Josh Bleecher Snyder 85b2940f5c cmd/compile: search for remaining WB ops from end to beginning ... The writebarrier pass processes WB ops from beginning to end, replacing them by other values. But it also checks whether there are more ops to process by walking from beginning to end. This is quadratic, so walk from end to beginning instead. This speeds up compiling the code in issue 13554: name old time/op new time/op delta Pkg 11.9s ± 2% 8.3s ± 3% -29.88% (p=0.000 n=18+17) Updates #13554 Passes toolstash-check. Change-Id: I5f8a872ddc4b783540220d89ea2ee188a6d2b2ff Reviewed-on: https://go-review.googlesource.com/43571 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>		2017-05-18 20:14:12 +00:00
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addr2line	cmd/go: build test binaries with -s in addition to -w	2017-03-29 17:18:16 +00:00
api	api: promote next.txt to go1.8.txt, update go tool	2016-12-01 02:54:21 +00:00
asm	cmd/internal/obj/arm: remove illegal form of the SWI instruction	2017-05-18 13:38:13 +00:00
cgo	cmd/cgo: support large unsigned macros	2017-05-17 14:42:29 +00:00
compile	cmd/compile: search for remaining WB ops from end to beginning	2017-05-18 20:14:12 +00:00
cover	cmd/cover: fix spelling mistake	2016-12-20 04:45:25 +00:00
dist	internal/cpu: new package to detect cpu features	2017-05-10 17:02:21 +00:00
doc	cmd/doc: implement "go doc struct.field"	2017-03-22 05:37:50 +00:00
fix	cmd/fix,cmd/gofmt: flush to disk before diffing	2017-03-30 18:19:57 +00:00
go	cmd/go: don't fail on missing runtime/internal/sys/zversion.go	2017-05-17 01:30:51 +00:00
gofmt	cmd/fix,cmd/gofmt: flush to disk before diffing	2017-03-30 18:19:57 +00:00
internal	cmd/internal/obj/arm: remove illegal form of the SWI instruction	2017-05-18 13:38:13 +00:00
link	cmd/link: make sure that runtime.epclntab lives in .text section	2017-05-18 05:32:41 +00:00
nm	all: fix some printf format strings	2017-02-14 02:09:30 +00:00
objdump	cmd/internal/objabi: fix the bug of shrinking SymType down to a uint8	2017-05-16 12:26:10 +00:00
pack	all: use testing.GoToolPath instead of "go"	2016-08-30 22:49:11 +00:00
pprof	cmd/pprof: update README to explain relationship with github.com/google/pprof	2017-04-10 19:51:01 +00:00
trace	cmd/trace: document that trace viewer is only tested on chromium	2017-04-20 16:44:55 +00:00
vendor	cmd/vendor/arch/x86: pull new version from x repo	2017-04-20 22:39:48 +00:00
vet	internal/cpu: new package to detect cpu features	2017-05-10 17:02:21 +00:00