Make HConstant::InstanceOf less ambiguous.

Make HConstant::InstanceOf less ambiguous.

R=verwaest@chromium.org

Committed: http://code.google.com/p/v8/source/detail?r=16279

[Toon Verwaest, 2013-08-14 17:48:24]

Lgtm with a comment for future reference.

https://codereview.chromium.org/23203002/diff/1/src/hydrogen-instructions.cc
File src/hydrogen-instructions.cc (right):

https://codereview.chromium.org/23203002/diff/1/src/hydrogen-instructions.cc#...
src/hydrogen-instructions.cc:2869: map->CanTransition() &&
For the record, we should also be able to omit map-checks for non-transitioning
objects, since those maps are always stable. We should just not install a
dependency.

[Michael Starzinger, 2013-08-16 08:22:50]

PTAL.

https://codereview.chromium.org/23203002/diff/1/src/hydrogen-instructions.cc
File src/hydrogen-instructions.cc (right):

https://codereview.chromium.org/23203002/diff/1/src/hydrogen-instructions.cc#...
src/hydrogen-instructions.cc:2869: map->CanTransition() &&
On 2013/08/14 17:48:24, Toon Verwaest wrote:
> For the record, we should also be able to omit map-checks for
non-transitioning
> objects, since those maps are always stable. We should just not install a
> dependency.

Done. Addressed this comment right away.

[Toon Verwaest, 2013-08-16 15:42:01]

lgtm

[Michael Starzinger, 2013-08-22 14:23:03]

Committed patchset #2 manually as r16279.