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| author | eric fang <eric.fang@arm.com> | 2022-08-04 09:43:44 +0000 |
|---|---|---|
| committer | Eric Fang <eric.fang@arm.com> | 2022-08-23 03:09:07 +0000 |
| commit | 0a52d80666ddaa557cec17ad9166e2514b0bb6d4 (patch) | |
| tree | 957b5839f9d3e7c3b0e68c4bab1d659a33dc1bb5 /test/codegen | |
| parent | 0f42e35feeef606977859039b876773ae5fb4de9 (diff) | |
| download | go-0a52d80666ddaa557cec17ad9166e2514b0bb6d4.tar.xz | |
cmd/compile/internal/ssa: optimize memory moving on arm64
This CL optimizes memory moving with LDP and STP on arm64.
Benchmarks:
name old time/op new time/op delta
ClearFat7-160 1.08ns ± 0% 0.95ns ± 0% -11.41% (p=0.008 n=5+5)
ClearFat8-160 0.84ns ± 0% 0.84ns ± 0% -0.95% (p=0.008 n=5+5)
ClearFat11-160 1.08ns ± 0% 0.95ns ± 0% -11.46% (p=0.008 n=5+5)
ClearFat12-160 0.95ns ± 0% 0.95ns ± 0% ~ (p=0.063 n=4+5)
ClearFat13-160 1.08ns ± 0% 0.95ns ± 0% -11.45% (p=0.008 n=5+5)
ClearFat14-160 1.08ns ± 0% 0.95ns ± 0% -11.47% (p=0.008 n=5+5)
ClearFat15-160 1.24ns ± 0% 0.95ns ± 0% -22.98% (p=0.029 n=4+4)
ClearFat16-160 0.84ns ± 0% 0.83ns ± 0% -0.11% (p=0.008 n=5+5)
ClearFat24-160 2.15ns ± 0% 2.15ns ± 0% ~ (all equal)
ClearFat32-160 2.86ns ± 0% 2.86ns ± 0% ~ (p=0.333 n=5+4)
ClearFat40-160 2.15ns ± 0% 2.15ns ± 0% ~ (all equal)
ClearFat48-160 3.32ns ± 1% 3.31ns ± 1% ~ (p=0.690 n=5+5)
ClearFat56-160 2.15ns ± 0% 2.15ns ± 0% ~ (all equal)
ClearFat64-160 3.25ns ± 1% 3.26ns ± 1% ~ (p=0.841 n=5+5)
ClearFat72-160 2.22ns ± 0% 2.22ns ± 0% ~ (p=0.444 n=5+5)
ClearFat128-160 4.03ns ± 0% 4.04ns ± 0% +0.32% (p=0.008 n=5+5)
ClearFat256-160 6.44ns ± 0% 6.44ns ± 0% +0.08% (p=0.016 n=4+5)
ClearFat512-160 12.2ns ± 0% 12.2ns ± 0% +0.13% (p=0.008 n=5+5)
ClearFat1024-160 24.3ns ± 0% 24.3ns ± 0% ~ (p=0.167 n=5+5)
ClearFat1032-160 24.5ns ± 0% 24.5ns ± 0% ~ (p=0.238 n=4+5)
ClearFat1040-160 29.2ns ± 0% 29.3ns ± 0% +0.34% (p=0.008 n=5+5)
CopyFat7-160 1.43ns ± 0% 1.07ns ± 0% -24.97% (p=0.008 n=5+5)
CopyFat8-160 0.89ns ± 0% 0.89ns ± 0% ~ (p=0.238 n=5+5)
CopyFat11-160 1.43ns ± 0% 1.07ns ± 0% -24.97% (p=0.008 n=5+5)
CopyFat12-160 1.07ns ± 0% 1.07ns ± 0% ~ (p=0.238 n=5+4)
CopyFat13-160 1.43ns ± 0% 1.07ns ± 0% ~ (p=0.079 n=4+5)
CopyFat14-160 1.43ns ± 0% 1.07ns ± 0% -24.95% (p=0.008 n=5+5)
CopyFat15-160 1.79ns ± 0% 1.07ns ± 0% ~ (p=0.079 n=4+5)
CopyFat16-160 1.07ns ± 0% 1.07ns ± 0% ~ (p=0.444 n=5+5)
CopyFat24-160 1.84ns ± 2% 1.67ns ± 0% -9.28% (p=0.008 n=5+5)
CopyFat32-160 3.22ns ± 0% 2.92ns ± 0% -9.40% (p=0.008 n=5+5)
CopyFat64-160 3.64ns ± 0% 3.57ns ± 0% -1.96% (p=0.008 n=5+5)
CopyFat72-160 3.56ns ± 0% 3.11ns ± 0% -12.89% (p=0.008 n=5+5)
CopyFat128-160 5.06ns ± 0% 5.06ns ± 0% +0.04% (p=0.048 n=5+5)
CopyFat256-160 9.13ns ± 0% 9.13ns ± 0% ~ (p=0.659 n=5+5)
CopyFat512-160 17.4ns ± 0% 17.4ns ± 0% ~ (p=0.167 n=5+5)
CopyFat520-160 17.2ns ± 0% 17.3ns ± 0% +0.37% (p=0.008 n=5+5)
CopyFat1024-160 34.1ns ± 0% 34.0ns ± 0% ~ (p=0.127 n=5+5)
CopyFat1032-160 80.9ns ± 0% 34.2ns ± 0% -57.74% (p=0.008 n=5+5)
CopyFat1040-160 94.4ns ± 0% 41.7ns ± 0% -55.78% (p=0.016 n=5+4)
Change-Id: I14186f9f82b0ecf8b6c02191dc5da566b9a21e6c
Reviewed-on: https://go-review.googlesource.com/c/go/+/421654
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Eric Fang <eric.fang@arm.com>
Reviewed-by: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Diffstat (limited to 'test/codegen')
| -rw-r--r-- | test/codegen/strings.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/test/codegen/strings.go b/test/codegen/strings.go index 08425a418a..a2c2fc0a62 100644 --- a/test/codegen/strings.go +++ b/test/codegen/strings.go @@ -45,7 +45,7 @@ func ConstantLoad() { // 7306073769690871863 = 0x6564636261393837 // amd64:`MOVQ\t\$3978425819141910832`,`MOVQ\t\$7306073769690871863` // 386:`MOVL\t\$858927408, \(`,`DUFFCOPY` - // arm64:`MOVD\t\$3978425819141910832`,`MOVD\t\$1650538808`,`MOVD\t\$25699`,`MOVD\t\$101` + // arm64:`MOVD\t\$3978425819141910832`,`MOVD\t\$7306073769690871863`,`MOVD\t\$15` // wasm:`I64Const\t\$3978425819141910832`,`I64Store\t\$0`,`I64Const\t\$7306073769690871863`,`I64Store\t\$7` bsink = []byte("0123456789abcde") |