfnmadd132 $F64X2 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfnmadd132pd) a b c))
;; Helper for creating `vfmsub213*` instructions
(decl x64_vfmsub213 (Type Xmm Xmm XmmMem) Xmm)
(rule (x64_vfmsub213 $F32 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfmsub213ss) a b c))
(rule (x64_vfmsub213 $F64 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfmsub213sd) a b c))
(rule (x64_vfmsub213 $F32X4 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfmsub213ps) a b c))
(rule (x64_vfmsub213 $F64X2 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfmsub213pd) a b c))
;; Helper for creating `vfmsub132*` instructions
(decl x64_vfmsub132 (Type Xmm Xmm XmmMem) Xmm)
(rule (x64_vfmsub132 $F32 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfmsub132ss) a b c))
(rule (x64_vfmsub132 $F64 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfmsub132sd) a b c))
(rule (x64_vfmsub132 $F32X4 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfmsub132ps) a b c))
(rule (x64_vfmsub132 $F64X2 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfmsub132pd) a b c))
;; Helper for creating `vfnmsub213*` instructions
(decl x64_vfnmsub213 (Type Xmm Xmm XmmMem) Xmm)
(rule (x64_vfnmsub213 $F32 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfnmsub213ss) a b c))
(rule (x64_vfnmsub213 $F64 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfnmsub213sd) a b c))
(rule (x64_vfnmsub213 $F32X4 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfnmsub213ps) a b c))
(rule (x64_vfnmsub213 $F64X2 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfnmsub213pd) a b c))
;; Helper for creating `vfnmsub132*` instructions
(decl x64_vfnmsub132 (Type Xmm Xmm XmmMem) Xmm)
(rule (x64_vfnmsub132 $F32 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfnmsub132ss) a b c))
(rule (x64_vfnmsub132 $F64 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfnmsub132sd) a b c))
(rule (x64_vfnmsub132 $F32X4 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfnmsub132ps) a b c))
(rule (x64_vfnmsub132 $F64X2 a b c) (xmm_rmr_vex3 (AvxOpcode.Vfnmsub132pd) a b c))
;; Note, the `vfmsub231` and `vfnmsub231*` instructions are omitted, because
;; instruction selection happens before register allocation and therefore there
;; is no benefit to a a third permutation
;; Helper for creating `sqrtss` instructions.
;;
;; NB: the square-root operation technically only has one operand but this
;; instruction has two. This is to reflect how the square root operation copies
;; the upper bits of the first register and only performs the square root
;; operation on the low bits of the second register. This introduces
;; a data-dependency on the contents of the first register which is modeled
;; here.
(decl x64_sqrtss (Xmm XmmMem) Xmm)
(rule (x64_sqrtss x y) (xmm_rm_r_unaligned (SseOpcode.Sqrtss) x y))
(rule 1 (x64_sqrtss x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vsqrtss) x y))
;; Helper for creating `sqrtsd` instructions.
;;
;; NB: see `x64_sqrtss` for explanation of why this has two args.
(decl x64_sqrtsd (Xmm XmmMem) Xmm)
(rule (x64_sqrtsd x y) (xmm_rm_r_unaligned (SseOpcode.Sqrtsd) x y))
(rule 1 (x64_sqrtsd x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vsqrtsd) x y))
;; Helper for creating `sqrtps` instructions.
(decl x64_sqrtps (XmmMem) Xmm)
(rule (x64_sqrtps x) (xmm_unary_rm_r (SseOpcode.Sqrtps) x))
(rule 1 (x64_sqrtps x)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vsqrtps) x))
;; Helper for creating `sqrtpd` instructions.
(decl x64_sqrtpd (XmmMem) Xmm)
(rule (x64_sqrtpd x) (xmm_unary_rm_r (SseOpcode.Sqrtpd) x))
(rule 1 (x64_sqrtpd x)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vsqrtpd) x))
;; Helper for creating `cvtss2sd` instructions.
;;
;; NB: see `x64_sqrtss` for why this has two args (same reasoning, different op)
(decl x64_cvtss2sd (Xmm XmmMem) Xmm)
(rule (x64_cvtss2sd x y) (xmm_rm_r_unaligned (SseOpcode.Cvtss2sd) x y))
(rule 1 (x64_cvtss2sd x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vcvtss2sd) x y))
;; Helper for creating `cvtsd2ss` instructions.
;;
;; NB: see `x64_sqrtss` for why this has two args (same reasoning, different op)
(decl x64_cvtsd2ss (Xmm XmmMem) Xmm)
(rule (x64_cvtsd2ss x y) (xmm_rm_r_unaligned (SseOpcode.Cvtsd2ss) x y))
(rule 1 (x64_cvtsd2ss x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vcvtsd2ss) x y))
;; Helper for creating `cvtdq2ps` instructions.
(decl x64_cvtdq2ps (XmmMem) Xmm)
(rule (x64_cvtdq2ps x) (xmm_unary_rm_r (SseOpcode.Cvtdq2ps) x))
(rule 1 (x64_cvtdq2ps x)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vcvtdq2ps) x))
;; Helper for creating `cvtps2pd` instructions.
(decl x64_cvtps2pd (XmmMem) Xmm)
(rule (x64_cvtps2pd x) (xmm_unary_rm_r (SseOpcode.Cvtps2pd) x))
(rule 1 (x64_cvtps2pd x)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vcvtps2pd) x))
;; Helper for creating `cvtpd2ps` instructions.
(decl x64_cvtpd2ps (XmmMem) Xmm)
(rule (x64_cvtpd2ps x) (xmm_unary_rm_r (SseOpcode.Cvtpd2ps) x))
(rule 1 (x64_cvtpd2ps x)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vcvtpd2ps) x))
;; Helper for creating `cvtdq2pd` instructions.
(decl x64_cvtdq2pd (XmmMem) Xmm)
(rule (x64_cvtdq2pd x) (xmm_unary_rm_r (SseOpcode.Cvtdq2pd) x))
(rule 1 (x64_cvtdq2pd x)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vcvtdq2pd) x))
;; Helper for creating `cvtsi2ss` instructions.
(decl x64_cvtsi2ss (Type Xmm GprMem) Xmm)
(rule (x64_cvtsi2ss ty x y)
(cvt_int_to_float (SseOpcode.Cvtsi2ss) x y (raw_operand_size_of_type ty)))
(rule 1 (x64_cvtsi2ss ty x y)
(if-let $true (use_avx))
(cvt_int_to_float_vex (AvxOpcode.Vcvtsi2ss) x y (raw_operand_size_of_type ty)))
;; Helper for creating `cvtsi2sd` instructions.
(decl x64_cvtsi2sd (Type Xmm GprMem) Xmm)
(rule (x64_cvtsi2sd ty x y)
(cvt_int_to_float (SseOpcode.Cvtsi2sd) x y (raw_operand_size_of_type ty)))
(rule 1 (x64_cvtsi2sd ty x y)
(if-let $true (use_avx))
(cvt_int_to_float_vex (AvxOpcode.Vcvtsi2sd) x y (raw_operand_size_of_type ty)))
;; Helper for creating `cvttps2dq` instructions.
(decl x64_cvttps2dq (XmmMem) Xmm)
(rule (x64_cvttps2dq x)
(xmm_unary_rm_r (SseOpcode.Cvttps2dq) x))
(rule 1 (x64_cvttps2dq x)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vcvttps2dq) x))
;; Helper for creating `cvttpd2dq` instructions.
(decl x64_cvttpd2dq (XmmMem) Xmm)
(rule (x64_cvttpd2dq x)
(xmm_unary_rm_r (SseOpcode.Cvttpd2dq) x))
(rule 1 (x64_cvttpd2dq x)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vcvttpd2dq) x))
;; Helpers for creating `pcmpeq*` instructions.
(decl x64_pcmpeq (Type Xmm XmmMem) Xmm)
(rule (x64_pcmpeq $I8X16 x y) (x64_pcmpeqb x y))
(rule (x64_pcmpeq $I16X8 x y) (x64_pcmpeqw x y))
(rule (x64_pcmpeq $I32X4 x y) (x64_pcmpeqd x y))
(rule (x64_pcmpeq $I64X2 x y)
(if-let $true (use_sse41))
(x64_pcmpeqq x y))
;; Without SSE 4.1 there's no access to `pcmpeqq`, so it's emulated by comparing
;; 32-bit lanes instead. The upper and lower halves of the 32-bit comparison are
;; swapped and then these two results are and'd together. This way only if both
;; 32-bit values were equal is the result all ones, otherwise the result is
;; all zeros if either 32-bit comparison was zero.
(rule -1 (x64_pcmpeq $I64X2 x y)
(let ((cmp32 Xmm (x64_pcmpeqd x y))
(cmp32_swapped Xmm (x64_pshufd cmp32 0b10_11_00_01)))
(x64_pand cmp32 cmp32_swapped)))
(decl x64_pcmpeqb (Xmm XmmMem) Xmm)
(rule 0 (x64_pcmpeqb x y) (xmm_rm_r (SseOpcode.Pcmpeqb) x y))
(rule 1 (x64_pcmpeqb x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpcmpeqb) x y))
(decl x64_pcmpeqw (Xmm XmmMem) Xmm)
(rule 0 (x64_pcmpeqw x y) (xmm_rm_r (SseOpcode.Pcmpeqw) x y))
(rule 1 (x64_pcmpeqw x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpcmpeqw) x y))
(decl x64_pcmpeqd (Xmm XmmMem) Xmm)
(rule 0 (x64_pcmpeqd x y) (xmm_rm_r (SseOpcode.Pcmpeqd) x y))
(rule 1 (x64_pcmpeqd x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpcmpeqd) x y))
(decl x64_pcmpeqq (Xmm XmmMem) Xmm)
(rule 0 (x64_pcmpeqq x y) (xmm_rm_r (SseOpcode.Pcmpeqq) x y))
(rule 1 (x64_pcmpeqq x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpcmpeqq) x y))
;; Helpers for creating `pcmpgt*` instructions.
(decl x64_pcmpgt (Type Xmm XmmMem) Xmm)
(rule (x64_pcmpgt $I8X16 x y) (x64_pcmpgtb x y))
(rule (x64_pcmpgt $I16X8 x y) (x64_pcmpgtw x y))
(rule (x64_pcmpgt $I32X4 x y) (x64_pcmpgtd x y))
;; SSE4.2 gives a single-instruction for this lowering, but prior to that it's a
;; bit more complicated.
(rule 1 (x64_pcmpgt $I64X2 x y)
(if-let $true (use_sse42))
(x64_pcmpgtq x y))
;; Without SSE4.2 a 64-bit comparison is expanded to a number of instructions.
;; The basic idea is to delegate to a 32-bit comparison and work with the
;; results from there. The comparison to execute is:
;;
;; [ xhi ][ xlo ] > [ yhi ][ ylo ]
;;
;; If xhi != yhi, then the result is whatever the result of that comparison is.
;; If xhi == yhi, then the result is the unsigned comparison of xlo/ylo since
;; the 64-bit value is positive. To achieve this as part of the same comparison
;; the upper bit of `xlo` and `ylo` is flipped to change the sign when compared
;; as a 32-bit signed number. The result here is then:
;;
;; * if xlo and yhi had the same upper bit, then the unsigned comparison should
;; be the same as comparing the flipped versions as signed.
;; * if xlo had an upper bit of 0 and ylo had an upper bit of 1, then xlo > ylo
;; is false. When flipping the bits xlo becomes negative and ylo becomes
;; positive when compared as 32-bits, so the result is the same.
;; * if xlo had an upper bit of 1 and ylo had an upper bit of 0, then xlo > ylo
;; is true. When flipping the bits xlo becomes positive and ylo becomes
;; negative when compared as 32-bits, so the result is the same.
;;
;; Given all that the sequence here is to flip the upper bits of xlo and ylo,
;; then compare the masked results for equality and for gt. If the upper 32-bits
;; are not equal then the gt result for the upper bits is used. If the upper
;; 32-bits are equal then the lower 32-bits comparison is used instead.
(rule 0 (x64_pcmpgt $I64X2 x y)
(let (
(mask Xmm (x64_movdqu_load (emit_u128_le_const 0x00000000_80000000_00000000_80000000)))
(x_masked Xmm (x64_pxor mask x))
(y_masked Xmm (x64_pxor mask y))
(cmp32 Xmm (x64_pcmpgtd x_masked y_masked))
(low_halves_gt Xmm (x64_pshufd cmp32 0xa0))
(high_halves_gt Xmm (x64_pshufd cmp32 0xf5))
(cmp_eq Xmm (x64_pcmpeqd x_masked y_masked))
(high_halves_eq Xmm (x64_pshufd cmp_eq 0xf5))
(low_gt_and_high_eq Xmm (x64_pand low_halves_gt high_halves_eq))
)
(x64_por low_gt_and_high_eq high_halves_gt)))
(decl x64_pcmpgtb (Xmm XmmMem) Xmm)
(rule 0 (x64_pcmpgtb x y) (xmm_rm_r (SseOpcode.Pcmpgtb) x y))
(rule 1 (x64_pcmpgtb x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpcmpgtb) x y))
(decl x64_pcmpgtw (Xmm XmmMem) Xmm)
(rule 0 (x64_pcmpgtw x y) (xmm_rm_r (SseOpcode.Pcmpgtw) x y))
(rule 1 (x64_pcmpgtw x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpcmpgtw) x y))
(decl x64_pcmpgtd (Xmm XmmMem) Xmm)
(rule 0 (x64_pcmpgtd x y) (xmm_rm_r (SseOpcode.Pcmpgtd) x y))
(rule 1 (x64_pcmpgtd x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpcmpgtd) x y))
(decl x64_pcmpgtq (Xmm XmmMem) Xmm)
(rule 0 (x64_pcmpgtq x y) (xmm_rm_r (SseOpcode.Pcmpgtq) x y))
(rule 1 (x64_pcmpgtq x y)
(if-let $true (use_avx))
(xmm_rmir_vex (AvxOpcode.Vpcmpgtq) x y))
;; Helpers for read-modify-write ALU form (AluRM).
(decl alu_rm (Type AluRmiROpcode Amode Gpr) SideEffectNoResult)
(rule (alu_rm ty opcode src1_dst src2)
(let ((size OperandSize (operand_size_of_type_32_64 ty)))
(SideEffectNoResult.Inst (MInst.AluRM size opcode src1_dst src2))))
(decl x64_add_mem (Type Amode Gpr) SideEffectNoResult)
(rule (x64_add_mem ty addr val)
(alu_rm ty (AluRmiROpcode.Add) addr val))
(decl x64_sub_mem (Type Amode Gpr) SideEffectNoResult)
(rule (x64_sub_mem ty addr val)
(alu_rm ty (AluRmiROpcode.Sub) addr val))
(decl x64_and_mem (Type Amode Gpr) SideEffectNoResult)
(rule (x64_and_mem ty addr val)
(alu_rm ty (AluRmiROpcode.And) addr val))
(decl x64_or_mem (Type Amode Gpr) SideEffectNoResult)
(rule (x64_or_mem ty addr val)
(alu_rm ty (AluRmiROpcode.Or) addr val))
(decl x64_xor_mem (Type Amode Gpr) SideEffectNoResult)
(rule (x64_xor_mem ty addr val)
(alu_rm ty (AluRmiROpcode.Xor) addr val))
;; Trap if the condition code supplied is set.
(decl trap_if (CC TrapCode) ConsumesFlags)
(rule (trap_if cc tc)
(ConsumesFlags.ConsumesFlagsSideEffect (MInst.TrapIf cc tc)))
;; Trap if both of the condition codes supplied are set.
(decl trap_if_and (CC CC TrapCode) ConsumesFlags)
(rule (trap_if_and cc1 cc2 tc)
(ConsumesFlags.ConsumesFlagsSideEffect (MInst.TrapIfAnd cc1 cc2 tc)))
;; Trap if either of the condition codes supplied are set.
(decl trap_if_or (CC CC TrapCode) ConsumesFlags)
(rule (trap_if_or cc1 cc2 tc)
(ConsumesFlags.ConsumesFlagsSideEffect (MInst.TrapIfOr cc1 cc2 tc)))
(decl trap_if_icmp (IcmpCondResult TrapCode) SideEffectNoResult)
(rule (trap_if_icmp (IcmpCondResult.Condition producer cc) tc)
(with_flags_side_effect producer (trap_if cc tc)))
(decl trap_if_fcmp (FcmpCondResult TrapCode) SideEffectNoResult)
(rule (trap_if_fcmp (FcmpCondResult.Condition producer cc) tc)
(with_flags_side_effect producer (trap_if cc tc)))
(rule (trap_if_fcmp (FcmpCondResult.AndCondition producer cc1 cc2) tc)
(with_flags_side_effect producer (trap_if_and cc1 cc2 tc)))
(rule (trap_if_fcmp (FcmpCondResult.OrCondition producer cc1 cc2) tc)
(with_flags_side_effect producer (trap_if_or cc1 cc2 tc)))
;; Helper for creating `movddup` instructions
(decl x64_movddup (XmmMem) Xmm)
(rule (x64_movddup src)
(xmm_unary_rm_r_unaligned (SseOpcode.Movddup) src))
(rule 1 (x64_movddup src)
(if-let $true (use_avx))
(xmm_unary_rm_r_vex (AvxOpcode.Vmovddup) src))
;; Helper for creating `vpbroadcastb` instructions
(decl x64_vpbroadcastb (XmmMem) Xmm)
(rule (x64_vpbroadcastb src)
(xmm_unary_rm_r_vex (AvxOpcode.Vpbroadcastb) src))
;; Helper for creating `vpbroadcastw` instructions
(decl x64_vpbroadcastw (XmmMem) Xmm)
(rule (x64_vpbroadcastw src)
(xmm_unary_rm_r_vex (AvxOpcode.Vpbroadcastw) src))
;; Helper for creating `vpbroadcastd` instructions
(decl x64_vpbroadcastd (XmmMem) Xmm)
(rule (x64_vpbroadcastd src)
(xmm_unary_rm_r_vex (AvxOpcode.Vpbroadcastd) src))
;; Helper for creating `vbroadcastss` instructions
(decl x64_vbroadcastss (XmmMem) Xmm)
(rule (x64_vbroadcastss src)
(xmm_unary_rm_r_vex (AvxOpcode.Vbroadcastss) src))
;;;; Jumps ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Unconditional jump.
(decl jmp_known (MachLabel) SideEffectNoResult)
(rule (jmp_known target)
(SideEffectNoResult.Inst (MInst.JmpKnown target)))
(decl jmp_if (CC MachLabel) ConsumesFlags)
(rule (jmp_if cc taken)
(ConsumesFlags.ConsumesFlagsSideEffect (MInst.JmpIf cc taken)))
;; Conditional jump based on the condition code.
(decl jmp_cond (CC MachLabel MachLabel) ConsumesFlags)
(rule (jmp_cond cc taken not_taken)
(ConsumesFlags.ConsumesFlagsSideEffect (MInst.JmpCond cc taken not_taken)))
;; Conditional jump based on the result of an icmp.
(decl jmp_cond_icmp (IcmpCondResult MachLabel MachLabel) SideEffectNoResult)
(rule (jmp_cond_icmp (IcmpCondResult.Condition producer cc) taken not_taken)
(with_flags_side_effect producer (jmp_cond cc taken not_taken)))
;; Conditional jump based on the result of an fcmp.
(decl jmp_cond_fcmp (FcmpCondResult MachLabel MachLabel) SideEffectNoResult)
(rule (jmp_cond_fcmp (FcmpCondResult.Condition producer cc) taken not_taken)
(with_flags_side_effect producer (jmp_cond cc taken not_taken)))
(rule (jmp_cond_fcmp (FcmpCondResult.AndCondition producer cc1 cc2) taken not_taken)
(with_flags_side_effect producer
(consumes_flags_concat
(jmp_if (cc_invert cc1) not_taken)
(jmp_cond (cc_invert cc2) not_taken taken))))
(rule (jmp_cond_fcmp (FcmpCondResult.OrCondition producer cc1 cc2) taken not_taken)
(with_flags_side_effect producer
(consumes_flags_concat
(jmp_if cc1 taken)
(jmp_cond cc2 taken not_taken))))
;; Emit the compound instruction that does:
;;
;; lea $jt, %rA
;; movsbl [%rA, %rIndex, 2], %rB
;; add %rB, %rA
;; j *%rA
;; [jt entries]
;;
;; This must be *one* instruction in the vcode because we cannot allow regalloc
;; to insert any spills/fills in the middle of the sequence; otherwise, the
;; lea PC-rel offset to the jumptable would be incorrect. (The alternative
;; is to introduce a relocation pass for inlined jumptables, which is much
;; worse.)
(decl jmp_table_seq (Type Gpr MachLabel BoxVecMachLabel) SideEffectNoResult)
(rule (jmp_table_seq ty idx default_target jt_targets)
(let (;; This temporary is used as a signed integer of 64-bits (to hold
;; addresses).
(tmp1 WritableGpr (temp_writable_gpr))
;; This temporary is used as a signed integer of 32-bits (for the
;; wasm-table index) and then 64-bits (address addend). The small
;; lie about the I64 type is benign, since the temporary is dead
;; after this instruction (and its Cranelift type is thus unused).
(tmp2 WritableGpr (temp_writable_gpr)))
(SideEffectNoResult.Inst
(MInst.JmpTableSeq idx tmp1 tmp2 default_target jt_targets))))
;;;; Comparisons ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(type IcmpCondResult (enum (Condition (producer ProducesFlags) (cc CC))))
(decl icmp_cond_result (ProducesFlags CC) IcmpCondResult)
(rule (icmp_cond_result producer cc) (IcmpCondResult.Condition producer cc))
(decl invert_icmp_cond_result (IcmpCondResult) IcmpCondResult)
(rule (invert_icmp_cond_result (IcmpCondResult.Condition producer cc))
(icmp_cond_result producer (cc_invert cc)))
;; Lower an Icmp result into a boolean value in a register.
(decl lower_icmp_bool (IcmpCondResult) ValueRegs)
(rule (lower_icmp_bool (IcmpCondResult.Condition producer cc))
(with_flags producer (x64_setcc cc)))
;; Emit a conditional move based on the result of an icmp.
(decl select_icmp (IcmpCondResult Value Value) ValueRegs)
;; Ensure that we put the `x` argument into a register for single-register
;; gpr-typed arguments, as we rely on this for the legalization of heap_addr and
;; loading easily computed constants (like 0) from memory is too expensive.
(rule 1 (select_icmp (IcmpCondResult.Condition producer cc) x @ (value_type (is_single_register_gpr_type ty)) y)
(with_flags producer (cmove ty cc (put_in_gpr x) y)))
;; Otherwise, fall back on the behavior of `cmove_from_values`.
(rule 0 (select_icmp (IcmpCondResult.Condition producer cc) x @ (value_type ty) y)
(with_flags producer (cmove_from_values ty cc x y)))
(decl emit_cmp (IntCC Value Value) IcmpCondResult)
;; For GPR-held values we only need to emit `CMP + SETCC`. We rely here on
;; Cranelift's verification that `a` and `b` are of the same type.
(rule 0 (emit_cmp cc a @ (value_type ty) b)
(let ((size OperandSize (raw_operand_size_of_type ty)))
(icmp_cond_result (x64_cmp size a b) cc)))
;; As a special case, swap the arguments to the comparison when the LHS is a
;; constant. This ensures that we avoid moving the constant into a register when
;; performing the comparison.
(rule 1 (emit_cmp cc (and (simm32_from_value a) (value_type ty)) b)
(let ((size OperandSize (raw_operand_size_of_type ty)))
(icmp_cond_result (x64_cmp size b a) (intcc_swap_args cc))))
;; Special case: use the test instruction for comparisons with 0.
(rule 2 (emit_cmp cc a @ (value_type ty) (u64_from_iconst 0))
(let ((size OperandSize (raw_operand_size_of_type ty))
(a Gpr (put_in_reg a)))
(icmp_cond_result (x64_test size a a) cc)))
(rule 3 (emit_cmp cc (u64_from_iconst 0) b @ (value_type ty))
(let ((size OperandSize (raw_operand_size_of_type ty))
(b Gpr (put_in_reg b)))
(icmp_cond_result (x64_test size b b) (intcc_swap_args cc))))
;; For I128 values (held in two GPRs), the instruction sequences depend on what
;; kind of condition is tested.
(rule 4 (emit_cmp cc a @ (value_type $I128) b)
(let ((a_lo Gpr (value_regs_get_gpr a 0))
(a_hi Gpr (value_regs_get_gpr a 1))
(b_lo Gpr (value_regs_get_gpr b 0))
(b_hi Gpr (value_regs_get_gpr b 1)))
(emit_cmp_i128 cc a_hi a_lo b_hi b_lo)))
(decl emit_cmp_i128 (CC Gpr Gpr Gpr Gpr) IcmpCondResult)
;; Eliminate cases which compare something "or equal" by swapping arguments.
(rule 2 (emit_cmp_i128 (CC.NLE) a_hi a_lo b_hi b_lo)
(emit_cmp_i128 (CC.L) b_hi b_lo a_hi a_lo))
(rule 2 (emit_cmp_i128 (CC.LE) a_hi a_lo b_hi b_lo)
(emit_cmp_i128 (CC.NL) b_hi b_lo a_hi a_lo))
(rule 2 (emit_cmp_i128 (CC.NBE) a_hi a_lo b_hi b_lo)
(emit_cmp_i128 (CC.B) b_hi b_lo a_hi a_lo))
(rule 2 (emit_cmp_i128 (CC.BE) a_hi a_lo b_hi b_lo)
(emit_cmp_i128 (CC.NB) b_hi b_lo a_hi a_lo))
;; 128-bit strict equality/inequality can't be easily tested using subtraction
;; but we can quickly determine whether any bits are different instead.
(rule 1 (emit_cmp_i128 (cc_nz_or_z cc) a_hi a_lo b_hi b_lo)
(let ((same_lo Reg (x64_xor $I64 a_lo b_lo))
(same_hi Reg (x64_xor $I64 a_hi b_hi)))
(icmp_cond_result
(x64_alurmi_flags_side_effect (AluRmiROpcode.Or) $I64 same_lo same_hi)
cc)))
;; The only cases left are L/NL/B/NB which we can implement with a sub/sbb
;; sequence. But since we don't care about anything but the flags we can
;; replace the sub with cmp, which avoids clobbering one of the registers.
(rule 0 (emit_cmp_i128 cc a_hi a_lo b_hi b_lo)
(icmp_cond_result
(produces_flags_concat
(x64_cmp (OperandSize.Size64) a_lo b_lo)
(x64_alurmi_flags_side_effect (AluRmiROpcode.Sbb) $I64 a_hi b_hi))
cc))
(type FcmpCondResult
(enum
;; The given condition code must be set.
(Condition (producer ProducesFlags) (cc CC))
;; Both condition codes must be set.
(AndCondition (producer ProducesFlags) (cc1 CC) (cc2 CC))
;; Either of the conditions codes must be set.
(OrCondition (producer ProducesFlags) (cc1 CC) (cc2 CC))))
;; Lower a FcmpCondResult to a boolean value in a register.
(decl lower_fcmp_bool (FcmpCondResult) ValueRegs)
(rule (lower_fcmp_bool (FcmpCondResult.Condition producer cc))
(with_flags producer (x64_setcc cc)))
(rule (lower_fcmp_bool (FcmpCondResult.AndCondition producer cc1 cc2))
(let ((maybe ValueRegs (with_flags producer
(consumes_flags_concat
(x64_setcc cc1)
(x64_setcc cc2))))
(maybe0 Gpr (value_regs_get_gpr maybe 0))
(maybe1 Gpr (value_regs_get_gpr maybe 1)))
(value_reg (x64_and $I8 maybe0 maybe1))))
(rule (lower_fcmp_bool (FcmpCondResult.OrCondition producer cc1 cc2))
(let ((maybe ValueRegs (with_flags producer
(consumes_flags_concat
(x64_setcc cc1)
(x64_setcc cc2))))
(maybe0 Gpr (value_regs_get_gpr maybe 0))
(maybe1 Gpr (value_regs_get_gpr maybe 1)))
(value_reg (x64_or $I8 maybe0 maybe1))))
;; CLIF's `fcmp` instruction always operates on XMM registers--both scalar and
;; vector. For the scalar versions, we use the flag-setting behavior of the
;; `UCOMIS*` instruction to `SETcc` a 0 or 1 in a GPR register. Note that CLIF's
;; `select` uses the same kind of flag-setting behavior but chooses values other
;; than 0 or 1.
;;
;; Checking the result of `UCOMIS*` is unfortunately difficult in some cases
;; because we do not have `SETcc` instructions that explicitly check
;; simultaneously for the condition (i.e., `eq`, `le`, `gt`, etc.) *and*
;; orderedness. Instead, we must check the flags multiple times. The UCOMIS*
;; documentation (see Intel's Software Developer's Manual, volume 2, chapter 4)
;; is helpful:
;; - unordered assigns Z = 1, P = 1, C = 1
;; - greater than assigns Z = 0, P = 0, C = 0
;; - less than assigns Z = 0, P = 0, C = 1
;; - equal assigns Z = 1, P = 0, C = 0
(decl emit_fcmp (FloatCC Value Value) FcmpCondResult)
(rule (emit_fcmp (FloatCC.Equal) a @ (value_type (ty_scalar_float ty)) b)
(FcmpCondResult.AndCondition (x64_ucomis ty a b) (CC.NP) (CC.Z)))
(rule (emit_fcmp (FloatCC.NotEqual) a @ (value_type (ty_scalar_float ty)) b)
(FcmpCondResult.OrCondition (x64_ucomis ty a b) (CC.P) (CC.NZ)))
;; Some scalar lowerings correspond to one condition code.
(rule (emit_fcmp (FloatCC.Ordered) a @ (value_type (ty_scalar_float ty)) b)
(FcmpCondResult.Condition (x64_ucomis ty a b) (CC.NP)))
(rule (emit_fcmp (FloatCC.Unordered) a @ (value_type (ty_scalar_float ty)) b)
(FcmpCondResult.Condition (x64_ucomis ty a b) (CC.P)))
(rule (emit_fcmp (FloatCC.OrderedNotEqual) a @ (value_type (ty_scalar_float ty)) b)
(FcmpCondResult.Condition (x64_ucomis ty a b) (CC.NZ)))
(rule (emit_fcmp (FloatCC.UnorderedOrEqual) a @ (value_type (ty_scalar_float ty)) b)
(FcmpCondResult.Condition (x64_ucomis ty a b) (CC.Z)))
(rule (emit_fcmp (FloatCC.GreaterThan) a @ (value_type (ty_scalar_float ty)) b)
(FcmpCondResult.Condition (x64_ucomis ty a b) (CC.NBE)))
(rule (emit_fcmp (FloatCC.GreaterThanOrEqual) a @ (value_type (ty_scalar_float ty)) b)
(FcmpCondResult.Condition (x64_ucomis ty a b) (CC.NB)))
(rule (emit_fcmp (FloatCC.UnorderedOrLessThan) a @ (value_type (ty_scalar_float ty)) b)
(FcmpCondResult.Condition (x64_ucomis ty a b) (CC.B)))
(rule (emit_fcmp (FloatCC.UnorderedOrLessThanOrEqual) a @ (value_type (ty_scalar_float ty)) b)
(FcmpCondResult.Condition (x64_ucomis ty a b) (CC.BE)))
;; Other scalar lowerings are made possible by flipping the operands and
;; reversing the condition code.
(rule (emit_fcmp (FloatCC.LessThan) a @ (value_type (ty_scalar_float ty)) b)
;; Same flags as `GreaterThan`.
(FcmpCondResult.Condition (x64_ucomis ty b a) (CC.NBE)))
(rule (emit_fcmp (FloatCC.LessThanOrEqual) a @ (value_type (ty_scalar_float ty)) b)
;; Same flags as `GreaterThanOrEqual`.
(FcmpCondResult.Condition (x64_ucomis ty b a) (CC.NB)))
(rule (emit_fcmp (FloatCC.UnorderedOrGreaterThan) a @ (value_type (ty_scalar_float ty)) b)
;; Same flags as `UnorderedOrLessThan`.
(FcmpCondResult.Condition (x64_ucomis ty b a) (CC.B)))
(rule (emit_fcmp (FloatCC.UnorderedOrGreaterThanOrEqual) a @ (value_type (ty_scalar_float ty)) b)
;; Same flags as `UnorderedOrLessThanOrEqual`.
(FcmpCondResult.Condition (x64_ucomis ty b a) (CC.BE)))
;;;; Type Guards ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; A type guard for matching ints and bools up to 64 bits, or 64 bit references.
(decl ty_int_bool_or_ref () Type)
(extern extractor ty_int_bool_or_ref ty_int_bool_or_ref)
;;;; Atomics ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(decl x64_mfence () SideEffectNoResult)
(rule (x64_mfence)
(SideEffectNoResult.Inst (MInst.Fence (FenceKind.MFence))))
(decl x64_cmpxchg (Type Gpr Gpr SyntheticAmode) Gpr)
(rule (x64_cmpxchg ty expected replacement addr)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.LockCmpxchg ty replacement expected addr dst))))
dst))
(decl x64_atomic_rmw_seq (Type MachAtomicRmwOp SyntheticAmode Gpr) Gpr)
(rule (x64_atomic_rmw_seq ty op mem input)
(let ((dst WritableGpr (temp_writable_gpr))
(tmp WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.AtomicRmwSeq ty op mem input tmp dst))))
dst))
;; CLIF IR has one enumeration for atomic operations (`AtomicRmwOp`) while the
;; mach backend has another (`MachAtomicRmwOp`)--this converts one to the other.
(type MachAtomicRmwOp extern (enum))
(decl atomic_rmw_op_to_mach_atomic_rmw_op (AtomicRmwOp) MachAtomicRmwOp)
(extern constructor atomic_rmw_op_to_mach_atomic_rmw_op atomic_rmw_op_to_mach_atomic_rmw_op)
;;;; Casting ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(decl bitcast_xmm_to_gpr (u8 Xmm) Gpr)
(rule (bitcast_xmm_to_gpr 16 src)
(x64_pextrw src 0))
(rule (bitcast_xmm_to_gpr 32 src)
(x64_movd_to_gpr src))
(rule (bitcast_xmm_to_gpr 64 src)
(x64_movq_to_gpr src))
(decl bitcast_xmm_to_gprs (Xmm) ValueRegs)
(rule (bitcast_xmm_to_gprs src)
(value_regs (x64_movq_to_gpr src) (x64_movq_to_gpr (x64_pshufd src 0b11101110))))
(decl bitcast_gpr_to_xmm (u8 Gpr) Xmm)
(rule (bitcast_gpr_to_xmm 16 src)
(x64_pinsrw (xmm_uninit_value) src 0))
(rule (bitcast_gpr_to_xmm 32 src)
(x64_movd_to_xmm src))
(rule (bitcast_gpr_to_xmm 64 src)
(x64_movq_to_xmm src))
(decl bitcast_gprs_to_xmm (ValueRegs) Xmm)
(rule (bitcast_gprs_to_xmm src)
(x64_punpcklqdq (x64_movq_to_xmm (value_regs_get_gpr src 0)) (x64_movq_to_xmm (value_regs_get_gpr src 1))))
;;;; Stack Addresses ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(decl stack_addr_impl (StackSlot Offset32) Gpr)
(rule (stack_addr_impl stack_slot offset)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (abi_stackslot_addr dst stack_slot offset))))
dst))
;;;; Division/Remainders ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Helper for creating `CheckedSRemSeq` instructions.
(decl x64_checked_srem_seq (OperandSize Gpr Gpr Gpr) ValueRegs)
(rule (x64_checked_srem_seq size dividend_lo dividend_hi divisor)
(let ((dst_quotient WritableGpr (temp_writable_gpr))
(dst_remainder WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.CheckedSRemSeq size dividend_lo dividend_hi divisor dst_quotient dst_remainder))))
(value_regs dst_quotient dst_remainder)))
(decl x64_checked_srem_seq8 (Gpr Gpr) Gpr)
(rule (x64_checked_srem_seq8 dividend divisor)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.CheckedSRemSeq8 dividend divisor dst))))
dst))
;; Helper for creating `Div8` instructions
(decl x64_div8 (Gpr GprMem DivSignedness TrapCode) Gpr)
(rule (x64_div8 dividend divisor sign trap)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.Div8 sign trap divisor dividend dst))))
dst))
;; Helper for creating `Div` instructions
;;
;; Two registers are returned through `ValueRegs` where the first is the
;; quotient and the second is the remainder.
(decl x64_div (Gpr Gpr GprMem OperandSize DivSignedness TrapCode) ValueRegs)
(rule (x64_div dividend_lo dividend_hi divisor size sign trap)
(let ((dst_quotient WritableGpr (temp_writable_gpr))
(dst_remainder WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.Div size sign trap divisor dividend_lo dividend_hi dst_quotient dst_remainder))))
(value_regs dst_quotient dst_remainder)))
;; Helper for `Div`, returning the quotient and discarding the remainder.
(decl x64_div_quotient (Gpr Gpr GprMem OperandSize DivSignedness TrapCode) ValueRegs)
(rule (x64_div_quotient dividend_lo dividend_hi divisor size sign trap)
(value_regs_get (x64_div dividend_lo dividend_hi divisor size sign trap) 0))
;; Helper for `Div`, returning the remainder and discarding the quotient.
(decl x64_div_remainder (Gpr Gpr GprMem OperandSize DivSignedness TrapCode) ValueRegs)
(rule (x64_div_remainder dividend_lo dividend_hi divisor size sign trap)
(value_regs_get (x64_div dividend_lo dividend_hi divisor size sign trap) 1))
;; Helper for creating `SignExtendData` instructions
(decl x64_sign_extend_data (Gpr OperandSize) Gpr)
(rule (x64_sign_extend_data src size)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.SignExtendData size src dst))))
dst))
;;;; Pinned Register ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(decl read_pinned_gpr () Gpr)
(rule (read_pinned_gpr)
(mov_from_preg (preg_pinned)))
(decl write_pinned_gpr (Gpr) SideEffectNoResult)
(rule (write_pinned_gpr val)
(mov_to_preg (preg_pinned) val))
;;;; Shuffle ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Produce a mask suitable for use with `pshufb` for permuting the argument to
;; shuffle, when the arguments are the same (i.e. `shuffle a a mask`). This will
;; map all indices in the range 0..31 to the range 0..15.
(decl shuffle_0_31_mask (VecMask) VCodeConstant)
(extern constructor shuffle_0_31_mask shuffle_0_31_mask)
;; Produce a mask suitable for use with `pshufb` for permuting the lhs of a
;; `shuffle` operation (lanes 0-15).
(decl shuffle_0_15_mask (VecMask) VCodeConstant)
(extern constructor shuffle_0_15_mask shuffle_0_15_mask)
;; Produce a mask suitable for use with `pshufb` for permuting the rhs of a
;; `shuffle` operation (lanes 16-31).
(decl shuffle_16_31_mask (VecMask) VCodeConstant)
(extern constructor shuffle_16_31_mask shuffle_16_31_mask)
;; Produce a permutation suitable for use with `vpermi2b`, for permuting two
;; I8X16 vectors simultaneously.
;;
;; NOTE: `vpermi2b` will mask the indices in each lane to 5 bits when indexing
;; into vectors, so this constructor makes no effort to handle indices that are
;; larger than 31. If you are lowering a clif opcode like `shuffle` that has
;; special behavior for out of bounds indices (emitting a `0` in the resulting
;; vector in the case of `shuffle`) you'll need to handle that behavior
;; separately.
(decl perm_from_mask (VecMask) VCodeConstant)
(extern constructor perm_from_mask perm_from_mask)
;; If the mask that would be given to `shuffle` contains any out-of-bounds
;; indices, return a mask that will zero those.
(decl perm_from_mask_with_zeros (VCodeConstant VCodeConstant) VecMask)
(extern extractor perm_from_mask_with_zeros perm_from_mask_with_zeros)
;;;; TLS Values ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Helper for emitting ElfTlsGetAddr.
(decl elf_tls_get_addr (ExternalName) Gpr)
(rule (elf_tls_get_addr name)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.ElfTlsGetAddr name dst))))
dst))
;; Helper for emitting MachOTlsGetAddr.
(decl macho_tls_get_addr (ExternalName) Gpr)
(rule (macho_tls_get_addr name)
(let ((dst WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.MachOTlsGetAddr name dst))))
dst))
;; Helper for emitting CoffTlsGetAddr.
(decl coff_tls_get_addr (ExternalName) Gpr)
(rule (coff_tls_get_addr name)
(let ((dst WritableGpr (temp_writable_gpr))
(tmp WritableGpr (temp_writable_gpr))
(_ Unit (emit (MInst.CoffTlsGetAddr name dst tmp))))
dst))
;;;; Automatic conversions ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(convert Gpr InstOutput output_gpr)
(convert Value Gpr put_in_gpr)
(convert Value GprMem put_in_gpr_mem)
(convert Value GprMemImm put_in_gpr_mem_imm)
(convert Value RegMem put_in_reg_mem)
(convert Value RegMemImm put_in_reg_mem_imm)
(convert Gpr GprMemImm gpr_to_gpr_mem_imm)
(convert Gpr GprMem gpr_to_gpr_mem)
(convert Gpr Reg gpr_to_reg)
(convert GprMem RegMem gpr_mem_to_reg_mem)
(convert Reg Gpr gpr_new)
(convert WritableGpr Gpr writable_gpr_to_gpr)
(convert RegMemImm GprMemImm gpr_mem_imm_new)
(convert RegMem GprMem reg_mem_to_gpr_mem)
(convert RegMem RegMemImm reg_mem_to_reg_mem_imm)
(convert Reg GprMem reg_to_gpr_mem)
(convert Reg GprMemImm reg_to_gpr_mem_imm)
(convert WritableGpr WritableReg writable_gpr_to_reg)
(convert WritableGpr Reg writable_gpr_to_r_reg)
(convert WritableGpr GprMem writable_gpr_to_gpr_mem)
(convert WritableGpr ValueRegs writable_gpr_to_value_regs)
(convert Xmm InstOutput output_xmm)
(convert Value Xmm put_in_xmm)
(convert Value XmmMem put_in_xmm_mem)
(convert Value XmmMemAligned put_in_xmm_mem_aligned)
(convert Value XmmMemImm put_in_xmm_mem_imm)
(convert Xmm Reg xmm_to_reg)
(convert Xmm RegMem xmm_to_reg_mem)
(convert Reg Xmm xmm_new)
(convert Reg XmmMem reg_to_xmm_mem)
(convert Reg RegMemImm reg_to_reg_mem_imm)
(convert RegMem XmmMem reg_mem_to_xmm_mem)
(convert Xmm XmmMem xmm_to_xmm_mem)
(convert Xmm XmmMemImm xmm_to_xmm_mem_imm)
(convert Xmm XmmMemAligned xmm_to_xmm_mem_aligned)
(convert XmmMem XmmMemImm xmm_mem_to_xmm_mem_imm)
(convert XmmMem RegMem xmm_mem_to_reg_mem)
(convert RegMemImm XmmMemImm xmm_mem_imm_new)
(convert WritableXmm Xmm writable_xmm_to_xmm)
(convert WritableXmm WritableReg writable_xmm_to_reg)
(convert WritableXmm Reg writable_xmm_to_r_reg)
(convert WritableXmm XmmMem writable_xmm_to_xmm_mem)
(convert WritableXmm ValueRegs writable_xmm_to_value_regs)
;; Note that these conversions will introduce a `movupd` instruction if
;; the memory location is not aligned to a 16-byte boundary. This is primarily
;; used to convert `XmmMem` inputs, which themselves were typically created
;; via the `put_in_xmm_mem` constructor, into operands of SSE instructions.
;; Most pre-AVX instructions working with 16-bytes of data (e.g. full xmm
;; registers) require 16-byte alignment.
(convert XmmMem XmmMemAligned xmm_mem_to_xmm_mem_aligned)
(convert XmmMemImm XmmMemAlignedImm xmm_mem_imm_to_xmm_mem_aligned_imm)
(convert Gpr Imm8Gpr gpr_to_imm8_gpr)
(convert Imm8Reg Imm8Gpr imm8_reg_to_imm8_gpr)
(convert Amode SyntheticAmode amode_to_synthetic_amode)
(convert Amode GprMem amode_to_gpr_mem)
(convert SyntheticAmode GprMem synthetic_amode_to_gpr_mem)
(convert Amode XmmMem amode_to_xmm_mem)
(convert SyntheticAmode XmmMem synthetic_amode_to_xmm_mem)
(convert Amode XmmMemAligned amode_to_xmm_mem_aligned)
(convert SyntheticAmode XmmMemAligned synthetic_amode_to_xmm_mem_aligned)
(convert VCodeConstant SyntheticAmode const_to_synthetic_amode)
(convert VCodeConstant XmmMem const_to_xmm_mem)
(convert VCodeConstant RegMem const_to_reg_mem)
(convert IntCC CC intcc_to_cc)
(convert AtomicRmwOp MachAtomicRmwOp atomic_rmw_op_to_mach_atomic_rmw_op)
(convert SinkableLoad RegMem sink_load_to_reg_mem)
(convert SinkableLoad GprMem sink_load_to_gpr_mem)
(convert SinkableLoad RegMemImm sink_load_to_reg_mem_imm)
(convert SinkableLoad GprMemImm sink_load_to_gpr_mem_imm)
(convert SinkableLoad XmmMem sink_load_to_xmm_mem)
(convert SinkableLoad SyntheticAmode sink_load)
(decl reg_to_xmm_mem (Reg) XmmMem)
(rule (reg_to_xmm_mem r)
(xmm_to_xmm_mem (xmm_new r)))
(decl xmm_to_reg_mem (Reg) XmmMem)
(rule (xmm_to_reg_mem r)
(RegMem.Reg (xmm_to_reg r)))
(decl writable_gpr_to_r_reg (WritableGpr) Reg)
(rule (writable_gpr_to_r_reg w_gpr)
(writable_reg_to_reg (writable_gpr_to_reg w_gpr)))
(decl writable_gpr_to_gpr_mem (WritableGpr) GprMem)
(rule (writable_gpr_to_gpr_mem w_gpr)
(gpr_to_gpr_mem w_gpr))
(decl writable_gpr_to_value_regs (WritableGpr) ValueRegs)
(rule (writable_gpr_to_value_regs w_gpr)
(value_reg w_gpr))
(decl writable_xmm_to_r_reg (WritableXmm) Reg)
(rule (writable_xmm_to_r_reg w_xmm)
(writable_reg_to_reg (writable_xmm_to_reg w_xmm)))
(decl writable_xmm_to_xmm_mem (WritableXmm) XmmMem)
(rule (writable_xmm_to_xmm_mem w_xmm)
(xmm_to_xmm_mem (writable_xmm_to_xmm w_xmm)))
(decl writable_xmm_to_value_regs (WritableXmm) ValueRegs)
(rule (writable_xmm_to_value_regs w_xmm)
(value_reg w_xmm))
(decl synthetic_amode_to_gpr_mem (SyntheticAmode) GprMem)
(decl amode_to_gpr_mem (Amode) GprMem)
(rule (amode_to_gpr_mem amode)
(amode_to_synthetic_amode amode))
(rule (synthetic_amode_to_gpr_mem amode)
(synthetic_amode_to_reg_mem amode))
(decl amode_to_xmm_mem (Amode) XmmMem)
(rule (amode_to_xmm_mem amode)
(amode_to_synthetic_amode amode))
(decl synthetic_amode_to_xmm_mem (SyntheticAmode) XmmMem)
(rule (synthetic_amode_to_xmm_mem amode)
(synthetic_amode_to_reg_mem amode))
(decl const_to_synthetic_amode (VCodeConstant) SyntheticAmode)
(extern constructor const_to_synthetic_amode const_to_synthetic_amode)
(decl const_to_xmm_mem (VCodeConstant) XmmMem)
(rule (const_to_xmm_mem c) (const_to_synthetic_amode c))
(decl const_to_reg_mem (VCodeConstant) RegMem)
(rule (const_to_reg_mem c) (RegMem.Mem (const_to_synthetic_amode c)))
(decl xmm_to_xmm_mem_aligned (Xmm) XmmMemAligned)
(rule (xmm_to_xmm_mem_aligned reg) (xmm_mem_to_xmm_mem_aligned reg))
(decl amode_to_xmm_mem_aligned (Amode) XmmMemAligned)
(rule (amode_to_xmm_mem_aligned mode) (amode_to_xmm_mem mode))
(decl synthetic_amode_to_xmm_mem_aligned (SyntheticAmode) XmmMemAligned)
(rule (synthetic_amode_to_xmm_mem_aligned mode) (synthetic_amode_to_xmm_mem mode))
(decl put_in_xmm_mem_aligned (Value) XmmMemAligned)
(rule (put_in_xmm_mem_aligned val) (put_in_xmm_mem val))
(decl mov_to_preg (PReg Gpr) SideEffectNoResult)
(rule (mov_to_preg dst src)
(SideEffectNoResult.Inst (MInst.MovToPReg src dst)))
(decl preg_rbp () PReg)
(extern constructor preg_rbp preg_rbp)
(decl preg_rsp () PReg)
(extern constructor preg_rsp preg_rsp)
(decl preg_pinned () PReg)
(extern constructor preg_pinned preg_pinned)
(decl x64_rbp () Reg)
(rule (x64_rbp)
(mov_from_preg (preg_rbp)))
(decl x64_rsp () Reg)
(rule (x64_rsp)
(mov_from_preg (preg_rsp)))
;;;; Helpers for Emitting LibCalls ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(type LibCall extern
(enum
FmaF32
FmaF64
CeilF32
CeilF64
FloorF32
FloorF64
NearestF32
NearestF64
TruncF32
TruncF64
X86Pshufb))
(decl libcall_1 (LibCall Reg) Reg)
(extern constructor libcall_1 libcall_1)
(decl libcall_2 (LibCall Reg Reg) Reg)
(extern constructor libcall_2 libcall_2)
(decl libcall_3 (LibCall Reg Reg Reg) Reg)
(extern constructor libcall_3 libcall_3)