diff options
Diffstat (limited to 'yjit/src/asm/arm64/arg/condition.rs')
| -rw-r--r-- | yjit/src/asm/arm64/arg/condition.rs | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/yjit/src/asm/arm64/arg/condition.rs b/yjit/src/asm/arm64/arg/condition.rs index e791e4b078..bb9ce570c3 100644 --- a/yjit/src/asm/arm64/arg/condition.rs +++ b/yjit/src/asm/arm64/arg/condition.rs @@ -19,4 +19,34 @@ impl Condition { pub const GT: u8 = 0b1100; // greater than (signed) pub const LE: u8 = 0b1101; // less than or equal to (signed) pub const AL: u8 = 0b1110; // always -} + + pub const fn inverse(condition: u8) -> u8 { + match condition { + Condition::EQ => Condition::NE, + Condition::NE => Condition::EQ, + + Condition::CS => Condition::CC, + Condition::CC => Condition::CS, + + Condition::MI => Condition::PL, + Condition::PL => Condition::MI, + + Condition::VS => Condition::VC, + Condition::VC => Condition::VS, + + Condition::HI => Condition::LS, + Condition::LS => Condition::HI, + + Condition::LT => Condition::GE, + Condition::GE => Condition::LT, + + Condition::GT => Condition::LE, + Condition::LE => Condition::GT, + + Condition::AL => Condition::AL, + + _ => panic!("Unknown condition") + + } + } +}
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