Revert of [wasm] Fix I32ReinterpretF32 and I64ReinterpretF64 on ia32.

Revert of [wasm] Fix I32ReinterpretF32 and I64ReinterpretF64 on ia32. (patchset #3 id:40001 of https://codereview.chromium.org/2639353002/ )

Reason for revert:
compilation problems on mips

Original issue's description:
> [wasm] Fix I32ReinterpretF32 and I64ReinterpretF64 on ia32.
> 
> On ia32 return statements in C++ automatically convert signalling NaNs
> to quiet NaNs, even when bit_cast is used. This CL removes all uses of
> bit_cast<float> and bit_cast<double> in the wasm compiler and wasm
> interpreter.
> 
> R=titzer@chromium.org, clemensh@chromium.org
> 
> Review-Url: https://codereview.chromium.org/2639353002
> Cr-Commit-Position: refs/heads/master@{#42512}
> Committed: https://chromium.googlesource.com/v8/v8/+/7739affa5b57e0d28674d476f63de60d71728fb6

TBR=clemensh@chromium.org,titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2645693003
Cr-Commit-Position: refs/heads/master@{#42514}
Committed: https://chromium.googlesource.com/v8/v8/+/7ff8d317b1a9d31d1fe4ec9db4800be2c72746b6

[ahaas, 2017-01-19 17:00:48]

The CQ bit was checked by ahaas@chromium.org

[ahaas, 2017-01-19 17:00:49]

Created Revert of [wasm] Fix I32ReinterpretF32 and I64ReinterpretF64 on ia32.

[commit-bot: I haz the power, 2017-01-19 17:00:58]

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, 2017-01-19 17:01:10]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1484845248885220, "parent_rev":
"ba2cd16986182ee80973f116ac277b93b7b285bf", "commit_rev":
"7ff8d317b1a9d31d1fe4ec9db4800be2c72746b6"}

[commit-bot: I haz the power, 2017-01-19 17:01:14]

Description was changed from

==========
Revert of [wasm] Fix I32ReinterpretF32 and I64ReinterpretF64 on ia32. (patchset
#3 id:40001 of https://codereview.chromium.org/2639353002/ )

Reason for revert:
compilation problems on mips

Original issue's description:
> [wasm] Fix I32ReinterpretF32 and I64ReinterpretF64 on ia32.
> 
> On ia32 return statements in C++ automatically convert signalling NaNs
> to quiet NaNs, even when bit_cast is used. This CL removes all uses of
> bit_cast<float> and bit_cast<double> in the wasm compiler and wasm
> interpreter.
> 
> R=titzer@chromium.org, clemensh@chromium.org
> 
> Review-Url: https://codereview.chromium.org/2639353002
> Cr-Commit-Position: refs/heads/master@{#42512}
> Committed:
https://chromium.googlesource.com/v8/v8/+/7739affa5b57e0d28674d476f63de60d717...

TBR=clemensh@chromium.org,titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

to

==========
Revert of [wasm] Fix I32ReinterpretF32 and I64ReinterpretF64 on ia32. (patchset
#3 id:40001 of https://codereview.chromium.org/2639353002/ )

Reason for revert:
compilation problems on mips

Original issue's description:
> [wasm] Fix I32ReinterpretF32 and I64ReinterpretF64 on ia32.
> 
> On ia32 return statements in C++ automatically convert signalling NaNs
> to quiet NaNs, even when bit_cast is used. This CL removes all uses of
> bit_cast<float> and bit_cast<double> in the wasm compiler and wasm
> interpreter.
> 
> R=titzer@chromium.org, clemensh@chromium.org
> 
> Review-Url: https://codereview.chromium.org/2639353002
> Cr-Commit-Position: refs/heads/master@{#42512}
> Committed:
https://chromium.googlesource.com/v8/v8/+/7739affa5b57e0d28674d476f63de60d717...

TBR=clemensh@chromium.org,titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2645693003
Cr-Commit-Position: refs/heads/master@{#42514}
Committed:
https://chromium.googlesource.com/v8/v8/+/7ff8d317b1a9d31d1fe4ec9db4800be2c72...
==========

[commit-bot: I haz the power, 2017-01-19 17:01:15]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/7ff8d317b1a9d31d1fe4ec9db4800be2c72...