cairo-lang-lowering 2.4.1

Cairo lowering phase.
Documentation 
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//! > Test match optimizer simple scenario.

//! > test_runner_name
test_branch_inversion

//! > function
fn foo(a: bool, x: felt252) -> felt252 {
    if !a {
        1
    } else {
        x
    }
}

//! > function_name
foo

//! > module_code

//! > semantic_diagnostics

//! > lowering_diagnostics

//! > before
Parameters: v0: core::bool, v1: core::felt252
blk0 (root):
Statements:
  (v7: core::bool) <- core::bool_not_impl(v0)
End:
  Match(match_enum(v7) {
    bool::False(v5) => blk1,
    bool::True(v3) => blk2,
  })

blk1:
Statements:
End:
  Goto(blk3, {v1 -> v6})

blk2:
Statements:
  (v4: core::felt252) <- 1u
End:
  Goto(blk3, {v4 -> v6})

blk3:
Statements:
End:
  Return(v6)

//! > after
Parameters: v0: core::bool, v1: core::felt252
blk0 (root):
Statements:
  (v7: core::bool) <- core::bool_not_impl(v0)
End:
  Match(match_enum(v0) {
    bool::False(v3) => blk2,
    bool::True(v5) => blk1,
  })

blk1:
Statements:
End:
  Goto(blk3, {v1 -> v6})

blk2:
Statements:
  (v4: core::felt252) <- 1u
End:
  Goto(blk3, {v4 -> v6})

blk3:
Statements:
End:
  Return(v6)