delta/go-git.git/src/runtime/complex.go, branch dev.go2go github.com: golang/go runtime: make complex division c99 compatible 2017-03-15T22:45:17+00:00 Martin Möhrmann moehrmann@google.com 2017-02-25T22:50:56+00:00 16200c73331a679b43efc4699b5806c64a556f09 - 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> 
- 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>
[dev.cc] runtime: convert basic library routines from C to Go 2014-11-11T22:07:06+00:00 Russ Cox rsc@golang.org 2014-11-11T22:07:06+00:00 0c3c2c17243545e9bc7c5d158c5230fe299e8b73 float.c held bit patterns for special float64 values, hiding from the real uses. Rewrite Go code not to refer to those values directly. Convert library routines in runtime.c and string.c. LGTM=r R=r, dave CC=austin, dvyukov, golang-codereviews, iant, khr https://golang.org/cl/170330043 
float.c held bit patterns for special float64 values,
hiding from the real uses. Rewrite Go code not to
refer to those values directly.

Convert library routines in runtime.c and string.c.

LGTM=r
R=r, dave
CC=austin, dvyukov, golang-codereviews, iant, khr
https://golang.org/cl/170330043
build: move package sources from src/pkg to src 2014-09-08T04:08:51+00:00 Russ Cox rsc@golang.org 2014-09-08T04:08:51+00:00 c007ce824d9a4fccb148f9204e04c23ed2984b71 Preparation was in CL 134570043. This CL contains only the effect of 'hg mv src/pkg/* src'. For more about the move, see golang.org/s/go14nopkg. 
Preparation was in CL 134570043.
This CL contains only the effect of 'hg mv src/pkg/* src'.
For more about the move, see golang.org/s/go14nopkg.