This is partially based on r21609 but that CL was incomplete.
Function name is still non writable so one has to use defineProperty
to change the actual value.
BUG=v8:3333
LOG=N
R=adamk, mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/960343002
Cr-Commit-Position: refs/heads/master@{#26924}
This required fixing the exports_ hash map to use the appropriate
comparison function instead of pointer comparison.
BUG=v8:1569
LOG=n
Review URL: https://codereview.chromium.org/960793003
Cr-Commit-Position: refs/heads/master@{#26920}
InstallBuiltinFunctionIds stood out when looking at code that grew
strangely when compiled with default optimizations.
This change from repeated code to a loop saves 6-7 KB of machine code.
I suspect it's faster but I also suspect it's fast enough either way so
that is not really a factor. Machine code reduction seen below.
Code formatted with git cl format.
clang x64:
Total change: -5985 bytes
-------------------------------------------
+517 - Source: ?? - (gained 744, lost 227)
-------------------------------------------
New symbols:
+744: v8::internal::Genesis::InstallBuiltinFunctionIds()::builtins type=d, size=744 bytes
Removed symbols:
-4: .L.str98 type=r, size=4 bytes
... [stripped 30 similar lines]
-19: .L.str100 type=r, size=19 bytes
----------------------------------------------------------------------------------------------
-6502 - Source: /home/bratell/src/chromium/src/v8/src/bootstrapper.cc - (gained 0, lost 6502)
----------------------------------------------------------------------------------------------
Removed symbols:
-1135: v8::internal::ResolveBuiltinIdHolder(v8::internal::Handle<v8::internal::Context>, char const*) type=t, size=1135 bytes
Shrunk symbols:
-5367: v8::internal::Genesis::InstallBuiltinFunctionIds() type=t, (was 7105 bytes, now 1738 bytes)
BUG=
Review URL: https://codereview.chromium.org/918303005
Cr-Commit-Position: refs/heads/master@{#26919}
Rolling v8/buildtools to 93b3d0af1b30db55ee42bd2e983f7753153217db
Rolling v8/tools/clang to eb87c73202018d13f2f713e1304ab4edf9a6f49f
TBR=jochen@chromium.org
Review URL: https://codereview.chromium.org/962223002
Cr-Commit-Position: refs/heads/master@{#26918}
Save Unknown position as zero in RelocInfo.
Remove copy constructor of SourcePosition because it is trivial.
Mechanical replace int raw_position with SourcePosition position.
BUG=452067
LOG=n
Review URL: https://codereview.chromium.org/959203002
Cr-Commit-Position: refs/heads/master@{#26916}
Without this shortcut we generate one BooleanNot per JSUnaryNot with
number input, which is quite common in asm.js. These dead nodes then
survive until the late control reducer runs, and may prevent
optimizations in the mean time.
R=dcarney@chromium.org
Review URL: https://codereview.chromium.org/963713002
Cr-Commit-Position: refs/heads/master@{#26911}
port 6af7ca6be4 (r26886)
original commit message:
Skip the mapcheck on the global object since the global proxy and cell are already
checked (or the global object map for contextual global loads).
BUG=
Review URL: https://codereview.chromium.org/965693002
Cr-Commit-Position: refs/heads/master@{#26908}
port e9cdcb7174 (r26875)
original commit message:
Only dynamically perform access checks on the receiver if it's a JSGlobalProxy.
Proxies up the chain are guaranteed to provide access if we had access to the receiver,
since otherwise we wouldn't have been able to compile the stub in the first place.
If the security check would change, the window navigates, changing the map of the JSGlobalProxy.
BUG=
R=weiliang.lin@intel.com
Review URL: https://codereview.chromium.org/964813002
Cr-Commit-Position: refs/heads/master@{#26905}
For now we just use the RawMachineAssembler, this will be changed
later to use the whole TurboFan pipeline.
Review URL: https://codereview.chromium.org/925373002
Cr-Commit-Position: refs/heads/master@{#26902}
Reason for revert:
Need to revert the ported CL.
Original issue's description:
> MIPS: Also skip when the target is the global object.
>
> Port cc918d30b9
>
> BUG=
>
> Committed: https://crrev.com/b24a0efa447235e11b9ff9d1eeaada06131b2e04
> Cr-Commit-Position: refs/heads/master@{#26897}
TBR=danno@chromium.org,verwaest@chromium.org,paul.lind@imgtec.com,gergely.kis@imgtec.com,akos.palfi@imgtec.com,dusan.milosavljevic@imgtec.com,balazs.kilvady@imgtec.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
Review URL: https://codereview.chromium.org/963603002
Cr-Commit-Position: refs/heads/master@{#26898}
This also adds a new VariableMode, IMPORT, which will be
used to do appropriate binding for Import-declared Variables.
Only named imports are handled for now. "import *" and default
import syntaxes have had their TODOs adjusted to match the new
code structure.
BUG=v8:1569
LOG=n
Review URL: https://codereview.chromium.org/948303004
Cr-Commit-Position: refs/heads/master@{#26895}
Port e9cdcb7174
Original commit message:
Proxies up the chain are guaranteed to provide access if we had access to the receiver, since otherwise we wouldn't have been able to compile the stub in the first place. If the security check would change, the window navigates, changing the map of the JSGlobalProxy.
BUG=
Review URL: https://codereview.chromium.org/958923002
Cr-Commit-Position: refs/heads/master@{#26894}
This reverts commit b57be748b1 and
disables the test/mjsunit/debug-clearbreakpointgroup.js because
BreakLocationIterator::ClearBreakPoint is already broken for unrelated reasons (see v8:3924).
BUG=v8:3877
LOG=N
TEST=cctest/test-heap/Regress3877
Review URL: https://codereview.chromium.org/957373002
Cr-Commit-Position: refs/heads/master@{#26893}
Reason for revert:
Breaks "Simple Leaks Check"
Original issue's description:
> Default-enable external startup data for Linux for stand-alone builds.
>
> 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.
>
> BUG=
>
> Committed: https://crrev.com/6d0dcaabe55ca3556bebfd771fbc7fd560fdd4e0
> Cr-Commit-Position: refs/heads/master@{#26884}
TBR=machenbach@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
Review URL: https://codereview.chromium.org/962593003
Cr-Commit-Position: refs/heads/master@{#26885}
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.
BUG=
Review URL: https://codereview.chromium.org/959693002
Cr-Commit-Position: refs/heads/master@{#26884}
Reason for revert:
Breaks test/mjsunit/debug-clearbreakpointgroup.js on arm64.debug.
Original issue's description:
> Fix memory leak caused by field type in descriptor array.
>
> When a field type is a map, it is wrapped in a weak cell upon storing to the descriptor array.
>
> Map::GetFieldType(i) does the unwrapping.
>
> BUG=v8:3877
> LOG=N
> TEST=cctest/test-heap/Regress3877
>
> Committed: https://crrev.com/77d3ae0e119893ac8d34ea6ca090cddd5bbf987e
> Cr-Commit-Position: refs/heads/master@{#26879}
TBR=verwaest@chromium.org,ulan@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3877
Review URL: https://codereview.chromium.org/960103003
Cr-Commit-Position: refs/heads/master@{#26883}
We cannot yet detect use-before-declaration in general, because for that we'd
need to analyze the context when compiling. But we can detect an error case
where we first see a use, then a declaration.
For this, I also added end position tracking (needed for error messages) to
VariableProxy.
Note: the position naming is completely inconsistent: start_position &
end_position, position & end_position, pos & end_pos, beg_pos & end_pos, to name
a few. This doesn't fix all of it, but tries to unify towards start_position &
end_position whenever possible w/ minimal changes.
BUG=
Review URL: https://codereview.chromium.org/943543002
Cr-Commit-Position: refs/heads/master@{#26880}
When a field type is a map, it is wrapped in a weak cell upon storing to the descriptor array.
Map::GetFieldType(i) does the unwrapping.
BUG=v8:3877
LOG=N
TEST=cctest/test-heap/Regress3877
Review URL: https://codereview.chromium.org/955063002
Cr-Commit-Position: refs/heads/master@{#26879}
