- Store std::string instead of std::unique_ptr<char[]> for the error
message.
- Remove ErrorCode, which was just kSuccess and kError anyway. Error is
now detected on whether error_msg_ is empty or not.
- Refactor constructors for perfect forwarding; this will allow us to
implement Result<std::unique_ptr<X*>>.
- Refactor Decoder::toResult for perfect forwarding.
- Remove output operators (operator<<) for Result; it was only used in
the error case anyway. Print error message directly instead.
The operator was problematic since it assumed the existence of an
output operator for every T which is used in Result<T>.
- Remove ModuleError and FunctionError, introduce general static
Result<T>::Error method instead.
R=ahaas@chromium.org
Change-Id: I1e0f602a61ee9780fee2a3ed33147d431fb092ba
Reviewed-on: https://chromium-review.googlesource.com/472748
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44518}
The DCHECK added by https://chromium-review.googlesource.com/461827 was not true
in case we failed to compile the function.
BUG=chromium:708598
Change-Id: I6a542c3ac6281c0549396b4ff0af34ea44450006
Reviewed-on: https://chromium-review.googlesource.com/472826
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44513}
This relands commit d3e9aade0f. The original CL was reverted speculatively but didn't cause the buildbot failure.
Original change's description:
> [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator.
>
> Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi
> literals in the BytecodeGenerator. This enables us to perform the
> transformation for literals on either side for commutative operations, and
> Avoids having to do the check on every bytecode in the peephole optimizer.
>
> In the process, adds Smi bytecode variants for all binary operations, adding
> - MulSmi
> - DivSmi
> - ModSmi
> - BitwiseXorSmi
> - ShiftRightLogical
>
> BUG=v8:6194
>
> Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219
> Reviewed-on: https://chromium-review.googlesource.com/466246
> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#44477}
TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,v8-reviews@googlegroups.com,ishell@chromium.org
# Not skipping CQ checks because original CL landed > 1 day ago.
BUG=v8:6194
Change-Id: I2ccaefa1ce58d3885f5c2648755985c06f25c1d8
Reviewed-on: https://chromium-review.googlesource.com/472746
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44511}
Instead of storing {start} and {error_pc} we now store the
{error_offset}, which is anyways the only value we use.
R=clemensh@chromium.org
Change-Id: Ifd9791eff5c9efce2e7e2a1989bf3b5eaa464a02
Reviewed-on: https://chromium-review.googlesource.com/471527
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44510}
This is inital work in order to utilize CompilerDispatcher in parallel
parsing.
BUG=v8:6093
Change-Id: I6aae4f32ddb2314585d09039c1c5d7e658dc896f
Reviewed-on: https://chromium-review.googlesource.com/469709
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Commit-Queue: Wiktor Garbacz <wiktorg@google.com>
Cr-Commit-Position: refs/heads/master@{#44509}
The spec requires that we use IterableToList, which we skipped for
some arrays as an optimization. We can't skip this for arrays with
objects though, because the objects may mutate the array during
the copying step via valueOf side effects.
Also clean up the implementation to use a runtime function rather
than a builtin as the helper. Also reverses the result of the helper
because I think it is a bit more intuitive that way.
Bug: v8:6224
Change-Id: I9199491abede4479785df6d9068331bc2d6e9c5e
Reviewed-on: https://chromium-review.googlesource.com/471986
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44507}
This revealed a bug in the TypedArray(typedArray) constructor when the arg is backed by a SharedArrayBuffer.
Also install the species getter and add a test, since it's not tested in
test262 presently.
BUG=v8:5983,v8:5984
R=adamk@chromium.org
Review-Url: https://codereview.chromium.org/2798403004
Cr-Commit-Position: refs/heads/master@{#44500}
Includes a drive-by fix to a couple of superficial Intl changes
With this roll, test262 starts to look at test262 feature
flags to determine which harmony flags to turn on. There's
still more to do, including adding feature flags to existing
upstream tests and taking advantage of more flags here.
Change-Id: I9cb813e0450be9dc7769ac9c601092bd3572556f
Reviewed-on: https://chromium-review.googlesource.com/471546
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Daniel Ehrenberg <littledan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44495}
The format of the name section changed recently. It now contains
subsections of different type (currently for function names or local
variable names).
This CL changes our internal wasm module builders (in JS and C++) to
emit this new format, and changes the decoder to understand it.
We currently only parse the function name section, and ignore names of
local variables. I will later extend this to parse local variable names
when needed for debugging.
R=ahaas@chromium.org, rossberg@chromium.org
BUG=v8:6222
Change-Id: I2627160c25c9209a3f09abe0b88941ec48b24434
Reviewed-on: https://chromium-review.googlesource.com/470247
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Rossberg <rossberg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44492}
and out of the main library. This saves about 5% of binary size
(800KB on x64, 373KB on android_arm).
Only the GN build is supported; the GYP build is maintained working
but does not support the feature.
Previously landed as 4782bc0df8 / r44412.
BUG=v8:6055
CQ_INCLUDE_TRYBOTS=master.tryserver.v8:v8_linux_nosnap_rel;
Review-Url: https://codereview.chromium.org/2760233005
Cr-Commit-Position: refs/heads/master@{#44489}
This reverts commit d3e9aade0f.
Reason for revert: Speculative for:
https://build.chromium.org/p/client.v8.ports/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20nosnap%20-%20debug/builds/4449
Bisect points to this CL.
Original change's description:
> [Interpreter] Move BinaryOp Smi transformation into BytecodeGenerator.
>
> Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi
> literals in the BytecodeGenerator. This enables us to perform the
> transformation for literals on either side for commutative operations, and
> Avoids having to do the check on every bytecode in the peephole optimizer.
>
> In the process, adds Smi bytecode variants for all binary operations, adding
> - MulSmi
> - DivSmi
> - ModSmi
> - BitwiseXorSmi
> - ShiftRightLogical
>
> BUG=v8:6194
>
> Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219
> Reviewed-on: https://chromium-review.googlesource.com/466246
> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#44477}
TBR=rmcilroy@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,mythria@chromium.org,ishell@chromium.org,v8-reviews@googlegroups.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:6194
Change-Id: If57dbdbe40be77804bf437463b855d3167e2d473
Reviewed-on: https://chromium-review.googlesource.com/471308
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44488}
The spec requires truncation while ToUint32 originally rounded down.
This also adds a bunch of test cases to check edge case behavior.
BUG=v8:6212
Review-Url: https://codereview.chromium.org/2805783003
Cr-Commit-Position: refs/heads/master@{#44487}
Rather than doing nop elision in the peephole optimizer, be smarter about
emitting nops for elided register transfers in the bytecode optimizer.
BUG=v8:6194
Change-Id: Ib1a7168a0d143e4f2da7c6d43080998793c30822
Reviewed-on: https://chromium-review.googlesource.com/468929
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44479}
Perform the transformation to <BinaryOp>Smi for Binary ops which take Smi
literals in the BytecodeGenerator. This enables us to perform the
transformation for literals on either side for commutative operations, and
Avoids having to do the check on every bytecode in the peephole optimizer.
In the process, adds Smi bytecode variants for all binary operations, adding
- MulSmi
- DivSmi
- ModSmi
- BitwiseXorSmi
- ShiftRightLogical
BUG=v8:6194
Change-Id: If1484252f5385c16957004b9cac8bfbb1f209219
Reviewed-on: https://chromium-review.googlesource.com/466246
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44477}
The WebIDL spec expects iterator objects from interfaces that declare pair
iterators to ultimately inherit from %IteratorPrototype%. Expose the
intrinsic object in the public API so we can use it in Blink's bindings
code.
BUG=chromium:689576
R=caitp@igalia.com,jkummerow@chromium.org,jochen@chromium.org
Review-Url: https://codereview.chromium.org/2784543004
Cr-Commit-Position: refs/heads/master@{#44472}
This gives us more precise type information, so we can avoid some type
guards to refine the type information back.
The motivation for this is to help escape analysis by not introducing
redundant type guards (which escape analysis cannot handle yet even
though it could and should do).
Motivating example:
In the example below, the out-of-object property array for properties
fld5 and fld6 gets type Any when it is created by "o.fld5 = 5" (for
object literals, we store 4 properties in-objeca, the rest goes out
of object).
When we run load elimination for the load the out-of-object property
array (to store 6 into o.fld6), load elimination inserts TypeGuard to
enforce the Type::Internal() type. This makes escape analysis bail out
on this object, and we do not eliminate the object creation.
function f() {
var o = {};
o.fld1 = 1;
o.fld2 = 2;
o.fld3 = 3;
o.fld4 = 4;
o.fld5 = 5;
o.fld6 = 6;
}
f();
f();
%OptimizeFunctionOnNextCall(f);
f();
Review-Url: https://codereview.chromium.org/2797993006
Cr-Commit-Position: refs/heads/master@{#44470}
This ensures that capture names containing surrogate pairs are parsed
correctly even in non-unicode RegExp patterns by introducing a new
scanning mode which unconditionally combines surrogate pairs.
BUG=v8:5437,v8:6192
Review-Url: https://codereview.chromium.org/2791163003
Cr-Commit-Position: refs/heads/master@{#44466}
This fixes behavior for HeapNumber {index} arguments passed to
AdvanceStringIndex.
Previously, we'd blindly treat {index} as a Smi. Passing a HeapNumber instead
would result in a Smi addition on the tagged HeapNumber pointer.
BUG=chromium:709015
Review-Url: https://codereview.chromium.org/2798933003
Cr-Commit-Position: refs/heads/master@{#44458}
This CL fixes two more cases in which a regexp could unintentionally transition
to slow mode while on the fast path, leading to possible OOB accesses of
lastIndex.
In both cases, the fix is to re-check the shape and possibly bail to runtime.
BUG=chromium:708247,v8:6210
Review-Url: https://codereview.chromium.org/2803603005
Cr-Commit-Position: refs/heads/master@{#44451}
To avoid running infinitely or hitting the stack size limit, bound the
number of steps to execute in the interpreter to 16k.
R=ahaas@chromium.org
BUG=chromium:708457
Change-Id: Ib101bbbc06627641dae2fd1cd1a8d950aa504eaf
Reviewed-on: https://chromium-review.googlesource.com/469609
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44446}
Make Ignition collect BinaryOperationFeedback on ToNumber, using the
shared type feedback slot with the following Inc/Dec bytecode, and use
this feedback in TurboFan to turn the ToNumber(x) operation into a
SpeculativeNumberMultiply(x,1) with the feedback hint.
R=jarin@chromium.org, mstarzinger@chromium.org, rmcilroy@chromium.org
BUG=v8:6214,v8:5267
Review-Url: https://codereview.chromium.org/2804813003
Cr-Commit-Position: refs/heads/master@{#44440}
The following aspects were changed for the reland:
* The DeferredHandleScope is supposed with a specific pattern,
i.e. allocate handles in a normal HandleScope and then
reopen them in the DeferredHandleScope.
* Set the native_context when it is used in a task.
Change-Id: Ia42c46ec6bc73179cb1f458e36658414ff85cc23
Reviewed-on: https://chromium-review.googlesource.com/468809
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44434}
Moves the ToName elision out of the peephole optimizer and into the
BytecodeGenerator.
BUG=v8:6194
Change-Id: Ic355adbe21f967dc5d52babdd37100a260c62c26
Reviewed-on: https://chromium-review.googlesource.com/467466
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44427}
Reason for revert:
I think that this CL breaks chromium compilation on windows with clang (). All other CLs in the list looks trivial and don't change test/unittest/BUILD.gn.
[42456/47924] CXX obj/v8/test/unittests/unittests/value-serializer-unittest.obj
[42457/47924] LINK unittests.exe unittests.exe.pdb
FAILED: unittests.exe unittests.exe.pdb
E:/b/depot_tools/python276_bin/python.exe ../../build/toolchain/win/tool_wrapper.py link-wrapper environment.x64 False link.exe /nologo /OUT:./unittests.exe /PDB:./unittests.exe.pdb @./unittests.exe.rsp
bitmap-unittest.obj : error LNK2019: unresolved external symbol "public: void __cdecl v8::internal::List<class v8::internal::AllocationObserver *,class v8::internal::FreeStoreAllocationPolicy>::Add(class v8::internal::AllocationObserver * const &,class v8::internal::FreeStoreAllocationPolicy)" (?Add@?$List@PEAVAllocationObserver@internal@v8@@VFreeStoreAllocationPolicy@23@@internal@v8@@QEAAXAEBQEAVAllocationObserver@23@VFreeStoreAllocationPolicy@23@@Z) referenced in function "public: virtual void __cdecl v8::internal::Space::AddAllocationObserver(class v8::internal::AllocationObserver *)" (?AddAllocationObserver@Space@internal@v8@@UEAAXPEAVAllocationObserver@23@@Z)
slot-set-unittest.obj : error LNK2001: unresolved external symbol "public: void __cdecl v8::internal::List<class v8::internal::AllocationObserver *,class v8::internal::FreeStoreAllocationPolicy>::Add(class v8::internal::AllocationObserver * const &,class v8::internal::FreeStoreAllocationPolicy)" (?Add@?$List@PEAVAllocationObserver@internal@v8@@VFreeStoreAllocationPolicy@23@@internal@v8@@QEAAXAEBQEAVAllocationObserver@23@VFreeStoreAllocationPolicy@23@@Z)
bitmap-unittest.obj : error LNK2019: unresolved external symbol "public: bool __cdecl v8::internal::List<class v8::internal::AllocationObserver *,class v8::internal::FreeStoreAllocationPolicy>::RemoveElement(class v8::internal::AllocationObserver * const &)" (?RemoveElement@?$List@PEAVAllocationObserver@internal@v8@@VFreeStoreAllocationPolicy@23@@internal@v8@@QEAA_NAEBQEAVAllocationObserver@23@@Z) referenced in function "public: virtual void __cdecl v8::internal::Space::RemoveAllocationObserver(class v8::internal::AllocationObserver *)" (?RemoveAllocationObserver@Space@internal@v8@@UEAAXPEAVAllocationObserver@23@@Z)
slot-set-unittest.obj : error LNK2001: unresolved external symbol "public: bool __cdecl v8::internal::List<class v8::internal::AllocationObserver *,class v8::internal::FreeStoreAllocationPolicy>::RemoveElement(class v8::internal::AllocationObserver * const &)" (?RemoveElement@?$List@PEAVAllocationObserver@internal@v8@@VFreeStoreAllocationPolicy@23@@internal@v8@@QEAA_NAEBQEAVAllocationObserver@23@@Z)
./unittests.exe : fatal error LNK1120: 2 unresolved externals
Original issue's description:
> [snapshot] Move builtins generation into mksnapshot
>
> and out of the main library. This saves about 5% of binary size
> (800KB on x64, 373KB on android_arm).
>
> Only the GN build is supported; the GYP build is maintained working
> but does not support the feature.
>
> BUG=v8:6055
> CQ_INCLUDE_TRYBOTS=master.tryserver.v8:v8_linux_nosnap_rel;
>
> Review-Url: https://codereview.chromium.org/2760233005
> Cr-Commit-Position: refs/heads/master@{#44412}
> Committed: 4782bc0df8TBR=jgruber@chromium.org,rmcilroy@chromium.org,machenbach@chromium.org,jkummerow@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:6055
Review-Url: https://codereview.chromium.org/2803903002
Cr-Commit-Position: refs/heads/master@{#44422}
What will we get:
- console would be included into snapshot and allow us to reduce time that we spent in contextCreated function (~5 times faster),
- it allows us to make further small improvement of console methods, e.g. we can implement super quick return from console.assert if first argument is true,
- console calls are ~ 15% faster.
BUG=v8:6175
R=dgozman@chromium.org
Review-Url: https://codereview.chromium.org/2785293002
Cr-Original-Original-Commit-Position: refs/heads/master@{#44353}
Committed: 55905f85d6
Review-Url: https://codereview.chromium.org/2785293002
Cr-Original-Commit-Position: refs/heads/master@{#44355}
Committed: cc74ea0bc4
Review-Url: https://codereview.chromium.org/2785293002
Cr-Commit-Position: refs/heads/master@{#44416}
Move the ToBoolean elision in the BytecodeGenerator instead of the
peephole optimizer. Adds a TypeHint mechanism to the ExpressionResult
to enable passing of type hints through the ast visitor.
BUG=v8:6194
Change-Id: Ic55506ba11b213f7459250004d3f18cab04ee9b3
Reviewed-on: https://chromium-review.googlesource.com/467208
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44415}
This fixes a corner case which allowed warnings during the asm.js
instantiation to be promoted to actual exceptions. Even instantiation
attempts that fail are not allowed to throw exceptions observable by
JavaScript, but need to fall back to JavaScript execution.
R=clemensh@chromium.org
TEST=mjsunit/regress/regress-6203
BUG=v8:6203
Change-Id: I86f5a3adda4bcfe63b5cddc42d8ae1c3dbb88147
Reviewed-on: https://chromium-review.googlesource.com/468808
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44414}
and out of the main library. This saves about 5% of binary size
(800KB on x64, 373KB on android_arm).
Only the GN build is supported; the GYP build is maintained working
but does not support the feature.
BUG=v8:6055
CQ_INCLUDE_TRYBOTS=master.tryserver.v8:v8_linux_nosnap_rel;
Review-Url: https://codereview.chromium.org/2760233005
Cr-Commit-Position: refs/heads/master@{#44412}
This extends the test coverage for source position tracking of ToNumber
conversion to also test conversion to "double" type. It also fixes the
discovered inconsistencies. Note that the conversion to "float" remains
untested as imported functions are not allowed have "float" return type.
R=clemensh@chromium.org
TEST=mjsunit/wasm/asm-wasm-exception-in-tonumber
BUG=v8:6127
Change-Id: I6c59b7a24456a585a814f19a86eb9447ac5098ab
Reviewed-on: https://chromium-review.googlesource.com/467251
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44409}
In the C++ wasm interpreter, we decode LEB encoded immediates each time
we execute the respective instruction. The whole instruction sequence
was validated before, thus we know that all integers are valid.
This CL refactors several Decoder methods to allow for either checked
or unchecked decoding. In the checked case, an error is set if a check
fails, in the unchecked case, a DCHECK will fail.
This improves performance of the interpreter by 20.5%.
R=ahaas@chromium.org
BUG=v8:5822
Change-Id: If69efd4f6fbe19d84bfc2f4aa000f429a8e22bf5
Reviewed-on: https://chromium-review.googlesource.com/468786
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44406}
Both methods decoded a LEB128 encoded integer, but only consume_leb
incremented the pc pointer accordingly.
This CL implements consume_leb by using checked_read_leb.
It also refactors a few things:
1) It removes error_pt, which was only avaible in checked_read_leb.
2) It renames the error method to errorf, since it receives a format
string. This also avoids a name clash.
3) It implements sign extension directly in checked_read_leb instead of
doing this in the caller.
R=ahaas@chromium.org
BUG=v8:5822
Change-Id: I8058f57418493861e5df26d4949041f6766d5138
Reviewed-on: https://chromium-review.googlesource.com/467150
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44405}
