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| author | Joel Sing <joel@sing.id.au> | 2020-03-02 04:25:54 +1100 |
|---|---|---|
| committer | Joel Sing <joel@sing.id.au> | 2020-03-03 12:04:46 +0000 |
| commit | c9ece81cc8c1a81ebdebcf6dfc13ebf5c4cbdb61 (patch) | |
| tree | f613d6e93d85e55180e4cf129f13345beab48dfa /src/cmd/compile/internal/ssa/gen/RISCV64.rules | |
| parent | d28b8524a4d5d86d7b1e2df790abff6244de2a00 (diff) | |
| download | go-c9ece81cc8c1a81ebdebcf6dfc13ebf5c4cbdb61.tar.gz go-c9ece81cc8c1a81ebdebcf6dfc13ebf5c4cbdb61.zip | |
cmd/compile: absorb SNEZ into branch on riscv64
Change-Id: I55fd93843a7fb574a7dd66ebb87fdd96e944d555
Reviewed-on: https://go-review.googlesource.com/c/go/+/221682
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Diffstat (limited to 'src/cmd/compile/internal/ssa/gen/RISCV64.rules')
| -rw-r--r-- | src/cmd/compile/internal/ssa/gen/RISCV64.rules | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/ssa/gen/RISCV64.rules b/src/cmd/compile/internal/ssa/gen/RISCV64.rules index 9c1169dc67f..a19f8aa55bb 100644 --- a/src/cmd/compile/internal/ssa/gen/RISCV64.rules +++ b/src/cmd/compile/internal/ssa/gen/RISCV64.rules @@ -458,6 +458,9 @@ // Optimizations +// Absorb SNEZ into branch. +(BNE (SNEZ x) yes no) -> (BNE x yes no) + // Fold ADD+MOVDconst into ADDI where possible. (ADD (MOVDconst [off]) ptr) && is32Bit(off) -> (ADDI [off] ptr) |