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- changes tests to check that the real and imaginary part of the go complex
division result is equal to the result gcc produces for c99
- changes complex division code to satisfy new complex division test
- adds float functions isNan, isFinite, isInf, abs and copysign
in the runtime package
Fixes #14644.
name old time/op new time/op delta
Complex128DivNormal-4 21.8ns ± 6% 13.9ns ± 6% -36.37% (p=0.000 n=20+20)
Complex128DivNisNaN-4 14.1ns ± 1% 15.0ns ± 1% +5.86% (p=0.000 n=20+19)
Complex128DivDisNaN-4 12.5ns ± 1% 16.7ns ± 1% +33.79% (p=0.000 n=19+20)
Complex128DivNisInf-4 10.1ns ± 1% 13.0ns ± 1% +28.25% (p=0.000 n=20+19)
Complex128DivDisInf-4 11.0ns ± 1% 20.9ns ± 1% +90.69% (p=0.000 n=16+19)
ComplexAlgMap-4 86.7ns ± 1% 86.8ns ± 2% ~ (p=0.804 n=20+20)
Change-Id: I261f3b4a81f6cc858bc7ff48f6fd1b39c300abf0
Reviewed-on: https://go-review.googlesource.com/37441
Reviewed-by: Robert Griesemer <gri@golang.org>
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Follows suit with https://go-review.googlesource.com/#/c/20111.
Generated by running
$ grep -R 'Go Authors. All' * | cut -d":" -f1 | while read F;do perl -pi -e 's/Go
Authors. All/Go Authors. All/g' $F;done
The code in cmd/internal/unvendor wasn't changed.
Fixes #15213
Change-Id: I4f235cee0a62ec435f9e8540a1ec08ae03b1a75f
Reviewed-on: https://go-review.googlesource.com/21819
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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The various files are confusingly named and their operation
not easy to see. Add a comment to cmplxdivide.c, one of the few
C files that will endure in the repository, to explain how to build
and run the test.
Change-Id: I1fd5c564a14217e1b9815b09bc24cc43c54c096f
Reviewed-on: https://go-review.googlesource.com/2850
Reviewed-by: Russ Cox <rsc@golang.org>
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Introduce a new skip cmd.
R=golang-dev, bradfitz, iant, iant
CC=golang-dev
https://golang.org/cl/5868048
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also:
cmplx -> complex
float64(1.0) -> 1.0
float64(1) -> 1.0
R=gri, r, gri1, r2
CC=golang-dev
https://golang.org/cl/3991043
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R=iant
CC=golang-dev
https://golang.org/cl/1666048
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R=iant, ken2, r, r2, ken3
CC=golang-dev
https://golang.org/cl/1686044
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