This adds a handler table field to the header of our BytecodeArray
objects. The field will eventually hold a range-based handler table
similar to full-codegen code, to support exception handlong within
interpreted code.
R=oth@chromium.org
BUG=v8:4674
LOG=n
Review URL: https://codereview.chromium.org/1606493002
Cr-Commit-Position: refs/heads/master@{#33373}
VisitObjectLiteral has two parts. First it creates a literal and then
sets properties or accessor properties. Setting properties requires a
runtime call and it expects the literal object which was created in the
first part is contiguous with other registers it allocates. Since these
are allocated in a different scope they are not always contiguous.
This causes problems with mjsunit/setter-on-constructor-prototype.js.
This cl fixes by allocating contiguous registers in the inner scope.
Literal value is copied into the newly allocated register so that all
the required registers are always contiguous.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1588903002
Cr-Commit-Position: refs/heads/master@{#33371}
Reason for revert:
Code is incorrect for -0.
Original issue's description:
> [turbofan] Implement rounding of floats on x64 and ia32 without sse4.1.
>
> The implementation sets the rounding mode flag and then uses the
> cvtsd2si and cvtsi2sd instructions (convert between float and int) to do
> the rounding. Input values outside int range either don't have to be
> rounded anyways, or are rounded by calculating input + 2^52 - 2^52 for
> positive inputs, or input -2^52 + 2^52 for negative inputs. The original
> rounding mode is restored afterwards.
>
> R=titzer@chromium.org
>
> B=575379
>
> Committed: https://crrev.com/fa5d09e547abe79a8c82f780deb980c53ad78beb
> Cr-Commit-Position: refs/heads/master@{#33367}
TBR=titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review URL: https://codereview.chromium.org/1593313010
Cr-Commit-Position: refs/heads/master@{#33369}
The implementation sets the rounding mode flag and then uses the
cvtsd2si and cvtsi2sd instructions (convert between float and int) to do
the rounding. Input values outside int range either don't have to be
rounded anyways, or are rounded by calculating input + 2^52 - 2^52 for
positive inputs, or input -2^52 + 2^52 for negative inputs. The original
rounding mode is restored afterwards.
R=titzer@chromium.org
B=575379
Review URL: https://codereview.chromium.org/1584663007
Cr-Commit-Position: refs/heads/master@{#33367}
This became temporarily a big issue, because spreads are desugared
into do-expressions. This patch fixes the problem with having
spreads as parameter initializers in arrow expressions, e.g., this
line would crash:
[], ((x = [...[42]]) => x)();
R=rossberg@chromium.org
BUG=chromium:578038
LOG=N
Review URL: https://codereview.chromium.org/1581403007
Cr-Commit-Position: refs/heads/master@{#33365}
In many places we over-specify runtime-calls by explicitly mentioning
again the argument count. Except for var-args runtime-functions we can
easily deduce this from the parameters in runtime.h.
BUG=
Review URL: https://codereview.chromium.org/1596293003
Cr-Commit-Position: refs/heads/master@{#33363}
Proxy.
If a constructable Proxy changes the target's prototype during the
prototype lookup the target's initial map stays uninitialized half-way
during object construction.
LOG=n
BUG=chromium:578039
Review URL: https://codereview.chromium.org/1586203003
Cr-Commit-Position: refs/heads/master@{#33359}
Make ForInPrepare take a kRegTriple8 operand and ForInNext take kRegPair8
operand for cache state. This is to ensure that the cache state output of
ForInPrepare is in consecutive registers to allow us to deopt the
ForInPrepare node from TF->Ignition (to be done in a followup CL).
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1584813002
Cr-Commit-Position: refs/heads/master@{#33357}
Adds support for variable and function declarations in lookup slots to the
interpreter.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1583783003
Cr-Commit-Position: refs/heads/master@{#33355}
This removes the need to pass in the current unoptimized code when
requesting optimized code for a function. Note that the notion of
unoptimized code becomes moot when optimizing from the interpreter
bytecode, hence the API should not encode such a dependency.
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/1588293005
Cr-Commit-Position: refs/heads/master@{#33353}
port 84f8a506e2 (r33334)
original commit message:
Adds a ForInPrepare Runtime function which returns a triple of
cache_type, cache_array and cache_length.
This requires adding support to CEntryStub to call runtime functions
which return a ObjectTriple - a struct containing three Object*
pointers. Also did some cleanup of the x64 CEntryStub to avoid
replicated code.
Replaces the interpreter's use of the ad-hock InterpreterForInPrepare
Runtime function with ForInPrepare in preparation for fixing deopt in
BytecodeGraphBuilder for ForIn (which will be done in a followup CL).
MIPS port contributed by Balazs Kilvady <balazs.kilvady@imgtec.com>.
BUG=
Review URL: https://codereview.chromium.org/1603493002
Cr-Commit-Position: refs/heads/master@{#33352}
port e06f7d784e (r33347)
original commit message:
The new operator converts an int32 input to float32. If the input cannot
be represented exactly in float32, the value is rounded using the
round-ties-even rounding mode (the default rounding mode).
I provide implementations of the new operator for x64, ia32, arm, arm64,
mips, mips64, ppc, and ppc64.
BUG=
Review URL: https://codereview.chromium.org/1597403002
Cr-Commit-Position: refs/heads/master@{#33351}
We don't need to treat as "spills in deferred blocks" ranges that have
no spill range, or that have a spill operand.
Review URL: https://codereview.chromium.org/1597883002
Cr-Commit-Position: refs/heads/master@{#33349}
This may have made more sense in the old module design (where
"unification" was a thing), but as-is it's only used for a few
asserts in debug mode. These asserts don't make much sense inside
ModuleDescriptor; instead, as the modules implementation is fleshed
out, I expect the appropriate replacement asserts to show up at the
use of the ModuleDescriptor.
Review URL: https://codereview.chromium.org/1598433006
Cr-Commit-Position: refs/heads/master@{#33345}
This includes anonymous Function, Generator, and Class declarations when
preceded by 'export default'. Parsing only at the moment, nothing useful is
done with the parsed Function/ClassLiteral.
BUG=v8:1569
LOG=n
Review URL: https://codereview.chromium.org/1589173002
Cr-Commit-Position: refs/heads/master@{#33344}
Port 84f8a506e2
Original commit message:
Adds a ForInPrepare Runtime function which returns a triple of
cache_type, cache_array and cache_length.
This requires adding support to CEntryStub to call runtime functions
which return a ObjectTriple - a struct containing three Object*
pointers. Also did some cleanup of the x64 CEntryStub to avoid
replicated code.
Replaces the interpreter's use of the ad-hock InterpreterForInPrepare
Runtime function with ForInPrepare in preparation for fixing deopt in
BytecodeGraphBuilder for ForIn (which will be done in a followup CL).
R=rmcilroy@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1586153004
Cr-Commit-Position: refs/heads/master@{#33342}
Port c86f1897ac
Original commit message:
When derived constructors return a non-object (or not undefined) we
currently throw an exception directly in the callee context. This was
achieved by desugaring the return statement for derived classes. To
be spec compliamnt a separate ConstructStubForDerived is introduced.
Instead of trowing directly, the desugared return statement inside
a derived constructor only returns an integer to indicate an incompatible
result.
R=cbruni@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=v8:4509
LOG=n
Review URL: https://codereview.chromium.org/1595593002
Cr-Commit-Position: refs/heads/master@{#33341}
Port for https://codereview.chromium.org/1593553002/
Original commit message:
When derived constructors return a non-object (or not undefined) we
currently throw an exception directly in the callee context. This was
achieved by desugaring the return statement for derived classes. To
be spec compliamnt a separate ConstructStubForDerived is introduced.
Instead of trowing directly, the desugared return statement inside
a derived constructor only returns an integer to indicate an incompatible
result.
BUG=v8:4509
LOG=n
Review URL: https://codereview.chromium.org/1593603002
Cr-Commit-Position: refs/heads/master@{#33340}
When derived constructors return a non-object (or not undefined) we
currently throw an exception directly in the callee context. This was
achieved by desugaring the return statement for derived classes. To
be spec compliamnt a separate ConstructStubForDerived is introduced.
Instead of trowing directly, the desugared return statement inside
a derived constructor only returns an integer to indicate an incompatible
result.
BUG=v8:4509
LOG=n
Review URL: https://codereview.chromium.org/1593553002
Cr-Commit-Position: refs/heads/master@{#33336}
Adds a ForInPrepare Runtime function which returns a triple of
cache_type, cache_array and cache_length.
This requires adding support to CEntryStub to call runtime functions
which return a ObjectTriple - a struct containing three Object*
pointers. Also did some cleanup of the x64 CEntryStub to avoid
replicated code.
Replaces the interpreter's use of the ad-hock InterpreterForInPrepare
Runtime function with ForInPrepare in preparation for fixing deopt in
BytecodeGraphBuilder for ForIn (which will be done in a followup CL).
MIPS port contributed by Balazs Kilvady <balazs.kilvady@imgtec.com>.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1576093004
Cr-Commit-Position: refs/heads/master@{#33334}
We can return the creation context of the [[BoundTargetFunction]], and
don't need to remember the context in which the function was bound.
R=verwaest@chromium.org
BUG=chromium:535408
LOG=n
Review URL: https://codereview.chromium.org/1590273002
Cr-Commit-Position: refs/heads/master@{#33332}
This refactoring removes the dependency on the Token class from the
assembler.h header file, the utility function in question has nothing
to do with assembling in the first place.
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/1594443003
Cr-Commit-Position: refs/heads/master@{#33330}
That way, we don't have to implement the fast <-> slow migration logic,
and we don't allocate in-object properties anyways
BUG=chromium:571365
R=verwaest@chromium.org,neis@chromium.org
LOG=n
Review URL: https://codereview.chromium.org/1582773003
Cr-Commit-Position: refs/heads/master@{#33328}
Unify Object::ToObject and Execution::ToObject, and unify all users to
go to Object::ToObject directly. Also remove some dead code from the
frame details debug API.
R=yangguo@chromium.org
Review URL: https://codereview.chromium.org/1589323002
Cr-Commit-Position: refs/heads/master@{#33327}
Those counters will be incremented concurrently during parallel evacuation of
newspace. This change makes sure we do the updates atomically.
Note that actual reasoning about them happens sequentially on the main thread.
BUG=chromium:524425
LOG=N
R=ulan@chromium.org
Review URL: https://codereview.chromium.org/1585843010
Cr-Commit-Position: refs/heads/master@{#33326}
This splits out the SourcePosition class into a separate header file.
Reason for this refactoring is that said class is mostly used by the
Crankshaft compiler and not needed for all compilers. Also having the
assembler depend on the class creates a dependency cycle.
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/1581083009
Cr-Commit-Position: refs/heads/master@{#33325}
