[wasm] mips: Turn off signalling NaN tests on mips and mips64.

[wasm] mips: Turn off signalling NaN tests on mips and mips64.

I turn the test off for now. The problem is that mips does not deal with
signalling NaNs as expected.

@v8-mips-ports: Could it be that the mips simulator deals differently
with signalling NaNs than the actual hardware? The implementation that
is tested in these tests assumes that sNaN * 1.0 = qNaN, where the bits
of sNaN and qNaN are equal except for the most significant mantissa bit.
This assumption holds for the simulator, but seems not to hold for actual
mips hardware. Do you know more about that?

R=mstarzinger@chromium.org, titzer@chromium.org, v8-mips-ports@googlegroups.com

Committed: https://crrev.com/5dc96ae28dc2bcf467057e722394438b2388bc8f
Cr-Commit-Position: refs/heads/master@{#34278}

[ahaas, 2016-02-25 09:31:19]

Description was changed from

==========
[wasm] mips: Turn off signalling NaN tests on mips and mips64.

I turn the test off for now. The problem is that mips does not deal with
signalling NaNs as expected.

@v8-mips-ports: Could it be that the mips simulator deals differently
with signalling NaNs than the actual hardware? The implementation that
is tested in these tests assumes that sNaN * 1.0 = qNaN, where the bits
of sNaN and qNaN are equal except for most significant mantissa bit.
This assumption holds for the simulator, but seems not to hold for actual
mips hardware. Do you know more about that?

R=mstarzinger@chromium.org, titzer@chromium.org, v8-mips-ports@googlegroups.com
==========

to

==========
[wasm] mips: Turn off signalling NaN tests on mips and mips64.

I turn the test off for now. The problem is that mips does not deal with
signalling NaNs as expected.

@v8-mips-ports: Could it be that the mips simulator deals differently
with signalling NaNs than the actual hardware? The implementation that
is tested in these tests assumes that sNaN * 1.0 = qNaN, where the bits
of sNaN and qNaN are equal except for the most significant mantissa bit.
This assumption holds for the simulator, but seems not to hold for actual
mips hardware. Do you know more about that?

R=mstarzinger@chromium.org, titzer@chromium.org, v8-mips-ports@googlegroups.com
==========

[Michael Starzinger, 2016-02-25 09:39:08]

LGTM. Thanks!

[ahaas, 2016-02-25 09:43:45]

The CQ bit was checked by ahaas@chromium.org

[commit-bot: I haz the power, 2016-02-25 09:43:48]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1735673003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1735673003/1

[commit-bot: I haz the power, 2016-02-25 09:50:03]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-02-25 09:50:47]

Description was changed from

==========
[wasm] mips: Turn off signalling NaN tests on mips and mips64.

I turn the test off for now. The problem is that mips does not deal with
signalling NaNs as expected.

@v8-mips-ports: Could it be that the mips simulator deals differently
with signalling NaNs than the actual hardware? The implementation that
is tested in these tests assumes that sNaN * 1.0 = qNaN, where the bits
of sNaN and qNaN are equal except for the most significant mantissa bit.
This assumption holds for the simulator, but seems not to hold for actual
mips hardware. Do you know more about that?

R=mstarzinger@chromium.org, titzer@chromium.org, v8-mips-ports@googlegroups.com
==========

to

==========
[wasm] mips: Turn off signalling NaN tests on mips and mips64.

I turn the test off for now. The problem is that mips does not deal with
signalling NaNs as expected.

@v8-mips-ports: Could it be that the mips simulator deals differently
with signalling NaNs than the actual hardware? The implementation that
is tested in these tests assumes that sNaN * 1.0 = qNaN, where the bits
of sNaN and qNaN are equal except for the most significant mantissa bit.
This assumption holds for the simulator, but seems not to hold for actual
mips hardware. Do you know more about that?

R=mstarzinger@chromium.org, titzer@chromium.org, v8-mips-ports@googlegroups.com

Committed: https://crrev.com/5dc96ae28dc2bcf467057e722394438b2388bc8f
Cr-Commit-Position: refs/heads/master@{#34278}
==========

[commit-bot: I haz the power, 2016-02-25 09:50:47]

Patchset 1 (id:??) landed as
https://crrev.com/5dc96ae28dc2bcf467057e722394438b2388bc8f
Cr-Commit-Position: refs/heads/master@{#34278}