Fix parallel move code for swapping SIMD registers on ARM and ARM64.

Fix parallel move code for swapping SIMD registers on ARM and ARM64.

The old code did not swap the full quad-word register, but only half.

R=zerny@google.com

Committed: https://code.google.com/p/dart/source/detail?r=42044

[Florian Schneider, 2014-12-01 15:15:02]

fschneider@google.com changed reviewers:
+ zerny@google.com

[zerny-google, 2014-12-01 15:23:02]

lgtm

https://codereview.chromium.org/760383005/diff/1/runtime/vm/flow_graph_compil...
File runtime/vm/flow_graph_compiler_arm.cc (right):

https://codereview.chromium.org/760383005/diff/1/runtime/vm/flow_graph_compil...
runtime/vm/flow_graph_compiler_arm.cc:1694: QRegister dst =
destination.fpu_reg();
Nit: should we keep const here and below?

[Florian Schneider, 2014-12-01 15:24:40]

https://codereview.chromium.org/760383005/diff/1/runtime/vm/flow_graph_compil...
File runtime/vm/flow_graph_compiler_arm.cc (right):

https://codereview.chromium.org/760383005/diff/1/runtime/vm/flow_graph_compil...
runtime/vm/flow_graph_compiler_arm.cc:1694: QRegister dst =
destination.fpu_reg();
On 2014/12/01 15:23:02, zerny-google wrote:
> Nit: should we keep const here and below?

Done.

[Florian Schneider, 2014-12-01 15:25:13]

Committed patchset #2 (id:20001) manually as r42044 (presubmit successful).