Generalize the code that we have for StrictEqualStub to also general a
StrictNotEqualStub and hook that up with TurboFan and Ignition. It's
still falling back to the runtime for every String (in)equality check.
R=yangguo@chromium.org
Review URL: https://codereview.chromium.org/1756793002
Cr-Commit-Position: refs/heads/master@{#34426}
Initial version of a new StrictEqualStub written as TurboFan code stub,
that implements the full strict equality comparison and is usable for
both TurboFan and Ignition (and soon for the generic CompareIC case
too). The stub is not fully optimized yet, i.e. we still go to the
runtime for string comparisons, but that'll be addressed in a follow-up
CL.
R=yangguo@chromium.org
Review URL: https://codereview.chromium.org/1753173003
Cr-Commit-Position: refs/heads/master@{#34423}
Rename the existing (patching) ToBooleanStub to ToBooleanICStub to match
our naming convention, and add a new TurboFan-powered ToBooleanStub,
which just does the ToBoolean conversion without any runtime call or
code patching, so we can use it for Ignition (and TurboFan).
Drive-by-fix: Add an Oddball::to_boolean field similar to the ones we
already have for to_string and to_number, so we don't need to actually
dispatch on the concrete Oddball at all.
R=epertoso@chromium.org, rmcilroy@chromium.org, yangguo@chromium.org
Review URL: https://codereview.chromium.org/1744163002
Cr-Commit-Position: refs/heads/master@{#34361}
Since both null and undefined are also marked as undetectable now, we
can just test that bit instead of having the CompareNilIC try to collect
feedback to speed up the general case (without the undetectable bit
being used).
Drive-by-fix: Update the type system to match the new handling of
undetectable in the runtime.
R=danno@chromium.org
Committed: https://crrev.com/666aec0348c8793e61c8633dee7ad29a514239ba
Cr-Commit-Position: refs/heads/master@{#34237}
Review URL: https://codereview.chromium.org/1722193002
Cr-Commit-Position: refs/heads/master@{#34344}
Reason for revert:
Speculative revert in attempt to fix#2 crasher on canary.
Original issue's description:
> [compiler] Drop the CompareNilIC.
>
> Since both null and undefined are also marked as undetectable now, we
> can just test that bit instead of having the CompareNilIC try to collect
> feedback to speed up the general case (without the undetectable bit
> being used).
>
> Drive-by-fix: Update the type system to match the new handling of
> undetectable in the runtime.
>
> R=danno@chromium.org
>
> Committed: https://crrev.com/666aec0348c8793e61c8633dee7ad29a514239ba
> Cr-Commit-Position: refs/heads/master@{#34237}
TBR=danno@chromium.org,verwaest@chromium.org,bmeurer@chromium.org
LOG=y
BUG=chromium:589897
NOTRY=true
Review URL: https://codereview.chromium.org/1743433002
Cr-Commit-Position: refs/heads/master@{#34308}
Reason for revert:
It is not a good idea to call CallICStub from the builtin. It might be sensitive to the frame structure. Constructing a internal frame might cause problems. It is much better to inline the code related to the type feedback vector into the builtin.
Original issue's description:
> [Interpreter] Implements calls through CallICStub in the interpreter.
>
> Calls are implemented through CallICStub to collect type feedback. Adds
> a new builtin called InterpreterPushArgsAndCallIC that pushes the
> arguments onto stack and calls CallICStub.
>
> Also adds two new bytecodes CallIC and CallICWide to indicate calls have to
> go through CallICStub.
>
> MIPS port contributed by balazs.kilvady.
>
> BUG=v8:4280, v8:4680
> LOG=N
>
> Committed: https://crrev.com/20362a2214c11a0f2ea5141b6a79e09458939cec
> Cr-Commit-Position: refs/heads/master@{#34244}
TBR=rmcilroy@chromium.org,mvstanton@chromium.org,mstarzinger@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4280, v8:4680
Review URL: https://codereview.chromium.org/1731253003
Cr-Commit-Position: refs/heads/master@{#34252}
Calls are implemented through CallICStub to collect type feedback. Adds
a new builtin called InterpreterPushArgsAndCallIC that pushes the
arguments onto stack and calls CallICStub.
Also adds two new bytecodes CallIC and CallICWide to indicate calls have to
go through CallICStub.
MIPS port contributed by balazs.kilvady.
BUG=v8:4280, v8:4680
LOG=N
Review URL: https://codereview.chromium.org/1688283003
Cr-Commit-Position: refs/heads/master@{#34244}
Since both null and undefined are also marked as undetectable now, we
can just test that bit instead of having the CompareNilIC try to collect
feedback to speed up the general case (without the undetectable bit
being used).
Drive-by-fix: Update the type system to match the new handling of
undetectable in the runtime.
R=danno@chromium.org
Review URL: https://codereview.chromium.org/1722193002
Cr-Commit-Position: refs/heads/master@{#34237}
Move the already existing fast case for %NewObject into a dedicated
FastNewObjectStub that we can utilize in places where we would otherwise
fallback to %NewObject immediately, which is rather expensive.
Also use FastNewObjectStub as the generic implementation of JSCreate,
which should make constructor inlining based on SharedFunctionInfo (w/o
specializing to a concrete closure) viable soon.
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/1708313002
Cr-Commit-Position: refs/heads/master@{#34136}
This CL introduces two new bytecodes TailCall and TailCallWide.
BUG=v8:4698,v8:4687
LOG=N
Review URL: https://codereview.chromium.org/1698273003
Cr-Commit-Position: refs/heads/master@{#34083}
Turn the fast case of ArgumentsAccessStub into a new stub
FastNewSloppyArgumentsStub, which is similar to the existing
FastNewStrictArgumentsStub, although not polished yet, and the slow
case always went to the runtime anyway, so we can just directly emit
a runtime call there.
R=mstarzinger@chromium.org
Committed: https://crrev.com/55b0b4f6d572531eec00ab6ebd8f6feb7c584e04
Cr-Commit-Position: refs/heads/master@{#33973}
Review URL: https://codereview.chromium.org/1695633003
Cr-Commit-Position: refs/heads/master@{#33986}
Turn the fast case of ArgumentsAccessStub into a new stub
FastNewSloppyArgumentsStub, which is similar to the existing
FastNewStrictArgumentsStub, although not polished yet, and the slow
case always went to the runtime anyway, so we can just directly emit
a runtime call there.
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/1695633003
Cr-Commit-Position: refs/heads/master@{#33973}
The FastNewStrictArgumentsStub is very similar to the recently added
FastNewRestParameterStub, it's actually almost a copy of it, except that
it doesn't have the fast case we have for the empty rest parameter. This
patch improves strict arguments in TurboFan and fullcodegen by up to 10x
compared to the previous version.
Also introduce proper JSSloppyArgumentsObject and JSStrictArgumentsObject
for the in-object properties instead of having them as constants in the
Heap class.
Drive-by-fix: Use this stub and the FastNewRestParameterStub in the
interpreter to avoid the runtime call overhead for strict arguments
and rest parameter creation.
R=jarin@chromium.orgTBR=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/1693513002
Cr-Commit-Position: refs/heads/master@{#33925}
Replace the somewhat awkward RestParamAccessStub, which would always
call into the runtime anyway with a proper FastNewRestParameterStub,
which is basically based on the code that was already there for strict
arguments object materialization. But for rest parameters we could
optimize even further (leading to 8-10x improvements for functions with
rest parameters), by fixing the internal formal parameter count:
Every SharedFunctionInfo has a formal_parameter_count field, which
specifies the number of formal parameters, and is used to decide whether
we need to create an arguments adaptor frame when calling a function
(i.e. if there's a mismatch between the actual and expected parameters).
Previously the formal_parameter_count included the rest parameter, which
was sort of unfortunate, as that meant that calling a function with only
the non-rest parameters still required an arguments adaptor (plus some
other oddities). Now with this CL we fix, so that we do no longer
include the rest parameter in that count. Thereby checking for rest
parameters is very efficient, as we only need to check whether there is
an arguments adaptor frame, and if not create an empty array, otherwise
check whether the arguments adaptor frame has more parameters than
specified by the formal_parameter_count.
The FastNewRestParameterStub is written in a way that it can be directly
used by Ignition as well, and with some tweaks to the TurboFan backends
and the CodeStubAssembler, we should be able to rewrite it as
TurboFanCodeStub in the near future.
Drive-by-fix: Refactor and unify the CreateArgumentsType which was
different in TurboFan and Ignition; now we have a single enum class
which is used in both TurboFan and Ignition.
R=jarin@chromium.org, rmcilroy@chromium.orgTBR=rossberg@chromium.org
BUG=v8:2159
LOG=n
Review URL: https://codereview.chromium.org/1676883002
Cr-Commit-Position: refs/heads/master@{#33809}
This CL implements PrepareForTailCall() mentioned in ES6 spec for full codegen, Crankshaft and Turbofan.
When debugger is active tail calls are disabled.
Tail calling can be enabled by --harmony-tailcalls flag.
BUG=v8:4698
LOG=Y
TBR=rossberg@chromium.org
Review URL: https://codereview.chromium.org/1609893003
Cr-Commit-Position: refs/heads/master@{#33509}
We already had hand-written optimized code for %_ToName in fullcodegen,
but the optimizing compilers always went to the runtime for %_ToName,
which is pretty bad for many of our builtins. So this CL moves the
existing native code to a ToNameStub (similar to the existing
ToStringStub), and uses the ToNameStub consistently in all compilers to
actually implement %_ToName.
Review URL: https://codereview.chromium.org/1622493002
Cr-Commit-Position: refs/heads/master@{#33460}
Adds support for calling runtime functions which return a pair of
values. Adds the bytecode CallRuntimePair. Also adds support to TurboFan
for calling stubs which return multiple values.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1568493002
Cr-Commit-Position: refs/heads/master@{#33181}
Lower JSCallConstruct with known target JSFunction to a direct call to
the target's construct_stub, and JSCallConstruct with function target to
direct call to ConstructFunction builtin.
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/1517593003
Cr-Commit-Position: refs/heads/master@{#32735}
Reason for revert:
Seems to be (mostly) responsible for the most recent Speedometer regression, not 100% sure. Let's see what the bots have to say.
Original issue's description:
> Provide call counts for constructor calls, surface them as a vector IC.
>
> CallIC and CallConstructStub look so alike, at least in the feedback they gather even if the implementation differs...and CallIC has such a nice way of surfacing the feedback (CallICNexus), that there is a request to make CallConstructStub look analogous. Enter ConstructICStub.
>
> BUG=
>
> Committed: https://crrev.com/66d5a9df62da458a51e8c7ed1811dc9660f4f418
> Cr-Commit-Position: refs/heads/master@{#32452}
TBR=mvstanton@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
Review URL: https://codereview.chromium.org/1489413006
Cr-Commit-Position: refs/heads/master@{#32599}
Also remove the ResultMode from ToBooleanStub and always return true or
false and use the same mechanism in fullcodegen. This is in preparation
for adding ToBoolean hints to TurboFan.
Drive-by-fix: We can use the power of the ToBooleanIC in TurboFan now
that the ResultMode is gone (and the runtime always returns true or
false from the miss handler).
R=mstarzinger@chromium.org
BUG=v8:4583
LOG=n
Review URL: https://codereview.chromium.org/1491223002
Cr-Commit-Position: refs/heads/master@{#32524}
CallIC and CallConstructStub look so alike, at least in the feedback they gather even if the implementation differs...and CallIC has such a nice way of surfacing the feedback (CallICNexus), that there is a request to make CallConstructStub look analogous. Enter ConstructICStub.
BUG=
Review URL: https://codereview.chromium.org/1476413003
Cr-Commit-Position: refs/heads/master@{#32452}
This is the initial step towards refactoring the regexp literation
creation code to make it less obscure and more similar to the mechanism
we use to create array and object literals. There's now a new runtime
entry %CreateRegExpLiteral with the same interface as the entries for
array and object literals, except that we still pass the flags as
string.
Instead of embedding the hand written native to clone JSRegExp instances
we now have a FastCloneRegExpStub, which behaves similar to the other
FastCloneShallowArrayStub and FastCloneShallowObjectStub that we already
had.
R=mlippautz@chromium.org, yangguo@chromium.org
Review URL: https://codereview.chromium.org/1475823003
Cr-Commit-Position: refs/heads/master@{#32255}
There's no point in collecting feedback for super constructor calls,
because in all (interesting) cases we can gather (better) feedback from
other sources (i.e. via inlining or via using a LOAD_IC to get to the
[[Prototype]] of the target). So CallConstructStub is now only used
for new Foo(...args) sites where we want to collect feedback in the
baseline compiler. The optimizing compilers, Reflect.construct and
super constructor calls use the Construct builtin directly, which allows
us to remove some weird code from the CallConstructStub (and opens the
possibility for more code sharing with the CallICStub, maybe even going
for a ConstructICStub).
Also remove the 100% redundant HCallNew instruction, which is just a
wrapper for the Construct builtin anyway (indirectly via the
CallConstructStub).
Drive-by-fix: Drop unused has_function_cache bit on Code objects.
R=mstarzinger@chromium.org, yangguo@chromium.org
BUG=v8:4413, v8:4430
LOG=n
Review URL: https://codereview.chromium.org/1469793002
Cr-Commit-Position: refs/heads/master@{#32172}
Introduce receiver conversion mode specialization for the Call and
CallFunction builtins, so we can specialize the builtin functionality
(actually an optimization only) based on static information from the
callsite (this is basically a superset of the optimizations that were
available with the CallFunctionStub and CallICStub, except that these
optimizations are correct now).
This fixes a regression introduced by the removal of CallFunctionStub,
for programs that call a lot.
R=yangguo@chromium.org
BUG=chromium:552244
LOG=n
Review URL: https://codereview.chromium.org/1436493002
Cr-Commit-Position: refs/heads/master@{#31871}
This inserts a new bit set type Function, which is used to represent
JSFunctions, and uses that type in typed lowering to optimize calls
to use the CallFunction builtin directly. Also allows for better typing
of the typeof operator, which can infern "function" for JSFunctions
properly.
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/1410343016
Cr-Commit-Position: refs/heads/master@{#31827}
This fixes receiver conversion since the Call builtin does it correctly.
BUG=v8:4526
LOG=n
Review URL: https://codereview.chromium.org/1407373007
Cr-Commit-Position: refs/heads/master@{#31823}
Use the Call builtin instead, which does the right thing(TM)
always, especially since the CallFunctionStub is going away.
R=jarin@chromium.org
BUG=v8:4413
LOG=n
Review URL: https://codereview.chromium.org/1410853007
Cr-Commit-Position: refs/heads/master@{#31794}
Call directly into the ArgumentsAdaptorTrampoline when we call a known
JSFunction, but that actual argument count doesn't match the expected
argument count.
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/1417213004
Cr-Commit-Position: refs/heads/master@{#31781}
This introduces an AllocateMutableHeapNumberStub for the boxed double
field case, where we need to allocate a box in case of a transitioning
store first. We cannot use our inline allocations for this currently,
because mutable HeapNumber objects have certain alignment constraints,
and I don't want to mess up Allocate/AllocateInNewSpace eagerly.
Also refactor the PropertyAccessInfoFactory slightly to split the long
methods into simpler parts.
R=jarin@chromium.org
BUG=v8:4470
LOG=n
Review URL: https://codereview.chromium.org/1419173007
Cr-Commit-Position: refs/heads/master@{#31695}
Change CompareNilIC to return true/false instead of 1/0, and use the
CompareNilICStub in TurboFan for abstract equality with null/undefined.
This way we don't always run into the %Equals runtime fallback when
comparing objects with null/undefined.
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/1417503008
Cr-Commit-Position: refs/heads/master@{#31596}
The plan is to implement the same idea using vector IC machinery.
Stubs implementations and scopes modifications are left untouched for now.
Review URL: https://codereview.chromium.org/1419823003
Cr-Commit-Position: refs/heads/master@{#31458}
Use %_ToLength for TO_LENGTH, implemented via a ToLengthStub
that supports a fast path for small integers. Everything else is still
handled in the runtime.
CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux_nosnap_rel
BUG=v8:4494
LOG=n
Review URL: https://codereview.chromium.org/1412963002
Cr-Commit-Position: refs/heads/master@{#31358}
This change add a new bytecode for operator new and implements it using
the Construct() builtin.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1402943002
Cr-Commit-Position: refs/heads/master@{#31293}
Adds support for calling runtime functions from the interpreter. Adds the
CallRuntime bytecode which takes a Runtime::FunctionId of the function to call
and the arguments in sequential registers. Adds a InterpreterCEntry builtin
to enable the interpreter to enter C++ code based on the functionId.
Also renames Builtin::PushArgsAndCall to Builtin::InterpreterPushArgsAndCall
and groups all the interpreter builtins together.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1362383002
Cr-Commit-Position: refs/heads/master@{#31089}
Reason for revert:
Now breaking arm32 debug bot (worked locally even with --debug-code, so I'll need to figure out what's different on the bot)
Original issue's description:
> [Interpreter] Add CallRuntime support to the interpreter.
>
> Adds support for calling runtime functions from the interpreter. Adds the
> CallRuntime bytecode which takes a Runtime::FunctionId of the function to call
> and the arguments in sequential registers. Adds a InterpreterCEntry builtin
> to enable the interpreter to enter C++ code based on the functionId.
>
> Also renames Builtin::PushArgsAndCall to Builtin::InterpreterPushArgsAndCall
> and groups all the interpreter builtins together.
>
> BUG=v8:4280
> LOG=N
>
TBR=bmeurer@chromium.org,oth@chromium.org,mstarzinger@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4280
Review URL: https://codereview.chromium.org/1379933003
Cr-Commit-Position: refs/heads/master@{#31078}
Adds support for calling runtime functions from the interpreter. Adds the
CallRuntime bytecode which takes a Runtime::FunctionId of the function to call
and the arguments in sequential registers. Adds a InterpreterCEntry builtin
to enable the interpreter to enter C++ code based on the functionId.
Also renames Builtin::PushArgsAndCall to Builtin::InterpreterPushArgsAndCall
and groups all the interpreter builtins together.
BUG=v8:4280
LOG=N
Committed: https://crrev.com/40e8424b744f8b6e3e1d93e20f23487419911dfc
Cr-Commit-Position: refs/heads/master@{#31064}
Review URL: https://codereview.chromium.org/1362383002
Cr-Commit-Position: refs/heads/master@{#31076}
This lowers JSCreateFunctionContext nodes to call the above stub for
help with allocating function contexts when possible. It also contains
an implementation for inlined allocations of such contexts, which is
still behind a flag until inlined allocations are ready for prime time.
TEST=unittests/JSTypedLoweringTest.JSCreateFunctionContext
R=mvstanton@chromium.org
Review URL: https://codereview.chromium.org/1380113002
Cr-Commit-Position: refs/heads/master@{#31068}
Reason for revert:
Broke Arm64 bot (CEntry stub is trying to pop arguments off stack when argv_in_reg, so I need to fix this).
Original issue's description:
> [Interpreter] Add CallRuntime support to the interpreter.
>
> Adds support for calling runtime functions from the interpreter. Adds the
> CallRuntime bytecode which takes a Runtime::FunctionId of the function to call
> and the arguments in sequential registers. Adds a InterpreterCEntry builtin
> to enable the interpreter to enter C++ code based on the functionId.
>
> Also renames Builtin::PushArgsAndCall to Builtin::InterpreterPushArgsAndCall
> and groups all the interpreter builtins together.
>
> BUG=v8:4280
> LOG=N
>
> Committed: https://crrev.com/40e8424b744f8b6e3e1d93e20f23487419911dfc
> Cr-Commit-Position: refs/heads/master@{#31064}
TBR=bmeurer@chromium.org,oth@chromium.org,mstarzinger@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4280
Review URL: https://codereview.chromium.org/1387543002
Cr-Commit-Position: refs/heads/master@{#31066}
Adds support for calling runtime functions from the interpreter. Adds the
CallRuntime bytecode which takes a Runtime::FunctionId of the function to call
and the arguments in sequential registers. Adds a InterpreterCEntry builtin
to enable the interpreter to enter C++ code based on the functionId.
Also renames Builtin::PushArgsAndCall to Builtin::InterpreterPushArgsAndCall
and groups all the interpreter builtins together.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1362383002
Cr-Commit-Position: refs/heads/master@{#31064}
This lowers JSCreateArgument nodes to call the ArgumentsAccessStub for
help with materializing arguments objects when possible. Along the way
this changes the calling convention of said stub to take parameters in
registers instead of on the stack.
R=mvstanton@chromium.org
Review URL: https://codereview.chromium.org/1348773002
Cr-Commit-Position: refs/heads/master@{#30919}
The StringCompareStub used to take its parameters on the (JavaScript)
stack, which made it impossible to use in TurboFan. Actually
StringCompareStub was currently completely unused. This changes the
calling convention to something TurboFan compatible and introduces a
CallInterfaceDescriptor for StringCompareStub. It also changes
HStringCompareAndBranch to use the StringCompareStub instead of using
the full blown CompareICStub for a stupid string comparison.
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/1347913003
Cr-Commit-Position: refs/heads/master@{#30818}
Adds support for JS calls to the interpreter. In order to support
calls from the interpreter, the PushArgsAndCall builtin is added
which pushes a sequence of arguments onto the stack and calls
builtin::Call.
Adds the Call bytecode.
MIPS port contributed by akos.palfi@imgtec.com in https://codereview.chromium.org/1334873002/
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1323463005
Cr-Commit-Position: refs/heads/master@{#30710}
This adds a new ToString runtime function and a fast-path ToStringStub
(which is just a simple dispatcher for existing functionality), and also
implements %_ToName using the ToStringStub.
R=mstarzinger@chromium.org, yangguo@chromium.org
BUG=v8:4307
LOG=n
Review URL: https://codereview.chromium.org/1319973007
Cr-Commit-Position: refs/heads/master@{#30442}
The previous hack with HInstanceOfKnownGlobal was not only slower,
but also very brittle and required a lot of weird hacks to support it. And
what's even more important it wasn't even correct (because a map check
on the lhs is never enough for instanceof).
The new implementation provides a sane runtime implementation
for InstanceOf plus a fast case in the InstanceOfStub, combined with
a proper specialization in the case of a known global in CrankShaft,
which does only the prototype chain walk (coupled with a code
dependency on the known global).
As a drive-by-fix: Also fix the incorrect Object.prototype.isPrototypeOf
implementation.
BUG=v8:4376
LOG=y
Review URL: https://codereview.chromium.org/1304633002
Cr-Commit-Position: refs/heads/master@{#30342}
This is the initial (big) step towards a more uniform implementation of
the ToObject abstract operation (ES6 7.1.13), where we have a fallback
implementation in JSReceiver::ToObject() and a fast (hydrogen) CodeStub
to deal with the fast case (we should be able to do more cleanup on this
in a followup CL). For natives we expose the abstract operation via a
%_ToObject intrinsic, also exposed via a macro TO_OBJECT, that unifies
the previous confusion with TO_OBJECT_INLINE, ToObject, TO_OBJECT,
$toObject and %$toObject. Now the whole implementation of the abstract
operation is context independent, meaning we don't need any magic in the
builtins object nor the native context.
R=mvstanton@chromium.org,yangguo@chromium.org
Review URL: https://codereview.chromium.org/1266013006
Cr-Commit-Position: refs/heads/master@{#29953}
This CL also adds hydrogen stubs for global loads and global stores, full-codegen and TurboFan now uses this machinery.
Review URL: https://codereview.chromium.org/1224793002
Cr-Commit-Position: refs/heads/master@{#29592}
Revert "Revert relanded strong property access CL"
Regression issues should be solved. Initial patchset is the original, subsequent patchsets are the fixing modifications.
This reverts commit 4ac7be5656.
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1199983002
Cr-Commit-Position: refs/heads/master@{#29384}
Reason:
Regressions in various benchmarks.
Revert "Revert of Revert of [strong] Implement strong mode restrictions on property access (patchset #1 id:1 of https://codereview.chromium.org/1189153002/)"
This reverts commit 41405c0470.
Revert "X87: Revert of Revert of [strong] Implement strong mode restrictions on property access."
This reverts commit 48de5f4d6b.
Revert "Fix overlapping KeyedLoadIC bitfield."
This reverts commit 4e6c956abf.
Revert "MIPS64: Fix 'Revert of Revert of [strong] Implement strong mode restrictions on property access'."
This reverts commit 74f97b0d2a.
BUG=
Review URL: https://codereview.chromium.org/1199493002
Cr-Commit-Position: refs/heads/master@{#29166}
Implements the strong mode proposal's restrictions on property access.
To be fully explored in a followup: proxies, interceptors, access checks, load from super
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1168093002
Cr-Commit-Position: refs/heads/master@{#29109}
Boolean "is_strong" parameters have begun to proliferate across areas where
strong mode semantics are different. This CL repurposes the existing
ObjectStrength enum as a replacement for them.
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1144183004
Cr-Commit-Position: refs/heads/master@{#28839}
Implements the strong mode proposal's restrictions on implicit conversions
for the binary >, >=, <, and <= operators.
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1130283002
Cr-Commit-Position: refs/heads/master@{#28370}
typeof was implemented as a runtime function. Calling it in
optimized code with a non-constant input becomes burdensome.
BUG=
Review URL: https://codereview.chromium.org/1114563003
Cr-Commit-Position: refs/heads/master@{#28260}
This introduces a JSCreateClosure operator which can be lowered by the
typed pipeline to the aforementioned stub. It also allows for further
optimizations of closure creation.
R=titzer@chromium.org
Review URL: https://codereview.chromium.org/1105513002
Cr-Commit-Position: refs/heads/master@{#28058}
Implements the strong mode proposal's restrictions on
implicit conversions for binary arithmetic operations, not
including the + special case. Adds some infrastructure
for future implementation of the restrictions for other
operators.
BUG=v8:3956
LOG=N
Review URL: https://codereview.chromium.org/1092353002
Cr-Commit-Position: refs/heads/master@{#28045}
This allows the JSIntrinsicLowering to optimize the cloning of literal
boilerplate objects using either the FastCloneShallowArrayStub or the
FastCloneShallowObjectStub when applicable.
R=mvstanton@chromium.org
Review URL: https://codereview.chromium.org/1097963002
Cr-Commit-Position: refs/heads/master@{#27974}
They are content with a dummy vector, as MISSES won't result in
changing the real vector/slot at all.
BUG=
Review URL: https://codereview.chromium.org/1067573003
Cr-Commit-Position: refs/heads/master@{#27788}
This enables adding more language modes in the future.
For maximum flexibility, LanguageMode is a bitmask, so we're not restricted to
use a sequence of language modes which are progressively stricter, but we can
express the language mode as combination of features.
For now, LanguageMode can only be "sloppy" or "strict", and there are
STATIC_ASSERTS in places which need to change when more modes are added.
LanguageMode is a bit like the old LanguageMode when "extended" mode was still
around (see https://codereview.chromium.org/8417035 and
https://codereview.chromium.org/181543002 ) except that it's transmitted through
all the layers (there's no StrictModeFlag).
BUG=
Review URL: https://codereview.chromium.org/894683003
Cr-Commit-Position: refs/heads/master@{#26419}
CodeStubs use state types defined in ic.h, but this has the unfortunate effect of spreading ic.h all over the place. Instead, define these shared state types in ic-public.h and allow ic.h to concern itself with internal state change of the ICs.
More work could/should be done here, but this is a first step.
R=yangguo@chromium.org
Review URL: https://codereview.chromium.org/565873002
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23977 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
