[turbofan] ARM64 support for inverted logical ops

[turbofan] ARM64 support for inverted logical ops

Select ARM64 inverted rhs instructions (bic, orn, eon) for cases where the rhs
input is inverted (using e/xor), and add some tests for this. Also, rename xor
to eor in the ARM64 backend.

BUG=
R=bmeurer@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=24188

[m.m.capewell, 2014-09-23 15:00:36]

m.m.capewell@googlemail.com changed reviewers:
+ bmeurer@chromium.org, ulan@chromium.org

[Benedikt Meurer, 2014-09-24 06:36:07]

LGTM with nit, very nice!

https://codereview.chromium.org/591383003/diff/1/src/compiler/arm64/instructi...
File src/compiler/arm64/instruction-selector-arm64-unittest.cc (right):

https://codereview.chromium.org/591383003/diff/1/src/compiler/arm64/instructi...
src/compiler/arm64/instruction-selector-arm64-unittest.cc:1278: 
Nit: extra new line. :-)

[m.m.capewell, 2014-09-24 10:37:07]

https://codereview.chromium.org/591383003/diff/1/src/compiler/arm64/instructi...
File src/compiler/arm64/instruction-selector-arm64-unittest.cc (right):

https://codereview.chromium.org/591383003/diff/1/src/compiler/arm64/instructi...
src/compiler/arm64/instruction-selector-arm64-unittest.cc:1278: 
On 2014/09/24 06:36:07, Benedikt Meurer wrote:
> Nit: extra new line. :-)

Done.

[m.m.capewell, 2014-09-24 14:55:59]

Committed patchset #2 manually as 24188 (presubmit successful).