diff options
Diffstat (limited to 'src/cmd/compile/internal/ssa/gen/RISCV64.rules')
| -rw-r--r-- | src/cmd/compile/internal/ssa/gen/RISCV64.rules | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/cmd/compile/internal/ssa/gen/RISCV64.rules b/src/cmd/compile/internal/ssa/gen/RISCV64.rules index 96b24a6380..7aea622c5e 100644 --- a/src/cmd/compile/internal/ssa/gen/RISCV64.rules +++ b/src/cmd/compile/internal/ssa/gen/RISCV64.rules @@ -583,7 +583,7 @@ (AtomicOr32 ...) => (LoweredAtomicOr32 ...) // Conditional branches -(If cond yes no) => (BNEZ cond yes no) +(If cond yes no) => (BNEZ (MOVBUreg <typ.UInt64> cond) yes no) // Optimizations @@ -621,6 +621,10 @@ (MOVWstore [off] {sym} ptr (MOVDconst [0]) mem) => (MOVWstorezero [off] {sym} ptr mem) (MOVDstore [off] {sym} ptr (MOVDconst [0]) mem) => (MOVDstorezero [off] {sym} ptr mem) +// Boolean ops are already extended. +(MOVBUreg x:((SEQZ|SNEZ) _)) => x +(MOVBUreg x:((SLT|SLTU) _ _)) => x + // Avoid sign/zero extension for consts. (MOVBreg (MOVDconst [c])) => (MOVDconst [int64(int8(c))]) (MOVHreg (MOVDconst [c])) => (MOVDconst [int64(int16(c))]) |