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| author | Meng Zhuo <mengzhuo1203@gmail.com> | 2019-10-13 18:51:49 +0800 |
|---|---|---|
| committer | Cherry Zhang <cherryyz@google.com> | 2019-10-14 21:23:34 +0000 |
| commit | 50f1157760a3357f34520fd74c030dee0c44c8fd (patch) | |
| tree | 61598247265959e5a411d30044ae3e57a2cfa3fe /test/codegen/mathbits.go | |
| parent | 9f95a3097710fa4aa01910218454d23fa880f736 (diff) | |
| download | go-50f1157760a3357f34520fd74c030dee0c44c8fd.tar.xz | |
cmd/compile: add math/bits.Mul64 intrinsic on mips64x
Benchmark:
name old time/op new time/op delta
Mul 36.0ns ± 1% 2.8ns ± 0% -92.31% (p=0.000 n=10+10)
Mul32 4.37ns ± 0% 4.37ns ± 0% ~ (p=0.429 n=6+10)
Mul64 36.4ns ± 0% 2.8ns ± 0% -92.37% (p=0.000 n=10+9)
Change-Id: Ic4f4e5958adbf24999abcee721d0180b5413fca7
Reviewed-on: https://go-review.googlesource.com/c/go/+/200582
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Diffstat (limited to 'test/codegen/mathbits.go')
| -rw-r--r-- | test/codegen/mathbits.go | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/test/codegen/mathbits.go b/test/codegen/mathbits.go index 5adf7f5fcd..e405d6b1d2 100644 --- a/test/codegen/mathbits.go +++ b/test/codegen/mathbits.go @@ -558,6 +558,7 @@ func Mul(x, y uint) (hi, lo uint) { // ppc64:"MULHDU","MULLD" // ppc64le:"MULHDU","MULLD" // s390x:"MLGR" + // mips64: "MULVU" return bits.Mul(x, y) } @@ -567,6 +568,7 @@ func Mul64(x, y uint64) (hi, lo uint64) { // ppc64:"MULHDU","MULLD" // ppc64le:"MULHDU","MULLD" // s390x:"MLGR" + // mips64: "MULVU" return bits.Mul64(x, y) } |