cairo-lang-lowering 2.17.0

Cairo lowering phase.
Documentation
//! > Test arm pattern destructure for match-enum variable (with refs and implicits).

//! > test_runner_name
test_match_optimizer

//! > function_code
fn foo(mut z: felt252) {
    let y = bar(ref z);
    match y {
        MyEnum::a((_x, (_y, _z))) => {},
        MyEnum::b((_x, _y)) => {},
        MyEnum::c(_x) => {},
        MyEnum::d((_x, _y)) => {},
        MyEnum::e(_x) => {},
        MyEnum::f((_x,)) => {},
        MyEnum::g(_x) => {},
        MyEnum::h(_x) => {},
    }
}

//! > function_name
foo

//! > module_code
enum MyEnum {
    a: (felt252, (felt252, felt252)),
    b: (felt252, (felt252, felt252)),
    c: (felt252, (felt252, felt252)),
    d: (felt252, felt252),
    e: (felt252, felt252),
    f: (felt252,),
    g: (felt252,),
    h: felt252,
}
extern fn bar(ref r: felt252) -> MyEnum implicits(RangeCheck) nopanic;

//! > semantic_diagnostics

//! > lowering_diagnostics

//! > before
Parameters: v0: core::felt252
blk0 (root):
Statements:
End:
  Match(match test::bar(v0) {
    MyEnum::a(v1, v2, v3) => blk1,
    MyEnum::b(v4, v5, v6) => blk2,
    MyEnum::c(v7, v8, v9) => blk3,
    MyEnum::d(v10, v11, v12) => blk4,
    MyEnum::e(v13, v14, v15) => blk5,
    MyEnum::f(v16, v17) => blk6,
    MyEnum::g(v18, v19) => blk7,
    MyEnum::h(v20, v21) => blk8,
  })

blk1:
Statements:
  (v22: (core::felt252, (core::felt252, core::felt252))) <- struct_construct(v2, v3)
  (v23: test::MyEnum) <- MyEnum::a(v22)
End:
  Goto(blk9, {v23 -> v24})

blk2:
Statements:
  (v25: (core::felt252, (core::felt252, core::felt252))) <- struct_construct(v5, v6)
  (v26: test::MyEnum) <- MyEnum::b(v25)
End:
  Goto(blk9, {v26 -> v24})

blk3:
Statements:
  (v27: (core::felt252, (core::felt252, core::felt252))) <- struct_construct(v8, v9)
  (v28: test::MyEnum) <- MyEnum::c(v27)
End:
  Goto(blk9, {v28 -> v24})

blk4:
Statements:
  (v29: (core::felt252, core::felt252)) <- struct_construct(v11, v12)
  (v30: test::MyEnum) <- MyEnum::d(v29)
End:
  Goto(blk9, {v30 -> v24})

blk5:
Statements:
  (v31: (core::felt252, core::felt252)) <- struct_construct(v14, v15)
  (v32: test::MyEnum) <- MyEnum::e(v31)
End:
  Goto(blk9, {v32 -> v24})

blk6:
Statements:
  (v33: (core::felt252,)) <- struct_construct(v17)
  (v34: test::MyEnum) <- MyEnum::f(v33)
End:
  Goto(blk9, {v34 -> v24})

blk7:
Statements:
  (v35: (core::felt252,)) <- struct_construct(v19)
  (v36: test::MyEnum) <- MyEnum::g(v35)
End:
  Goto(blk9, {v36 -> v24})

blk8:
Statements:
  (v37: test::MyEnum) <- MyEnum::h(v21)
End:
  Goto(blk9, {v37 -> v24})

blk9:
Statements:
End:
  Match(match_enum(v24) {
    MyEnum::a(v38) => blk10,
    MyEnum::b(v39) => blk11,
    MyEnum::c(v40) => blk12,
    MyEnum::d(v41) => blk13,
    MyEnum::e(v42) => blk14,
    MyEnum::f(v43) => blk15,
    MyEnum::g(v44) => blk16,
    MyEnum::h(v45) => blk17,
  })

blk10:
Statements:
End:
  Goto(blk18, {})

blk11:
Statements:
End:
  Goto(blk18, {})

blk12:
Statements:
End:
  Goto(blk18, {})

blk13:
Statements:
End:
  Goto(blk18, {})

blk14:
Statements:
End:
  Goto(blk18, {})

blk15:
Statements:
End:
  Goto(blk18, {})

blk16:
Statements:
End:
  Goto(blk18, {})

blk17:
Statements:
End:
  Goto(blk18, {})

blk18:
Statements:
End:
  Return()

//! > after
Parameters: v0: core::felt252
blk0 (root):
Statements:
End:
  Match(match test::bar(v0) {
    MyEnum::a(v1, v2, v3) => blk1,
    MyEnum::b(v4, v5, v6) => blk2,
    MyEnum::c(v7, v8, v9) => blk3,
    MyEnum::d(v10, v11, v12) => blk4,
    MyEnum::e(v13, v14, v15) => blk5,
    MyEnum::f(v16, v17) => blk6,
    MyEnum::g(v18, v19) => blk7,
    MyEnum::h(v20, v21) => blk8,
  })

blk1:
Statements:
  (v22: (core::felt252, (core::felt252, core::felt252))) <- struct_construct(v2, v3)
End:
  Goto(blk10, {v22 -> v38})

blk2:
Statements:
  (v25: (core::felt252, (core::felt252, core::felt252))) <- struct_construct(v5, v6)
End:
  Goto(blk11, {v25 -> v39})

blk3:
Statements:
  (v27: (core::felt252, (core::felt252, core::felt252))) <- struct_construct(v8, v9)
End:
  Goto(blk12, {v27 -> v40})

blk4:
Statements:
  (v29: (core::felt252, core::felt252)) <- struct_construct(v11, v12)
End:
  Goto(blk13, {v29 -> v41})

blk5:
Statements:
  (v31: (core::felt252, core::felt252)) <- struct_construct(v14, v15)
End:
  Goto(blk14, {v31 -> v42})

blk6:
Statements:
  (v33: (core::felt252,)) <- struct_construct(v17)
End:
  Goto(blk15, {v33 -> v43})

blk7:
Statements:
  (v35: (core::felt252,)) <- struct_construct(v19)
End:
  Goto(blk16, {v35 -> v44})

blk8:
Statements:
End:
  Goto(blk17, {v21 -> v45})

blk9:
Statements:
End:
  Match(match_enum(v24) {
    MyEnum::a(v63) => blk26,
    MyEnum::b(v62) => blk25,
    MyEnum::c(v61) => blk24,
    MyEnum::d(v60) => blk23,
    MyEnum::e(v59) => blk22,
    MyEnum::f(v58) => blk21,
    MyEnum::g(v57) => blk20,
    MyEnum::h(v56) => blk19,
  })

blk10:
Statements:
End:
  Goto(blk18, {})

blk11:
Statements:
End:
  Goto(blk18, {})

blk12:
Statements:
End:
  Goto(blk18, {})

blk13:
Statements:
End:
  Goto(blk18, {})

blk14:
Statements:
End:
  Goto(blk18, {})

blk15:
Statements:
End:
  Goto(blk18, {})

blk16:
Statements:
End:
  Goto(blk18, {})

blk17:
Statements:
End:
  Goto(blk18, {})

blk18:
Statements:
End:
  Return()

blk19:
Statements:
End:
  Goto(blk17, {v56 -> v45})

blk20:
Statements:
End:
  Goto(blk16, {v57 -> v44})

blk21:
Statements:
End:
  Goto(blk15, {v58 -> v43})

blk22:
Statements:
End:
  Goto(blk14, {v59 -> v42})

blk23:
Statements:
End:
  Goto(blk13, {v60 -> v41})

blk24:
Statements:
End:
  Goto(blk12, {v61 -> v40})

blk25:
Statements:
End:
  Goto(blk11, {v62 -> v39})

blk26:
Statements:
End:
  Goto(blk10, {v63 -> v38})