MIPS: Fix unaligned read and write in wasm-debug.cc

MIPS: Fix unaligned read and write in wasm-debug.cc

Fix crashes in two tests cctest/test-wasm-interpreter-entry/TestArgumentPassing_AllTypes and
cctest/test-wasm-interpreter-entry/TestArgumentPassing_float_double related to accessing
double value through unaligned pointer. This issue is present on those architectures
that do not support unaligned access.

TEST=cctest/test-wasm-interpreter-entry/TestArgumentPassing_AllTypes,
     cctest/test-wasm-interpreter-entry/TestArgumentPassing_float_double
BUG=

Review-Url: https://codereview.chromium.org/2705253003
Cr-Commit-Position: refs/heads/master@{#43387}
Committed: https://chromium.googlesource.com/v8/v8/+/8e89201a4dccbb101ed60509a0474fda29d2f2e2

[ivica.bogosavljevic, 2017-02-22 15:31:49]

ivica.bogosavljevic@imgtec.com changed reviewers:
+ titzer@chromium.org

[ivica.bogosavljevic, 2017-02-22 15:31:49]

PTAL

[titzer, 2017-02-22 15:49:20]

On 2017/02/22 15:31:49, ivica.bogosavljevic wrote:
> PTAL

lgtm

[ivica.bogosavljevic, 2017-02-23 08:21:47]

The CQ bit was checked by ivica.bogosavljevic@imgtec.com to run a CQ dry run

[commit-bot: I haz the power, 2017-02-23 08:21:49]

Dry run: 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, 2017-02-23 09:28:04]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-02-23 09:28:04]

Dry run: This issue passed the CQ dry run.

[ivica.bogosavljevic, 2017-02-23 10:52:46]

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

[commit-bot: I haz the power, 2017-02-23 10:52:50]

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, 2017-02-23 10:54:11]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1487847166816910, "parent_rev":
"24eed5d2e4593a7f8bdf20e18fbe5206d980a7b7", "commit_rev":
"8e89201a4dccbb101ed60509a0474fda29d2f2e2"}

[commit-bot: I haz the power, 2017-02-23 10:54:16]

Description was changed from

==========
MIPS: Fix unaligned read and write in wasm-debug.cc

Fix crashes in two tests
cctest/test-wasm-interpreter-entry/TestArgumentPassing_AllTypes and
cctest/test-wasm-interpreter-entry/TestArgumentPassing_float_double related to
accessing
double value through unaligned pointer. This issue is present on those
architectures
that do not support unaligned access.

TEST=cctest/test-wasm-interpreter-entry/TestArgumentPassing_AllTypes,
     cctest/test-wasm-interpreter-entry/TestArgumentPassing_float_double
BUG=
==========

to

==========
MIPS: Fix unaligned read and write in wasm-debug.cc

Fix crashes in two tests
cctest/test-wasm-interpreter-entry/TestArgumentPassing_AllTypes and
cctest/test-wasm-interpreter-entry/TestArgumentPassing_float_double related to
accessing
double value through unaligned pointer. This issue is present on those
architectures
that do not support unaligned access.

TEST=cctest/test-wasm-interpreter-entry/TestArgumentPassing_AllTypes,
     cctest/test-wasm-interpreter-entry/TestArgumentPassing_float_double
BUG=

Review-Url: https://codereview.chromium.org/2705253003
Cr-Commit-Position: refs/heads/master@{#43387}
Committed:
https://chromium.googlesource.com/v8/v8/+/8e89201a4dccbb101ed60509a0474fda29d...
==========

[commit-bot: I haz the power, 2017-02-23 10:54:16]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/8e89201a4dccbb101ed60509a0474fda29d...