Ross McIlroy
31a3cfbc10
[Test] Add PrepareForOptimization to mjsunit/compiler
...
BUG=v8:8801
Change-Id: I9d9d9824c6c9ad0176bbfd3723da1b578b17c256
Reviewed-on: https://chromium-review.googlesource.com/c/1495555
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60001}
2019-03-04 12:25:41 +00:00
Michael Starzinger
05f3b27cdd
Reland "[flags] Remove some dead Crankshaft flags."
...
This is a reland of ec6da23bfeR=bmeurer@chromium.org
> BUG=v8:6408
>
> Change-Id: I34abbcdc2fc47df44938bac0e59f9982c935c657
> Reviewed-on: https://chromium-review.googlesource.com/569963
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#46631}
Bug: v8:6408
Change-Id: I8a856e25d56e27bccb79588b2e5ee4369d7c5fe5
Reviewed-on: https://chromium-review.googlesource.com/570050
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46637}
2017-07-13 13:15:34 +00:00
Michael Starzinger
5d16e866e7
Revert "[flags] Remove some dead Crankshaft flags."
...
This reverts commit ec6da23bfehttps://chromium-review.googlesource.com/569963
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#46631}
TBR=mstarzinger@chromium.org ,bmeurer@chromium.org
Change-Id: Iee077911ae7d877c6a9d2edb548e3c04345b47ce
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6408
Reviewed-on: https://chromium-review.googlesource.com/570049
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46632}
2017-07-13 12:24:56 +00:00
Michael Starzinger
ec6da23bfe
[flags] Remove some dead Crankshaft flags.
...
R=bmeurer@chromium.org
BUG=v8:6408
Change-Id: I34abbcdc2fc47df44938bac0e59f9982c935c657
Reviewed-on: https://chromium-review.googlesource.com/569963
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46631}
2017-07-13 11:56:14 +00:00
bmeurer
00f7d1f5f8
[intrinsics] Kill the %_IsMinusZero intrinsic.
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By now only the default %TypedArray%.prototype.sort compare function
and the JS implementation of SameValueZero were still using the odd
%_IsMinusZero intrinsic, whose semantics both included a number check
(actually HeapNumber test) plus testing if the heap number stores the
special -0 value. In both cases we already know that we deal with
number so we can reduce it to a simple number test for -0, which can
be expressed via dividing 1 by that value and checking the sign of
the result. In case of the compare function, we can be even smarter
and work with the reciprocal values in case x and y are equal to 0
(although long term we should probably rewrite the fast case for
the typed array sorting function in C++ anyway, which will be way,
way faster than our handwritten callback-style, type-feedback
polluted JS implementation).
R=yangguo@chromium.org
Review URL: https://codereview.chromium.org/1680783002
Cr-Commit-Position: refs/heads/master@{#33833}
2016-02-09 06:28:53 +00:00
yangguo@chromium.org
df9665032e
Introduce %_IsMinusZero.
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R=jkummerow@chromium.org
BUG=
Review URL: https://codereview.chromium.org/63423004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17639 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-11-12 11:53:13 +00:00
jkummerow@chromium.org
f0811f4e6f
Fix and cleanup can_be_minus_zero computation
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R=rossberg@chromium.org
Review URL: https://codereview.chromium.org/18434004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15546 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-08 11:15:24 +00:00
