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| author | Meng Zhuo <mengzhuo@iscas.ac.cn> | 2026-01-06 11:24:49 +0800 |
|---|---|---|
| committer | Meng Zhuo <mengzhuo@iscas.ac.cn> | 2026-03-16 17:15:04 -0700 |
| commit | f3966c1ada0a0ddaea873f979ee9165649eb11b7 (patch) | |
| tree | aae58d3fa111762fe45c1d06122ffc45b898fdd2 /test/codegen | |
| parent | e7add86f163612d09c4c2ba2b80a4fc6eadf94bf (diff) | |
| download | go-f3966c1ada0a0ddaea873f979ee9165649eb11b7.tar.xz | |
cmd/compile: (riscv64) optimize float32(abs|sqrt64(float64(x)))
Absorb unnecessary conversion between float32 and float64
if both src and dst are 32 bit.
Updates #75463
Change-Id: Ia71941223b5cca3fea66b559da7b8f916e63feaf
Reviewed-on: https://go-review.googlesource.com/c/go/+/733621
Reviewed-by: Joel Sing <joel@sing.id.au>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Julian Zhu <jz531210@gmail.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Diffstat (limited to 'test/codegen')
| -rw-r--r-- | test/codegen/floats.go | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/test/codegen/floats.go b/test/codegen/floats.go index 3f27e54751..25483c9f15 100644 --- a/test/codegen/floats.go +++ b/test/codegen/floats.go @@ -294,6 +294,16 @@ func WideTruncNarrow(x float32) float32 { return float32(math.Trunc(float64(x))) } +func WideSqrtNarrow(x float32) float32 { + // riscv64:"FSQRTS" -"FCVTDS" -"FCVTSD" + return float32(math.Sqrt(float64(x))) +} + +func WideAbsNarrow(x float32) float32 { + // riscv64:"FABSS" -"FCVTDS" -"FCVTSD" + return float32(math.Abs(float64(x))) +} + func WideCopysignNarrow(x, y float32) float32 { // wasm:"F32Copysign" return float32(math.Copysign(float64(x), float64(y))) |