llir/values/constant/
constant.rs

1use llvm_sys::core::LLVMGetValueKind;
2use llvm_sys::prelude::LLVMValueRef;
3use llvm_sys::LLVMValueKind;
4
5use super::*;
6use crate::values::*;
7use crate::*;
8
9/// [Constants](https://llvm.org/docs/LangRef.html#constants)
10///
11/// Int, Float, and Null are [Simple Constants](https://llvm.org/docs/LangRef.html#simple-constants)
12///
13/// Struct, Array, and Vector are [Complex Constants](https://llvm.org/docs/LangRef.html#complex-constants)
14#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
15pub enum Constant<'ctx> {
16  Int(IntConstant<'ctx>),
17  Float(FloatConstant<'ctx>),
18  Null(NullConstant<'ctx>),
19  Struct(StructConstant<'ctx>),
20  Array(ArrayConstant<'ctx>),
21  Vector(VectorConstant<'ctx>),
22  BlockAddress(BlockAddress<'ctx>),
23  Undef(Undef<'ctx>),
24  Global(Global<'ctx>),
25  Function(Function<'ctx>),
26  ConstExpr(ConstExpr<'ctx>),
27  Other(GenericValue<'ctx>),
28}
29
30impl<'ctx> Constant<'ctx> {
31  /// Turn constant into an operand
32  pub fn as_operand(&self) -> Operand<'ctx> {
33    Operand::Constant(*self)
34  }
35}
36
37impl<'ctx> GetType<'ctx> for Constant<'ctx> {}
38
39impl<'ctx> ValueRef for Constant<'ctx> {
40  fn value_ref(&self) -> LLVMValueRef {
41    match self {
42      Self::Int(ic) => ic.value_ref(),
43      Self::Float(fc) => fc.value_ref(),
44      Self::Null(nc) => nc.value_ref(),
45      Self::Struct(sc) => sc.value_ref(),
46      Self::Array(ac) => ac.value_ref(),
47      Self::Vector(vc) => vc.value_ref(),
48      Self::BlockAddress(ba) => ba.value_ref(),
49      Self::Undef(ud) => ud.value_ref(),
50      Self::Global(gc) => gc.value_ref(),
51      Self::Function(fc) => fc.value_ref(),
52      Self::ConstExpr(cec) => cec.value_ref(),
53      Self::Other(oc) => oc.value_ref(),
54    }
55  }
56}
57
58impl<'ctx> FromLLVMValue for Constant<'ctx> {
59  fn from_llvm(ptr: LLVMValueRef) -> Self {
60    use LLVMValueKind::*;
61    match unsafe { LLVMGetValueKind(ptr) } {
62      LLVMConstantIntValueKind => Self::Int(IntConstant::from_llvm(ptr)),
63      LLVMConstantFPValueKind => Self::Float(FloatConstant::from_llvm(ptr)),
64      LLVMConstantPointerNullValueKind => Self::Null(NullConstant::from_llvm(ptr)),
65      LLVMConstantStructValueKind => Self::Struct(StructConstant::from_llvm(ptr)),
66      LLVMConstantArrayValueKind => Self::Array(ArrayConstant::from_llvm(ptr)),
67      LLVMConstantDataArrayValueKind => Self::Array(ArrayConstant::from_llvm(ptr)),
68      LLVMConstantVectorValueKind => Self::Vector(VectorConstant::from_llvm(ptr)),
69      LLVMConstantDataVectorValueKind => Self::Vector(VectorConstant::from_llvm(ptr)),
70      LLVMBlockAddressValueKind => Self::BlockAddress(BlockAddress::from_llvm(ptr)),
71      LLVMUndefValueValueKind => Self::Undef(Undef::from_llvm(ptr)),
72      LLVMGlobalIFuncValueKind | LLVMFunctionValueKind => Self::Function(Function::from_llvm(ptr)),
73      LLVMGlobalAliasValueKind | LLVMGlobalVariableValueKind => Self::Global(Global::from_llvm(ptr)),
74      LLVMConstantExprValueKind => Self::ConstExpr(ConstExpr::from_llvm(ptr)),
75      _ => Self::Other(GenericValue::from_llvm(ptr)),
76    }
77  }
78}
79
80impl<'ctx> AsConstant<'ctx> for Constant<'ctx> {
81  fn as_constant(&self) -> Constant<'ctx> {
82    self.clone()
83  }
84}
85
86impl_as_operand_for_constant!(Constant);
llir/values/constant/constant.rs

llir/values/constant/
constant.rs
