Also support additional number types (singleton ranges, NaN and minus
zero) for constant propagation in typed lowering.
TEST=unittests
Review URL: https://codereview.chromium.org/829303002
Cr-Commit-Position: refs/heads/master@{#25963}
Test case LowerAnyToBoolean_tagged_tagged invokes "Linkage::GetStubCallDescriptor(...)"
function but this function is not implemented on turbofan unsupported platform.
BUG=
Review URL: https://codereview.chromium.org/836973002
Cr-Commit-Position: refs/heads/master@{#25960}
Introduce a new AnyToBoolean simplified operator to handle the later
lowering of boolean conversions. Previously we tried to hack that with
the generic JSToBoolean, having its context set to zero, but that lead
to various problems/bugs and did not handle all cases.
TEST=cctest,unittests
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/800833003
Cr-Commit-Position: refs/heads/master@{#25958}
This prevents eliminating effectful statements before the loop.
BUG=
Review URL: https://codereview.chromium.org/830923002
Cr-Commit-Position: refs/heads/master@{#25953}
We cannot just clear the result register optimistically, because the
register allocator might assign the same register to result and buffer.
TEST=mjsunit/compiler/regress-445858
BUG=chromium:445858
LOG=y
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/828303002
Cr-Commit-Position: refs/heads/master@{#25950}
Set a valid reason for disabling optimization when using
%NeverOptimizeFunction.
TEST=mjsunit/compiler/regress-445732
BUG=chromium:445732
LOG=y
TBR=machenbach@chromium.org
Review URL: https://codereview.chromium.org/832003002
Cr-Commit-Position: refs/heads/master@{#25949}
Change InstructionOperand to use a 64-bit field for encoding the operand
information instead of the 32-bit field that was used before. Ideally we
wouldn't use the Zone-allocated bit field at all, and use an integer
instead of the pointer; but that requires fixing the register allocator
first, which will take some time.
TEST=mjsunit/compiler/regress-3786
BUG=v8:3786
LOG=y
Review URL: https://codereview.chromium.org/826673002
Cr-Commit-Position: refs/heads/master@{#25941}
We have safe fallbacks in all cases, and it's possible to hit those
codepaths, e.g., on Linux when /proc is not mounted
BUG=v8:3544
R=ulan@chromium.org
LOG=n
Review URL: https://codereview.chromium.org/818213002
Cr-Commit-Position: refs/heads/master@{#25940}
Also slightly refactor the NodeCache and CommonNodeCache classes to
reduce inherent overhead of caching.
TEST=cctest
Review URL: https://codereview.chromium.org/822923002
Cr-Commit-Position: refs/heads/master@{#25937}
This is a temporary workaround to ensure that we crash in release mode
instead of running into undefined behavior.
BUG=chromium:444681
LOG=y
R=ishell@chromium.org
Review URL: https://codereview.chromium.org/800713006
Cr-Commit-Position: refs/heads/master@{#25933}
This is not needed anymore since all ICs use weak cells to embed maps.
BUG=v8:3629
LOG=N
Review URL: https://codereview.chromium.org/817223003
Cr-Commit-Position: refs/heads/master@{#25928}
This API is used by Blink to inform V8 about HTML frames being disposed.
Using the optional parameter, Blink can tell V8 whether the disposed
frame was a main frame. In that case, we might want to reset GC
parameters
BUG=none
R=hpayer@chromium.org
LOG=y
Review URL: https://codereview.chromium.org/823583003
Cr-Commit-Position: refs/heads/master@{#25926}
The CommonOperatorReducer currently takes care of redundant Phis,
EffectPhis and Selects. This functionality overlaps with ControlReducer,
but is required to make certain optimizations effective, since the
ControlReducer only runs really early and really late in the pipeline
and therefore other reducers aren't reapplied properly after redundant
phi/select elimination.
TEST=unittests
R=hpayer@chromium.org
Review URL: https://codereview.chromium.org/817243003
Cr-Commit-Position: refs/heads/master@{#25922}
The test driver doesn't know at the moment if optdebug 1 or 2 has been used (the first is used on the bots, the second
locally in quickcheck). It can't know therefore if slow
asserts can be enabled or not. Trying to enable them leads
to a warning if they weren't compiled, which causes webkit
1:1 text comparison to fail.
Review URL: https://codereview.chromium.org/819033002
Cr-Commit-Position: refs/heads/master@{#25921}
This issue is exposed by CL https://codereview.chromium.org/807273003.
The DeoptimizeIf(...) function will generate more Assembler code and the
distance between the link point and the bind point is larger then near
link distance (127) for labels.
BUG=
Review URL: https://codereview.chromium.org/820963002
Cr-Commit-Position: refs/heads/master@{#25914}
