[arm] Fix recognition of VNEG.

[arm] Fix recognition of VNEG.

TEST=mjsunit,unittests
R=svenpanne@chromium.org

Committed: https://chromium.googlesource.com/v8/v8/+/2aed882fe74dbf9210159babe30fedccd900e7cf

Committed: https://chromium.googlesource.com/v8/v8/+/560b0c4534741cab40bcc0369997aab7091b56fd

[Benedikt Meurer, 2014-11-26 09:42:37]

bmeurer@chromium.org changed reviewers:
+ svenpanne@chromium.org

[Benedikt Meurer, 2014-11-26 09:42:38]

PTAL

[Sven Panne, 2014-11-26 09:48:33]

LGTM with a nit

https://codereview.chromium.org/762493006/diff/20001/src/compiler/node-matche...
File src/compiler/node-matchers.h (right):

https://codereview.chromium.org/762493006/diff/20001/src/compiler/node-matche...
src/compiler/node-matchers.h:108: return this->Is(0.0) &&
std::signbit(this->Value());
std::signbit is a C++11 library feature, plain signbit is not.

[Benedikt Meurer, 2014-11-26 10:46:43]

Committed patchset #3 (id:40001) manually as
2aed882fe74dbf9210159babe30fedccd900e7cf (presubmit successful).

[Benedikt Meurer, 2014-11-26 10:47:19]

https://codereview.chromium.org/762493006/diff/20001/src/compiler/node-matche...
File src/compiler/node-matchers.h (right):

https://codereview.chromium.org/762493006/diff/20001/src/compiler/node-matche...
src/compiler/node-matchers.h:108: return this->Is(0.0) &&
std::signbit(this->Value());
On 2014/11/26 09:48:33, Sven Panne wrote:
> std::signbit is a C++11 library feature, plain signbit is not.

Done.

[Michael Achenbach, 2014-11-26 11:06:17]

A revert of this CL (patchset #3 id:40001) has been created in
https://codereview.chromium.org/751653004/ by machenbach@chromium.org.

The reason for reverting is: Breaks arm compilation..

[Benedikt Meurer, 2014-11-26 11:19:03]

Committed patchset #4 (id:60001) manually as
560b0c4534741cab40bcc0369997aab7091b56fd (tree was closed).