MIPS: Fix deoptimization failure in WordCompare

MIPS: Fix deoptimization failure in WordCompare

In case of deoptimization after WordCompare test, the control flow is lost in the
unoptimized version of the code because wrong register is used for comparision
(a0 instead of v0)

TEST=mjsunit/regress/regress-3717
BUG=

Committed: https://crrev.com/4d0c8c77140b077c4530fc5e6b623f9516b61af3
Cr-Commit-Position: refs/heads/master@{#37845}

[ivica.bogosavljevic, 2016-07-18 19:26:43]

ivica.bogosavljevic@imgtec.com changed reviewers:
+ akos.palfi@imgtec.com, balazs.kilvady@imgtec.com,
v8-mips-ports@googlegroups.com

[ivica.bogosavljevic, 2016-07-18 19:26:43]

PTAL

One line fix

[akos.palfi.imgtec, 2016-07-18 19:42:13]

LGTM.

[ivica.bogosavljevic, 2016-07-18 20:04:54]

The CQ bit was checked by ivica.bogosavljevic@imgtec.com

[commit-bot: I haz the power, 2016-07-18 20:04:58]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-07-18 20:29:01]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-18 20:32:30]

Description was changed from

==========
MIPS: Fix deoptimization failure in WordCompare

In case of deoptimization after WordCompare test, the control flow is lost in
the
unoptimized version of the code because wrong register is used for comparision
(a0 instead of v0)

TEST=mjsunit/regress/regress-3717
BUG=
==========

to

==========
MIPS: Fix deoptimization failure in WordCompare

In case of deoptimization after WordCompare test, the control flow is lost in
the
unoptimized version of the code because wrong register is used for comparision
(a0 instead of v0)

TEST=mjsunit/regress/regress-3717
BUG=

Committed: https://crrev.com/4d0c8c77140b077c4530fc5e6b623f9516b61af3
Cr-Commit-Position: refs/heads/master@{#37845}
==========

[commit-bot: I haz the power, 2016-07-18 20:32:31]

Patchset 1 (id:??) landed as
https://crrev.com/4d0c8c77140b077c4530fc5e6b623f9516b61af3
Cr-Commit-Position: refs/heads/master@{#37845}