Neven Sajko 964fe4b80f math/big: simplify shlVU_g and shrVU_g ... Rewrote a few lines to be more idiomatic/less assembly-ish. Benchmarked with `go test -bench Float -tags math_big_pure_go`: name old time/op new time/op delta FloatString/100-8 751ns ± 0% 746ns ± 1% -0.71% (p=0.000 n=10+10) FloatString/1000-8 22.9µs ± 0% 22.9µs ± 0% ~ (p=0.271 n=10+10) FloatString/10000-8 1.89ms ± 0% 1.89ms ± 0% ~ (p=0.481 n=10+10) FloatString/100000-8 184ms ± 0% 184ms ± 0% ~ (p=0.094 n=9+9) FloatAdd/10-8 56.4ns ± 1% 56.5ns ± 0% ~ (p=0.170 n=9+9) FloatAdd/100-8 59.7ns ± 0% 59.3ns ± 0% -0.70% (p=0.000 n=8+9) FloatAdd/1000-8 101ns ± 0% 99ns ± 0% -1.89% (p=0.000 n=8+8) FloatAdd/10000-8 553ns ± 0% 536ns ± 0% -3.00% (p=0.000 n=9+10) FloatAdd/100000-8 4.94µs ± 0% 4.74µs ± 0% -3.94% (p=0.000 n=9+10) FloatSub/10-8 50.3ns ± 0% 50.5ns ± 0% +0.52% (p=0.000 n=8+8) FloatSub/100-8 52.0ns ± 0% 52.2ns ± 1% +0.46% (p=0.012 n=8+10) FloatSub/1000-8 77.9ns ± 0% 77.3ns ± 0% -0.80% (p=0.000 n=7+8) FloatSub/10000-8 371ns ± 0% 362ns ± 0% -2.67% (p=0.000 n=10+10) FloatSub/100000-8 3.20µs ± 0% 3.10µs ± 0% -3.16% (p=0.000 n=10+10) ParseFloatSmallExp-8 7.84µs ± 0% 7.82µs ± 0% -0.17% (p=0.037 n=9+9) ParseFloatLargeExp-8 29.3µs ± 1% 29.5µs ± 0% ~ (p=0.059 n=9+8) FloatSqrt/64-8 516ns ± 0% 519ns ± 0% +0.54% (p=0.000 n=9+9) FloatSqrt/128-8 1.07µs ± 0% 1.07µs ± 0% ~ (p=0.109 n=8+9) FloatSqrt/256-8 1.23µs ± 0% 1.23µs ± 0% +0.50% (p=0.000 n=9+9) FloatSqrt/1000-8 3.43µs ± 0% 3.44µs ± 0% +0.53% (p=0.000 n=9+8) FloatSqrt/10000-8 40.9µs ± 0% 40.7µs ± 0% -0.39% (p=0.000 n=9+8) FloatSqrt/100000-8 1.07ms ± 0% 1.07ms ± 0% -0.10% (p=0.017 n=10+9) FloatSqrt/1000000-8 89.3ms ± 0% 89.2ms ± 0% -0.07% (p=0.015 n=9+8) Change-Id: Ibf07c6142719d11bc7f329246957d87a9f3ba3d2 GitHub-Last-Rev: 870a041ab7 GitHub-Pull-Request: golang/go#31220 Reviewed-on: https://go-review.googlesource.com/c/go/+/170449 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>		2019-04-04 00:26:24 +00:00
..
archive	archive/tar, syscall: add statUnix for aix/ppc64	2019-02-27 23:40:20 +00:00
bufio
builtin	builtin: make len's godoc less ambiguous	2019-03-13 20:57:32 +00:00
bytes	bytes: merge explodetests into splittests	2019-04-03 14:46:01 +00:00
cmd	cmd/compile: better recovery after := (rather than =) in declarations	2019-04-03 23:01:13 +00:00
compress	cmd/go: further reduce init work	2019-03-31 10:49:55 +00:00
container
context	context: don't depend on fmt	2019-03-27 02:37:56 +00:00
crypto	crypto/tls: simplify intermediate certificate handling	2019-04-02 20:29:58 +00:00
database/sql	database/sql: add example for DB.Prepare and Tx.Prepare	2019-03-25 15:51:17 +00:00
debug	debug/dwarf: more graceful handling of unsupported types	2019-03-15 17:33:46 +00:00
encoding	encoding/json: speed up tokenization of literals	2019-04-03 17:01:44 +00:00
errors	fmt: make type of fmt.Errorf the same as that of errors.New	2019-03-14 09:45:22 +00:00
expvar
flag	cmd/go: further reduce init work	2019-03-31 10:49:55 +00:00
fmt	fmt: fix spelling mistake in example	2019-03-25 21:03:10 +00:00
go	go/ast: fix SortImports to handle block comments	2019-03-28 23:49:52 +00:00
hash
html
image	image/jpeg: reduce bound checks from idct and fdct	2019-04-02 23:18:37 +00:00
index/suffixarray
internal	syscall: avoid _getdirentries64 on darwin	2019-04-03 21:27:05 +00:00
io
log	log: expose Writer() method of the standard logger	2019-03-25 01:18:56 +00:00
math	math/big: simplify shlVU_g and shrVU_g	2019-04-04 00:26:24 +00:00
mime	mime: add .jpeg for builtin	2019-04-03 18:17:48 +00:00
net	cmd/go: further reduce init work	2019-03-31 10:49:55 +00:00
os	syscall: avoid _getdirentries64 on darwin	2019-04-03 21:27:05 +00:00
path	path/filepath: add examples for Base, Dir and IsAbs	2019-03-25 02:57:06 +00:00
plugin	cmd/compile: reorganize init functions	2019-03-18 20:10:55 +00:00
reflect	reflect: document that method sets are lexicographically sorted	2019-04-03 19:00:48 +00:00
regexp
runtime	syscall: avoid _getdirentries64 on darwin	2019-04-03 21:27:05 +00:00
sort	sort, internal/reflectlite: flesh out reflectlite enough for use by sort	2019-03-27 04:58:23 +00:00
strconv	strconv: simplify (*extFloat).Multiply using math/bits.Mul64	2019-03-04 22:25:21 +00:00
strings	strings: document that NewReplacer can panic	2019-04-03 20:15:58 +00:00
sync
syscall	syscall: avoid _getdirentries64 on darwin	2019-04-03 21:27:05 +00:00
testdata
testing	testing: correct two spelling/grammar issues	2019-03-25 22:26:21 +00:00
text	text/template: allow using -}} with many spaces	2019-03-24 09:06:14 +00:00
time	time: optimize Sub	2019-03-19 04:10:33 +00:00
unicode
unsafe
vendor	all: move internal/x to vendor/golang.org/x and revendor using 'go mod vendor'	2019-03-11 20:28:54 +00:00
all.bash
all.bat
all.rc
bootstrap.bash
buildall.bash
clean.bash
clean.bat
clean.rc
cmp.bash
go.mod
go.sum
iostest.bash
make.bash
make.bat
Make.dist
make.rc
naclmake.bash
nacltest.bash
race.bash
race.bat
run.bash
run.bat
run.rc