77f3e189d2bd4eb015235d200ca75803e45c87ef - go

commit: 77f3e189d2bd4eb015235d200ca75803e45c87ef

[log]
author: Rémy Oudompheng <oudomphe@phare.normalesup.org>

Sun Aug 05 21:35:41 2012 +0200
committer: Rémy Oudompheng <oudomphe@phare.normalesup.org>

Sun Aug 05 21:35:41 2012 +0200
tree: 76a992e3dbc8ae3170f5e28917bbefd7a6c0178c
parent: ab058b35402aded8579e3e9653c0d78c5c4e9e5e [diff]

runtime: faster string equality.

benchmark                                old ns/op    new ns/op    delta
BenchmarkCompareStringEqual                     51           35  -30.20%
BenchmarkCompareStringIdentical                 51            7  -85.71%
BenchmarkCompareStringSameLength                25           18  -28.29%
BenchmarkCompareStringDifferentLength            2            2   +1.46%

R=golang-dev, rsc
CC=golang-dev, remy
https://golang.org/cl/6450092

src/cmd/gc/builtin.c[diff]
src/cmd/gc/runtime.go[diff]
src/cmd/gc/walk.c[diff]
src/pkg/runtime/alg.c[diff]
src/pkg/runtime/string.goc[diff]
src/pkg/runtime/string_test.go[Added - diff]

6 files changed

tree: 76a992e3dbc8ae3170f5e28917bbefd7a6c0178c