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go/misc/cgo/test
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Ilya Tocar 91102bf723 runtime: use bytes.IndexByte in findnull 
bytes.IndexByte is heavily optimized. Use it in findnull.
This is second attempt, similar to CL97523.
In this version we never call IndexByte on region of memory,
that crosses page boundary. A bit slower than CL97523,
but still fast:

name        old time/op  new time/op  delta
GoString-6   164ns ± 2%   118ns ± 0%  -28.00%  (p=0.000 n=10+6)

findnull is also used in gostringnocopy,
which is used in many hot spots in the runtime.

Fixes #23830

Change-Id: Id843dd4f65a34309d92bdd8df229e484d26b0cb2
Reviewed-on: https://go-review.googlesource.com/98015
Run-TryBot: Ilya Tocar <ilya.tocar@intel.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-03-09 19:37:39 +00:00
..
gcc68255
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue8756
cmd/link, cmd/go: delay linking of mingwex and mingw32 until very end
2016-08-31 06:30:26 +00:00
issue8828
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue9026
misc/cgo/test: fix freebsd test failure by moving test to its own package.
2014-11-03 13:41:03 -05:00
issue9400
runtime: use NOFRAME on mips and mips64
2018-02-12 21:41:32 +00:00
issue9510a
cmd/link, cmd/go, cmd/dist: use copy of libgcc.a for internal linking
2015-11-14 18:56:17 +00:00
issue9510b
cmd/link, cmd/go, cmd/dist: use copy of libgcc.a for internal linking
2015-11-14 18:56:17 +00:00
issue20266
go/build: make -I/-L options in cgo flags absolute
2017-06-13 18:36:04 +00:00
align.go
test: Add the usual Copyright notice.
2012-01-24 14:48:15 -05:00
api.go
cmd/cgo: only record typedef name for pointer to struct
2016-11-01 23:06:24 +00:00
backdoor.go
misc/cgo/test: get rid of the backdoor package
2014-12-24 00:18:21 +00:00
basic.go
runtime: use bytes.IndexByte in findnull
2018-03-09 19:37:39 +00:00
buildid_linux.go
misc/cgo/test: avoid endless loop when we can't parse notes
2018-01-11 19:55:49 +00:00
callback_c_gc.c
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
callback_c_gccgo.c
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
callback_c.c
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
callback.go
cmd/cgo: always use a function literal for pointer checking
2016-10-19 21:20:50 +00:00
cflags.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
cgo_linux_test.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
cgo_stubs_android_test.go
misc/cgo/test,cmd/dist: enable (most) Cgo tests on Android
2016-06-01 22:06:51 +00:00
cgo_test.go
runtime: use bytes.IndexByte in findnull
2018-03-09 19:37:39 +00:00
cgo_thread_lock.go
misc/cgo/test: add test that gccgo fails
2016-10-13 00:03:57 +00:00
cgo_unix_test.go
runtime/cgo: retry pthread_create on EAGAIN
2016-12-05 18:46:18 +00:00
checkconst.go
cmd/cgo: preserve original call arguments when pointer checking
2016-10-21 20:46:20 +00:00
complex.go
cmd/compile, cmd/cgo: align complex{64,128} like GCC
2016-10-05 17:44:27 +00:00
cthread_unix.c
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
cthread_windows.c
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
cthread.go
misc/cgo/test,cmd/dist: enable (more) Cgo tests on iOS
2016-06-02 10:09:12 +00:00
duplicate_symbol.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
env.go
misc/cgo/test: fix go vet warnings
2015-10-13 17:53:20 +00:00
exports.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
fpvar.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
gcc68255.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
helpers.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue1222.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue1328.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue1560.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue1635.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue2462.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue3250.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue3250w.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue3261.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue3729.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue3729w.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue3741.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue3775.go
misc/cgo/test,cmd/dist: enable (most) Cgo tests on Android
2016-06-01 22:06:51 +00:00
issue3945.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue4029.c
misc/cgo/test: get uintptr, not pointer, from dlopen
2018-02-02 18:42:10 +00:00
issue4029.go
misc/cgo/test: get uintptr, not pointer, from dlopen
2018-02-02 18:42:10 +00:00
issue4029w.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue4054a.go
cgo: process DWARF info even when debug data is used for value
2012-09-20 13:20:33 +10:00
issue4054b.go
cgo: process DWARF info even when debug data is used for value
2012-09-20 13:20:33 +10:00
issue4273.c
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue4273b.c
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue4339.c
misc/cgo/test: test of issue 4339
2013-09-11 09:56:38 -04:00
issue4339.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue4339.h
misc/cgo/test: test of issue 4339
2013-09-11 09:56:38 -04:00
issue4417.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue4857.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue5227.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue5242.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue5337.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue5337w.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue5548_c.c
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue5548.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue5603.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue5740.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue5740a.c
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue5740b.c
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue5986.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue6128.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue6390.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue6472.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue6506.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue6612.go
cmd/cgo: support floating point #define macros
2017-04-07 21:09:44 +00:00
issue6833_c.c
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue6833.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue6907.go
cmd/cgo: permit passing string values directly between Go and C
2017-11-15 03:36:54 +00:00
issue6907export_c.c
cmd/cgo: permit passing string values directly between Go and C
2017-11-15 03:36:54 +00:00
issue6907export.go
cmd/cgo: permit passing string values directly between Go and C
2017-11-15 03:36:54 +00:00
issue6997_linux.c
misc/cgo/test,cmd/dist: enable (most) Cgo tests on Android
2016-06-01 22:06:51 +00:00
issue6997_linux.go
misc/cgo/test,cmd/dist: enable (most) Cgo tests on Android
2016-06-01 22:06:51 +00:00
issue7234_test.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue7560.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue7665.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue7786.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue7978.go
misc/cgo/test: set the traceback level instead of failing the test
2017-09-13 02:53:11 +00:00
issue8092.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue8148.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue8331.h
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue8331a.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue8331b.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue8428.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue8441.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue8517_windows.c
misc/cgo/test: add Test8517
2014-10-09 16:10:51 +11:00
issue8517_windows.go
misc/cgo/test: add Test8517
2014-10-09 16:10:51 +11:00
issue8517.go
misc/cgo/test: add Test8517
2014-10-09 16:10:51 +11:00
issue8694.go
misc/cgo/test,cmd/dist: enable (most) Cgo tests on Android
2016-06-01 22:06:51 +00:00
issue8756.go
cmd/link, cmd/go: delay linking of mingwex and mingw32 until very end
2016-08-31 06:30:26 +00:00
issue8811.c
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue8811.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue8828.go
cmd/go: add '_go_' suffix to go files compiled by gccgo to avoid naming conflicts
2014-10-15 13:13:37 -07:00
issue8945.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue9026.go
misc/cgo/test: fix freebsd test failure by moving test to its own package.
2014-11-03 13:41:03 -05:00
issue9400_linux.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue9510.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue9557.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue10303.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue11925.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue12030.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue13402.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue13930.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue14838.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
issue17065.go
misc/cgo/test: add skipped test for issue 17065
2016-09-11 20:43:11 +00:00
issue17537.go
cmd/cgo: don't strip qualifiers from C void* pointer
2016-12-14 00:59:38 +00:00
issue18126.go
cmd/cgo: fix cgo checking when fetching errno value
2016-12-01 02:13:50 +00:00
issue18146.go
misc/cgo/test: pass current environment to syscall.Exec
2017-01-20 21:12:54 +00:00
issue18720.go
cmd/cgo: support niladic function-like macros
2017-08-30 18:28:58 +00:00
issue20129.go
cmd/cgo: unwrap typedef-chains before type checking
2017-06-27 23:02:34 +00:00
issue20266.go
go/build: make -I/-L options in cgo flags absolute
2017-06-13 18:36:04 +00:00
issue20369.go
cmd/cgo: support large unsigned macros
2017-05-17 14:42:29 +00:00
issue20910.c
cmd/cgo: unify cgo output for gc and gccgo
2017-08-16 21:57:56 +00:00
issue20910.go
cmd/cgo: unify cgo output for gc and gccgo
2017-08-16 21:57:56 +00:00
issue21668.go
cmd/cgo: avoid using common names for sniffing
2017-08-29 00:42:34 +00:00
issue21708.go
cmd/cgo: support large unsigned macro again
2017-09-01 00:42:21 +00:00
issue21809.go
go/printer: fix formatting of three-index slice expression
2017-10-03 16:16:30 +00:00
issue21897.go
cmd/cgo: special case C ptr types to use uintptr
2017-11-17 22:11:03 +00:00
issue21897b.go
cmd/cgo: special case C ptr types to use uintptr
2017-11-17 22:11:03 +00:00
issue22958.go
cmd/cgo: for C bitfields use only valid Go integer types
2017-12-01 23:50:23 +00:00
issue24206_generic.go
runtime: use bytes.IndexByte in findnull
2018-03-09 19:37:39 +00:00
issue24206.go
runtime: use bytes.IndexByte in findnull
2018-03-09 19:37:39 +00:00
setgid_linux.go
all: make copyright headers consistent with one space after period
2016-05-02 13:43:18 +00:00
sigaltstack.go
misc/cgo/test: fix test when using GCC 7
2017-01-20 21:12:19 +00:00
sigprocmask.c
runtime: don't always unblock all signals on dragonfly, freebsd and openbsd
2016-04-15 21:20:45 +00:00
sigprocmask.go
runtime: don't always unblock all signals on dragonfly, freebsd and openbsd
2016-04-15 21:20:45 +00:00
test22906.go
cmd/cgo: make JNI's jobject type map to uintptr in Go
2017-12-08 16:13:14 +00:00