Fix HCheckValue::Canonicalize wrt uninitialized HConstant unique.

Fix HCheckValue::Canonicalize wrt uninitialized HConstant unique.

R=titzer@chromium.org
BUG=348280
LOG=N

Committed: https://code.google.com/p/v8/source/detail?r=19642

[titzer, 2014-03-03 12:42:38]

https://codereview.chromium.org/183383006/diff/1/src/hydrogen-instructions.cc
File src/hydrogen-instructions.cc (right):

https://codereview.chromium.org/183383006/diff/1/src/hydrogen-instructions.cc...
src/hydrogen-instructions.cc:1570: Unique<Object> unique =
HConstant::cast(value())->GetUnique();
Can you move this logic into a method on HConstant instead, e.g. EqualsUnique()
?

[Yang, 2014-03-03 13:09:36]

On 2014/03/03 12:42:38, titzer wrote:
> https://codereview.chromium.org/183383006/diff/1/src/hydrogen-instructions.cc
> File src/hydrogen-instructions.cc (right):
> 
>
https://codereview.chromium.org/183383006/diff/1/src/hydrogen-instructions.cc...
> src/hydrogen-instructions.cc:1570: Unique<Object> unique =
> HConstant::cast(value())->GetUnique();
> Can you move this logic into a method on HConstant instead, e.g.
EqualsUnique()
> ?

Uploaded new patch set.

[titzer, 2014-03-03 15:24:12]

lgtm

[Yang, 2014-03-04 08:08:15]

Committed patchset #2 manually as r19642 (tree was closed).