We now have BreakLocation::Iterator to iterate via RelocIterator, and
create a BreakLocation when we are done iterating. The reloc info is
stored in BreakLocation in a GC-safe way and instantiated on demand.
R=ulan@chromium.org
BUG=v8:3924
LOG=N
Review URL: https://codereview.chromium.org/967323002
Cr-Commit-Position: refs/heads/master@{#26983}
Re-installing experimental natives after deserialization causes failures if
said experimental native is already included in the snapshot. However, there
is no way to tell whether a certain harmony feature has been included.
Experimental natives may also be turned on/off on-demand, which a snapshot
that includes them would not support for all cases.
The simple solution for the meantime is to never include experimental natives
in the snapshot and initialize them after deserialization on-demand.
R=vogelheim@chromium.org
Review URL: https://codereview.chromium.org/981473002
Cr-Commit-Position: refs/heads/master@{#26982}
Notes:
- Other platforms to follow later.
- This follows Chromium practice, that mostly uses this feature these days.
- The statically linked-in startup data will stay. So whoever prefers
the old way just needs to set the flag differently.
Reland crrev.com/959693002, once crrev.com/960883003 is in.
R=machenbach@chromium.org
BUG=
Review URL: https://codereview.chromium.org/956373002
Cr-Commit-Position: refs/heads/master@{#26980}
Each call to emit_32 uses 5 constant pool slots:
* the "emit_32" string
* undefined (the receiver)
* the argument (heap number)
* the load IC
* the call IC
This change cuts that down 20% to 4, by loading the undefined from the heap roots.
R=verwaest@chromium.org
BUG=
Review URL: https://codereview.chromium.org/980563002
Cr-Commit-Position: refs/heads/master@{#26979}
This is a follow-on to crrev.com/960883003, which fixed a memory leak in this code, but uncovered another, more subtle bug:
Previously, the code expected you would v8::V8::Initialize once, and v8::V8::Dispose once. The first bug was that in this case the holder_ variable would point to deallocated memory. The second bug was that once the snapshot was disposed, there was no way to get it back on a future Initialize. These are uncovered by the InitializeAndDisposeMultiple test case.
The fix is to keep memory to the raw snapshot and to then cleanly build & destroy the tables in Initialize & Dispose. Since sometimes setNativesBlob is called just after Initialize, that situation must be handled, too.
BUG=
Review URL: https://codereview.chromium.org/974943003
Cr-Commit-Position: refs/heads/master@{#26978}
Shouldn't make a difference in practice, but it's a bit more readable and it
gets the case of a 0 shift correct without undefined behavior.
BUG=463436
LOG=N
Review URL: https://codereview.chromium.org/975283002
Cr-Commit-Position: refs/heads/master@{#26975}
Bit-shifts have undefined behaviour if the shift amount is greater
or equal to the width of the type.
In this case the code would do imm32 >> 32 when rot == 0.
A newer version of Clang unrolled the loop, optimized the first
iteration away, causing the test suite to fail with:
#
# Fatal error in ../src/arm/assembler-arm.cc, line 1212
# Check failed: !rn.is(ip).
#
as well as crashing when running Chromium tests on Android (at least
we think this was the cause, see the bug).
BUG=463436, 444089
LOG=Y
Review URL: https://codereview.chromium.org/979633002
Cr-Commit-Position: refs/heads/master@{#26974}
This just contains test, no fixes. Note that some of the tests are
still disabled because they either fail or we don't want ClusterFuzz
to pick up the flag yet.
R=jarin@chromium.org
TEST=cctest/test-run-jsexceptions/Deopt,mjsunit/compiler/try-deopt
Review URL: https://codereview.chromium.org/972943004
Cr-Commit-Position: refs/heads/master@{#26968}
Problem:
Excuting with flags as "--prof --logfile-per-isolate --logfile=/path/to/filename"
expected file name: /path/to/isolate-<isolate id>-filename
current result: isolate-<isolate id>-/path/to/filename
This patch makes the file name we expected.
Review URL: https://codereview.chromium.org/960813004
Cr-Commit-Position: refs/heads/master@{#26955}
Android doesn't have swap space so if the heap goes over the physical memory
size the system will just kill us. Applying the Heap::kPointerMultipler
to heap size could cause the max heap size to be larger than physical memory.
Instead use the defaults which are based on actual physical memory configured
by Api::ConfigureDefaults().
BUG=432909
LOG=N
Review URL: https://codereview.chromium.org/960213007
Cr-Commit-Position: refs/heads/master@{#26954}
TryInline needed position only for the case when we track positions.
We can drop the position argument and use the current position from GraphBuilder.
The only problem that it doesn't match with the inline point.
The reason of that was the fact that builder had moved the position forward by
visiting arguments expressions.
I fixed this by restoring the current positon in HOptimizedGraphBuilderWithPositions::Visit*
BUG=452067
LOG=n
Review URL: https://codereview.chromium.org/962593005
Cr-Commit-Position: refs/heads/master@{#26953}
Contribution of PowerPC port (continuation of 422063005, 817143002,
866843003, and 901083004. This patch updates the ppc directories
to make them current with changes in common code, removes the
optimization to use the ool constant pool, and excludes tests that
don't pass under the ppc simulator given a 240s timeout.
Subsequent patches will cover:
- remaining optimizations for PPC
- remaining AIX changes not resolved by 4.8 compiler (4.8 is only recently available for AIX)
- incremental updates required to ppc directories due to platform specific changes made
in google repos while we complete the above steps.
modified: src/compiler/ppc/code-generator-ppc.cc
modified: src/ic/ppc/handler-compiler-ppc.cc
modified: src/ppc/assembler-ppc-inl.h
modified: src/ppc/assembler-ppc.cc
modified: src/ppc/assembler-ppc.h
modified: src/ppc/builtins-ppc.cc
modified: src/ppc/code-stubs-ppc.cc
modified: src/ppc/debug-ppc.cc
modified: src/ppc/deoptimizer-ppc.cc
modified: src/ppc/frames-ppc.cc
modified: src/ppc/frames-ppc.h
modified: src/ppc/full-codegen-ppc.cc
modified: src/ppc/lithium-codegen-ppc.cc
modified: src/ppc/lithium-ppc.cc
modified: src/ppc/lithium-ppc.h
modified: src/ppc/macro-assembler-ppc.cc
modified: src/ppc/macro-assembler-ppc.h
modified: test/cctest/cctest.status
modified: test/mjsunit/mjsunit.status
R=danno@chromium.org, svenpanne@chromium.org
BUG=
Review URL: https://codereview.chromium.org/965823002
Cr-Commit-Position: refs/heads/master@{#26951}
On Intel targets, it is cheaper to load the context from the frame
instead of loading the context as a constant (which usually involves a
PropertyCell because the context is in new space when we compile the
function).
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/970803002
Cr-Commit-Position: refs/heads/master@{#26935}
On 64-bit targets, we can skip the write barrier for Store nodes if the
input is ChangeInt32ToTagged, because the value being stored is
definitely represented as a smi then.
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/968113002
Cr-Commit-Position: refs/heads/master@{#26934}
