[wasm] Implemented F32Trunc as a turbofan graph based on int32 instructions.

[wasm] Implemented F32Trunc as a turbofan graph based on int32 instructions.

Platforms which do not provide rounding instructions (like x64 without
sse4.1, arm before v8) fall back to this new soft float inplementation.

BUG=575379
LOG=Y

R=titzer@chromium.org

Committed: https://crrev.com/a910cb4006ed52ff5f740a925f64578fafb7ba43
Cr-Commit-Position: refs/heads/master@{#33412}

[titzer, 2016-01-20 15:28:06]

lgtm

[ahaas, 2016-01-20 15:33:32]

The CQ bit was checked by ahaas@chromium.org

[commit-bot: I haz the power, 2016-01-20 15:33:36]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1611513003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1611513003/1

[commit-bot: I haz the power, 2016-01-20 15:35:49]

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

[commit-bot: I haz the power, 2016-01-20 15:35:50]

Try jobs failed on following builders:
  v8_presubmit on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_presubmit/builds/9964)

[ahaas, 2016-01-20 15:41:27]

Description was changed from

==========
[wasm] Implemented F32Trunc as a turbofan graph based on int32 instructions.

Platforms which do not provide rounding instructions (like x64 without
sse4.1, arm before v8) fall back to this new soft float inplementation.

BUG=575379

R=titzer@chromium.org
==========

to

==========
[wasm] Implemented F32Trunc as a turbofan graph based on int32 instructions.

Platforms which do not provide rounding instructions (like x64 without
sse4.1, arm before v8) fall back to this new soft float inplementation.

BUG=575379

LOG=Y

R=titzer@chromium.org
==========

[ahaas, 2016-01-20 15:41:35]

The CQ bit was checked by ahaas@chromium.org

[commit-bot: I haz the power, 2016-01-20 15:41:46]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1611513003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1611513003/1

[commit-bot: I haz the power, 2016-01-20 15:43:07]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-20 15:43:23]

Description was changed from

==========
[wasm] Implemented F32Trunc as a turbofan graph based on int32 instructions.

Platforms which do not provide rounding instructions (like x64 without
sse4.1, arm before v8) fall back to this new soft float inplementation.

BUG=575379

LOG=Y

R=titzer@chromium.org
==========

to

==========
[wasm] Implemented F32Trunc as a turbofan graph based on int32 instructions.

Platforms which do not provide rounding instructions (like x64 without
sse4.1, arm before v8) fall back to this new soft float inplementation.

BUG=575379

LOG=Y

R=titzer@chromium.org

Committed: https://crrev.com/a910cb4006ed52ff5f740a925f64578fafb7ba43
Cr-Commit-Position: refs/heads/master@{#33412}
==========

[commit-bot: I haz the power, 2016-01-20 15:43:23]

Patchset 1 (id:??) landed as
https://crrev.com/a910cb4006ed52ff5f740a925f64578fafb7ba43
Cr-Commit-Position: refs/heads/master@{#33412}