Optimize string "length" property access based on static type
information if possible, but also optimistically optimize the access
based on type feedback from the LoadIC.
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/1216593003
Cr-Commit-Position: refs/heads/master@{#29543}
Port 8f13b655b8
Original commit message:
- Add a TurboFanIC class, derived from TurboFanCodeStub, that
automatically distinguishes between versions of the IC called from
optimized and unoptimized code.
- Add appropriate InterfaceDescriptors for both the versions of the
stub called from unoptimized and optimized code
- Change the MathFloor TF stub generator to output either the
for-optimized or for-unoptimized version based on the minor_key
parameter.
R=danno@chromium.org, dstence@us.ibm.com, michael_dawson@ca.ibm.com
BUG=
Review URL: https://codereview.chromium.org/1207253003
Cr-Commit-Position: refs/heads/master@{#29542}
This one occurred when serializing an object. When the property getter threw an
exception, that value was skipped, but the property count wasn't updated. The
deserializer then tried to deserialize the wrong value.
BUG=chromium:506549
R=jarin@chromium.org
LOG=n
Review URL: https://codereview.chromium.org/1220193004
Cr-Commit-Position: refs/heads/master@{#29541}
- Add a TurboFanIC class, derived from TurboFanCodeStub, that
automatically distinguishes between versions of the IC called from
optimized and unoptimized code.
- Add appropriate InterfaceDescriptors for both the versions of the
stub called from unoptimized and optimized code
- Change the MathFloor TF stub generator to output either the
for-optimized or for-unoptimized version based on the minor_key
parameter.
Committed: https://crrev.com/8f13b655b8a10dae2116dd18b32f09337bb2d410
Cr-Commit-Position: refs/heads/master@{#29534}
Review URL: https://codereview.chromium.org/1225943002
Cr-Commit-Position: refs/heads/master@{#29539}
Reason for revert:
Failure on compiling runtime.js on windows
Original issue's description:
> Add unoptimized/optimized variants of MathFloor TF code stub
>
> - Add a TurboFanIC class, derived from TurboFanCodeStub, that
> automatically distinguishes between versions of the IC called from
> optimized and unoptimized code.
> - Add appropriate InterfaceDescriptors for both the versions of the
> stub called from unoptimized and optimized code
> - Change the MathFloor TF stub generator to output either the
> for-optimized or for-unoptimized version based on the minor_key
> parameter.
>
> Committed: https://crrev.com/8f13b655b8a10dae2116dd18b32f09337bb2d410
> Cr-Commit-Position: refs/heads/master@{#29534}
TBR=mvstanton@chromium.org,bmeurer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review URL: https://codereview.chromium.org/1220783006
Cr-Commit-Position: refs/heads/master@{#29535}
- Add a TurboFanIC class, derived from TurboFanCodeStub, that
automatically distinguishes between versions of the IC called from
optimized and unoptimized code.
- Add appropriate InterfaceDescriptors for both the versions of the
stub called from unoptimized and optimized code
- Change the MathFloor TF stub generator to output either the
for-optimized or for-unoptimized version based on the minor_key
parameter.
Review URL: https://codereview.chromium.org/1225943002
Cr-Commit-Position: refs/heads/master@{#29534}
Port 4b38c15817
Original commit message:
We actually need round to zero truncation to implement the counterpart
of LDoubleToI in TurboFan, which tries to convert a double to an integer
as required for keyed load/store optimizations.
Drive-by-cleanup: Reduce some code duplication in the InstructionSelector
implementations.
R=bmeurer@chromium.org, dstence@us.ibm.com, michael_dawson@ca.ibm.com
BUG=
Review URL: https://codereview.chromium.org/1220373003
Cr-Commit-Position: refs/heads/master@{#29533}
This prepares for making multiple measurements of one trace.
For this, the suite/trace configurations need to be
independent of the measurement instances.
BUG=chromium:507213
LOG=n
NOTRY=true
Review URL: https://codereview.chromium.org/1227033002
Cr-Commit-Position: refs/heads/master@{#29531}
Smi immediates are not supported, so instructions with Smi representations need their constants in a register. LAddI has already been doing this. The manifestation of the bug was that an operation would compute 0 instead of the correct result.
BUG=chromium:478612
LOG=y
R=verwaest@chromium.org
Review URL: https://codereview.chromium.org/1224623017
Cr-Commit-Position: refs/heads/master@{#29529}
We actually need round to zero truncation to implement the counterpart
of LDoubleToI in TurboFan, which tries to convert a double to an integer
as required for keyed load/store optimizations.
Drive-by-cleanup: Reduce some code duplication in the InstructionSelector
implementations.
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/1225993002
Cr-Commit-Position: refs/heads/master@{#29527}
The RawMachineAssembler will be used to build the interpreter, so it needs
to move back to src/compiler.
This reverts commit b5b00cc031.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1221303014
Cr-Commit-Position: refs/heads/master@{#29519}
If we compile handlers to call accessors, Debug::HandleStepIn won't get
called. Therefore we need to clear ICs each time. This has not been
necessary before because we used to patch ICs for breaking, and restored
them with cleared ICs. This is no longer the case. We do not use ICs
for breaking anymore, so they are not implicitly cleared any longer.
R=mvstanton@chromium.org
BUG=v8:4269
LOG=N
Review URL: https://codereview.chromium.org/1212253009
Cr-Commit-Position: refs/heads/master@{#29518}
This removes various boilouts for super constructor calls from the
TurboFan pipeline and unifies them. It also disables and optimization
which breaks references to uninitialized const this variables.
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/1222843004
Cr-Commit-Position: refs/heads/master@{#29516}
This unifies the existing frame constants that are the same accross all
architectures. It also adds a new kOriginalConstructorOffset constant
for construct frames and uses is in full-codegen.
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/1220223005
Cr-Commit-Position: refs/heads/master@{#29509}
TurboFan OSR installs the CompileOptimized builtin on JSFunctions, which
means that we never evict the OSR code objects for such functions from
eager deopts.
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/1220813018
Cr-Commit-Position: refs/heads/master@{#29507}
Reason for revert:
[Sheriff] Test hangs sometimes and times out flakily. E.g.: http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosse3/builds/4551/steps/Check%20%28flakes%29/logs/d8-worker-sharedarray..
Original issue's description:
> Fix bug when transferring SharedArrayBuffer to multiple Workers.
>
> Previously, the serialization code would call Externalize for every transferred
> ArrayBuffer or SharedArrayBuffer, but that function can only be called once. If
> the buffer is already externalized, we should call GetContents instead.
>
> Also fix use-after-free bug when transferring ArrayBuffers. The transferred
> ArrayBuffer must be internalized in the new isolate, or be managed by the
> Shell. The current code gives it to the isolate externalized and frees it
> immediately afterward when the SerializationData object is destroyed.
>
> BUG=chromium:497295
> R=jarin@chromium.org
> LOG=n
>
> Committed: https://crrev.com/dd7962bf7838f8379ba776ee6b7b0e4d3bec2140
> Cr-Commit-Position: refs/heads/master@{#29499}
TBR=jarin@chromium.org,jochen@chromium.org,binji@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:497295
Review URL: https://codereview.chromium.org/1224843008
Cr-Commit-Position: refs/heads/master@{#29506}
port 1fa4285e1c (r29436).
original commit message:
This involves:
- Enabling the tail call optimization reducer in all cases.
- Adding an addition flag to CallFunctionParameters to mark call sites
that can be tail-called enabled.
- Only set the tail-call flag for %_CallFunction.
BUG=
R=weiliang.lin@intel.com
Review URL: https://codereview.chromium.org/1228463003
Cr-Commit-Position: refs/heads/master@{#29504}
This implements the proper initialization of the new.target internal
variable in the AstGraphBuilder. For now this uses a runtime call that
cannot handle inlined frames correctly.
R=arv@chromium.org
Review URL: https://codereview.chromium.org/1212813008
Cr-Commit-Position: refs/heads/master@{#29500}
Previously, the serialization code would call Externalize for every transferred
ArrayBuffer or SharedArrayBuffer, but that function can only be called once. If
the buffer is already externalized, we should call GetContents instead.
Also fix use-after-free bug when transferring ArrayBuffers. The transferred
ArrayBuffer must be internalized in the new isolate, or be managed by the
Shell. The current code gives it to the isolate externalized and frees it
immediately afterward when the SerializationData object is destroyed.
BUG=chromium:497295
R=jarin@chromium.org
LOG=n
Review URL: https://codereview.chromium.org/1215233004
Cr-Commit-Position: refs/heads/master@{#29499}
where bound functions' length was made configurable. The bootstrapper must be kept in sync to avoid polymorphism.
BUG=chromium:500686
LOG=n
R=verwaest@chromium.org
Review URL: https://codereview.chromium.org/1221383003
Cr-Commit-Position: refs/heads/master@{#29496}
