diff options
| author | Xiaolin Zhao <zhaoxiaolin@loongson.cn> | 2026-01-12 16:21:54 +0800 |
|---|---|---|
| committer | abner chenc <chenguoqi@loongson.cn> | 2026-01-28 06:19:53 -0800 |
| commit | f65fe3216ef67b4318f8da475ec59418dfc4fb5d (patch) | |
| tree | da15b08b45cfbc4998e9959cd228fae6e0b221c0 /src/cmd/compile/internal/ssa/_gen/LOONG64.rules | |
| parent | 514790c2b983a91ca48742aea9bc519d7caea6c4 (diff) | |
| download | go-f65fe3216ef67b4318f8da475ec59418dfc4fb5d.tar.xz | |
cmd/compile: (loong64) optimize float32(abs|sqrt64(float64(x)))
Ref: #733621
Updates #75463
Change-Id: Idd8821d1713754097a2fe83a050c25d9ec5b17eb
Reviewed-on: https://go-review.googlesource.com/c/go/+/735540
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Diffstat (limited to 'src/cmd/compile/internal/ssa/_gen/LOONG64.rules')
| -rw-r--r-- | src/cmd/compile/internal/ssa/_gen/LOONG64.rules | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/ssa/_gen/LOONG64.rules b/src/cmd/compile/internal/ssa/_gen/LOONG64.rules index a40603e93d..9793e6cf34 100644 --- a/src/cmd/compile/internal/ssa/_gen/LOONG64.rules +++ b/src/cmd/compile/internal/ssa/_gen/LOONG64.rules @@ -773,6 +773,9 @@ (SUBF (NEGF (MULF x y)) z) && z.Block.Func.useFMA(v) => (FNMADDF x y z) (SUBD (NEGD (MULD x y)) z) && z.Block.Func.useFMA(v) => (FNMADDD x y z) +// Absorb conversion between 32 bit and 64 bit if both src and dst are 32 bit. +(MOVDF ((ABS|SQRT)D (MOVFD x))) => ((ABS|SQRT)F x) + // generic simplifications (ADDV x (NEGV y)) => (SUBV x y) (SUBV x (NEGV y)) => (ADDV x y) |