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| author | Wayne Zuo <wdvxdr@golangcn.org> | 2023-03-02 13:33:21 +0800 |
|---|---|---|
| committer | Wayne Zuo <wdvxdr@golangcn.org> | 2023-03-03 01:33:00 +0000 |
| commit | 14015be5bb4ef69c710ac5a4fad5a5d2a548e3fb (patch) | |
| tree | 2b84a8cfc81eb2f20485dbad2d2c2337c76b661d /src/plugin/plugin_dlopen.go | |
| parent | 0487ba08a681c9e4414195c3a0f0ed16e93ada4f (diff) | |
| download | go-14015be5bb4ef69c710ac5a4fad5a5d2a548e3fb.tar.xz | |
cmd/compile: optimize multiplication on loong64
Previously, multiplication on loong64 architecture was performed using
MULV and MULHVU instructions to calculate the low 64-bit and high
64-bit of a multiplication respectively. However, in most cases, only
the low 64-bits are needed. This commit enalbes only computating the low
64-bit result with the MULV instruction.
Reduce the binary size slightly.
file before after Δ %
addr2line 2833777 2833849 +72 +0.003%
asm 5267499 5266963 -536 -0.010%
buildid 2579706 2579402 -304 -0.012%
cgo 4798260 4797444 -816 -0.017%
compile 25247419 25175030 -72389 -0.287%
cover 4973091 4972027 -1064 -0.021%
dist 3631013 3565653 -65360 -1.800%
doc 4076036 4074004 -2032 -0.050%
fix 3496378 3496066 -312 -0.009%
link 6984102 6983214 -888 -0.013%
nm 2743820 2743516 -304 -0.011%
objdump 4277171 4277035 -136 -0.003%
pack 2379248 2378872 -376 -0.016%
pprof 14419090 14419874 +784 +0.005%
test2json 2684386 2684018 -368 -0.014%
trace 13640018 13631034 -8984 -0.066%
vet 7748918 7752630 +3712 +0.048%
go 15643850 15638098 -5752 -0.037%
total 127423782 127268729 -155053 -0.122%
Change-Id: Ifce4a9a3ed1d03c170681e39cb6f3541db9882dc
Reviewed-on: https://go-review.googlesource.com/c/go/+/472775
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org>
Reviewed-by: David Chase <drchase@google.com>
Diffstat (limited to 'src/plugin/plugin_dlopen.go')
0 files changed, 0 insertions, 0 deletions