[turbofan] Implemented the TruncateFloat32ToInt64 TurboFan operator.

[turbofan] Implemented the TruncateFloat32ToInt64 TurboFan operator.

The TruncateFloat32ToInt64 operator converts a float32 to an int64 using
the round-to-zero rounding mode (truncate). If the input value is
outside the int64 range, then the result depends on the architecture. I
implemented the operator on x64, arm64, and mips64.

R=titzer@chromium.org, jacob.bramley@arm.com

Committed: https://crrev.com/1df1066c3c77464d2a68d7c8d501a5a0f3ad195a
Cr-Commit-Position: refs/heads/master@{#32315}

Committed: https://crrev.com/2f0d6288c924eacc6a20af20cdc0ff908b3944e3
Cr-Commit-Position: refs/heads/master@{#32325}

[ahaas, 2015-11-25 18:30:10]

ahaas@chromium.org changed reviewers:
+ v8-mips-ports@googlegroups.com

[titzer, 2015-11-26 08:46:14]

On 2015/11/25 18:29:19, ahaas wrote:

lgtm

[ahaas, 2015-11-26 08:47:06]

The CQ bit was checked by ahaas@chromium.org

[commit-bot: I haz the power, 2015-11-26 08:47:20]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1476063002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1476063002/1

[commit-bot: I haz the power, 2015-11-26 08:48:51]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-26 08:49:32]

Description was changed from

==========
[turbofan] Implemented the TruncateFloat32ToInt64 TurboFan operator.

The TruncateFloat32ToInt64 operator converts a float32 to an int64 using
the round-to-zero rounding mode (truncate). If the input value is
outside the int64 range, then the result depends on the architecture. I
implemented the operator on x64, arm64, and mips64.

R=titzer@chromium.org, jacob.bramley@arm.com
==========

to

==========
[turbofan] Implemented the TruncateFloat32ToInt64 TurboFan operator.

The TruncateFloat32ToInt64 operator converts a float32 to an int64 using
the round-to-zero rounding mode (truncate). If the input value is
outside the int64 range, then the result depends on the architecture. I
implemented the operator on x64, arm64, and mips64.

R=titzer@chromium.org, jacob.bramley@arm.com

Committed: https://crrev.com/1df1066c3c77464d2a68d7c8d501a5a0f3ad195a
Cr-Commit-Position: refs/heads/master@{#32315}
==========

[commit-bot: I haz the power, 2015-11-26 08:49:32]

Patchset 1 (id:??) landed as
https://crrev.com/1df1066c3c77464d2a68d7c8d501a5a0f3ad195a
Cr-Commit-Position: refs/heads/master@{#32315}

[ahaas, 2015-11-26 09:01:04]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1475343002/ by ahaas@chromium.org.

The reason for reverting is: Unexpected error occurred..

[Michael Achenbach, 2015-11-26 09:07:08]

The reason for these failures is probably outdated tryjobs. The jobs ran 14
hours ago and the CQ decided to not rerun. But in the meantime the patch didn't
fit with HEAD anymore.

[ahaas, 2015-11-26 10:07:20]

On 2015/11/26 at 09:07:08, machenbach wrote:
> The reason for these failures is probably outdated tryjobs. The jobs ran 14
hours ago and the CQ decided to not rerun. But in the meantime the patch didn't
fit with HEAD anymore.

We ran out of opcodes for the new turbofan operator introduced in this. To solve
this problem I changed the type of opcodes now from uint8_t to uint16_t to
provide additional opcodes. 

The reason why this CL broke the build was that some other CL landed after the
tryjobs of this CL which also introduced an operator with a new opcode.
Therefore there was no opcode left for the new operator of this CL.

[titzer, 2015-11-26 10:16:07]

On 2015/11/26 10:07:20, ahaas wrote:
> On 2015/11/26 at 09:07:08, machenbach wrote:
> > The reason for these failures is probably outdated tryjobs. The jobs ran 14
> hours ago and the CQ decided to not rerun. But in the meantime the patch
didn't
> fit with HEAD anymore.
> 
> We ran out of opcodes for the new turbofan operator introduced in this. To
solve
> this problem I changed the type of opcodes now from uint8_t to uint16_t to
> provide additional opcodes. 
> 
> The reason why this CL broke the build was that some other CL landed after the
> tryjobs of this CL which also introduced an operator with a new opcode.
> Therefore there was no opcode left for the new operator of this CL.

lgtm

[ahaas, 2015-11-26 10:16:24]

The CQ bit was checked by ahaas@chromium.org

[commit-bot: I haz the power, 2015-11-26 10:16:34]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1476063002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1476063002/20001

[commit-bot: I haz the power, 2015-11-26 10:28:25]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-11-26 10:28:44]

Description was changed from

==========
[turbofan] Implemented the TruncateFloat32ToInt64 TurboFan operator.

The TruncateFloat32ToInt64 operator converts a float32 to an int64 using
the round-to-zero rounding mode (truncate). If the input value is
outside the int64 range, then the result depends on the architecture. I
implemented the operator on x64, arm64, and mips64.

R=titzer@chromium.org, jacob.bramley@arm.com

Committed: https://crrev.com/1df1066c3c77464d2a68d7c8d501a5a0f3ad195a
Cr-Commit-Position: refs/heads/master@{#32315}
==========

to

==========
[turbofan] Implemented the TruncateFloat32ToInt64 TurboFan operator.

The TruncateFloat32ToInt64 operator converts a float32 to an int64 using
the round-to-zero rounding mode (truncate). If the input value is
outside the int64 range, then the result depends on the architecture. I
implemented the operator on x64, arm64, and mips64.

R=titzer@chromium.org, jacob.bramley@arm.com

Committed: https://crrev.com/1df1066c3c77464d2a68d7c8d501a5a0f3ad195a
Cr-Commit-Position: refs/heads/master@{#32315}

Committed: https://crrev.com/2f0d6288c924eacc6a20af20cdc0ff908b3944e3
Cr-Commit-Position: refs/heads/master@{#32325}
==========

[commit-bot: I haz the power, 2015-11-26 10:28:45]

Patchset 2 (id:??) landed as
https://crrev.com/2f0d6288c924eacc6a20af20cdc0ff908b3944e3
Cr-Commit-Position: refs/heads/master@{#32325}