Julian Zhu dfebef1c04 cmd/compile: fold negation into addition/subtraction on arm64 ...

Fold negation into addition/subtraction and avoid double negation.

platform: linux/arm64

file      before    after     Δ       %
addr2line 3628108   3628116   +8      +0.000%
asm       6208353   6207857   -496    -0.008%
buildid   3460682   3460418   -264    -0.008%
cgo       5572988   5572492   -496    -0.009%
compile   26042159  26041039  -1120   -0.004%
cover     6304328   6303472   -856    -0.014%
dist      4139330   4139098   -232    -0.006%
doc       9429305   9428065   -1240   -0.013%
fix       3997189   3996733   -456    -0.011%
link      8212128   8210280   -1848   -0.023%
nm        3620056   3619696   -360    -0.010%
objdump   5920289   5919233   -1056   -0.018%
pack      2892250   2891778   -472    -0.016%
pprof     17094569  17092745  -1824   -0.011%
test2json 3335825   3335529   -296    -0.009%
trace     15842080  15841456  -624    -0.004%
vet       9472194   9471106   -1088   -0.011%
go        19081541  19081509  -32     -0.000%
total     154253374 154240622 -12752  -0.008%

platform: darwin/arm64

file    before    after     Δ       %
compile 27152002  27135490  -16512  -0.061%
link    8372914   8356402   -16512  -0.197%
go      19154802  19154778  -24     -0.000%
total   157734180 157701132 -33048  -0.021%

Change-Id: I15a349bfbaf7333ec3e4a62ae4d06f3f371dfb1d
Reviewed-on: https://go-review.googlesource.com/c/go/+/673715
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

2025-05-20 11:08:28 -07:00

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