x86 automatically truncates the shift amount to be 5-bits. But not
all architectures do that.

R=rossberg@chromium.org, jarin@chromium.org, joransiu@ca.ibm.com, bjaideep@ca.ibm.com
BUG=

Review-Url: https://codereview.chromium.org/2616743002
Cr-Commit-Position: refs/heads/master@{#42099}

R=rmcilroy@chromium.org
BUG=v8:5799

Review-Url: https://codereview.chromium.org/2612903002
Cr-Commit-Position: refs/heads/master@{#42098}

R=littledan@chromium.org
BUG=v8:5367

Review-Url: https://codereview.chromium.org/2611063002
Cr-Commit-Position: refs/heads/master@{#42097}

R=bmeurer@chromium.org
BUG=v8:5657

Review-Url: https://codereview.chromium.org/2609863006
Cr-Commit-Position: refs/heads/master@{#42096}

TBR=machenbach@chromium.org
BUG=5803

Review-Url: https://codereview.chromium.org/2611143002
Cr-Commit-Position: refs/heads/master@{#42095}

BUG=None

Review-Url: https://codereview.chromium.org/2609173005
Cr-Commit-Position: refs/heads/master@{#42094}

R=machenbach@chromium.org
BUG=chromium:645890

Review-Url: https://codereview.chromium.org/2614983002
Cr-Commit-Position: refs/heads/master@{#42093}

Revert of [turbofan] Improve codegen for 8- and 16-bit memory comparisons on Intel platforms (patchset #3 id:40001 of https://codereview.chromium.org/2605863002/ )

Reason for revert:
Breaks wasm benchmark (http://crbug.com/v8/5798).

Original issue's description:
> [turbofan] Improve codegen for 8- and 16-bit memory comparisons on Intel platforms
>
> Recognize and emit in-memory comparisons of 8-bit and 16-bit values with
> immediate values that fit.
>
> LOG=N
> R=epertoso@chromium.org
>
> Review-Url: https://codereview.chromium.org/2605863002
> Cr-Commit-Position: refs/heads/master@{#41971}
> Committed: https://chromium.googlesource.com/v8/v8/+/be11812c53ff6c8ce320887bc76a3b60d8103695

TBR=danno@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.

Review-Url: https://codereview.chromium.org/2618443003
Cr-Commit-Position: refs/heads/master@{#42092}

BUG=v8:5215
R=vogelheim@chromium.org,marja@chromium.org

Review-Url: https://codereview.chromium.org/2618503002
Cr-Commit-Position: refs/heads/master@{#42091}

This turns hangs on win_dbg into actually crashes

R=machenbach@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2613033002
Cr-Commit-Position: refs/heads/master@{#42090}

The destructors of the parse info, compile info, and compilation job
might still access the zone

BUG=none
R=machenbach@chromium.org

Review-Url: https://codereview.chromium.org/2616883003
Cr-Commit-Position: refs/heads/master@{#42089}

Add a more efficient encoding for state values that have a large number of
optimized-out inputs.

Review-Url: https://codereview.chromium.org/2509623002
Cr-Commit-Position: refs/heads/master@{#42088}

This makes the context allocation less pessimistic in case of name
clash.

This is also required for being able to skip inner functions.

BUG=v8:5501, v8:5516

Review-Url: https://codereview.chromium.org/2610823003
Cr-Commit-Position: refs/heads/master@{#42087}

We can't have "main" in a static library. so just include the small
fuzzer.cc in all simple fuzzers

BUG=none
R=machenbach@chromium.org,vogelheim@chromium.org

Review-Url: https://codereview.chromium.org/2608243005
Cr-Commit-Position: refs/heads/master@{#42086}

We need to check both sides for abstract equality of receivers in optimized
code, otherwise we don't handle implicit conversions and undetectable
objects correctly.

R=jarin@chromium.org
BUG=v8:5802

Review-Url: https://codereview.chromium.org/2612213002
Cr-Commit-Position: refs/heads/master@{#42085}

BUG=v8:5215
R=marja@chromium.org,vogelheim@chromium.org

Review-Url: https://codereview.chromium.org/2608163006
Cr-Commit-Position: refs/heads/master@{#42084}

BUG=

Review-Url: https://codereview.chromium.org/2613723002
Cr-Commit-Position: refs/heads/master@{#42083}

Add a feedback vector slot for computed property names in object
and class literals. Introduce new slot kind for storing
computed property names.

Change StaDataPropertyInLiteral to use the accumulator (again), so
we don't exceed Bytecodes::kMaxOperands.

We assume that most computed property names are
symbols. Therefore we should see performance
improvements, even if we deal with monomorphic ICs only.

This CL only collects feedback but does not use
it in Reduce() yet.

BUG=v8:5624

Review-Url: https://codereview.chromium.org/2587393006
Cr-Commit-Position: refs/heads/master@{#42082}

  port 72c37076(r42034)

  original commit message:
  Currently the CompileLazy builtin checks the SFI expliciltly for FCG code. This means
  if the SFI has bytecode we have to go through to the runtime to install the
  interpreter entry trampoline into the JSFunction object.

  Modify the builtin to always put the SFI code object into the JSFunction unless it's
  the lazy compile stub on the SFI as well.

BUG=

Review-Url: https://codereview.chromium.org/2614533003
Cr-Commit-Position: refs/heads/master@{#42081}

  port d3ed71ed(r42021)

  original commit message:
  Don't fallback to the %StrictEqual / %Equal runtime functions for the
  generic CompareIC slow path, but use the (new) StrictEqual and Equal
  builtins instead. This avoids a performance cliff when mixing input
  types for strict equality sites.

BUG=

Review-Url: https://codereview.chromium.org/2612693002
Cr-Commit-Position: refs/heads/master@{#42080}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/dd74acb..9cde9c9

Rolling v8/third_party/catapult: https://chromium.googlesource.com/external/github.com/catapult-project/catapult/+log/a067dd2..9e6944a

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/432074b..0ec6dce

TBR=machenbach@chromium.org,vogelheim@chromium.org,hablich@chromium.org

Review-Url: https://codereview.chromium.org/2617683002
Cr-Commit-Position: refs/heads/master@{#42079}

For benchmarks with multiple measurements (e.g. runtime, compile
time, generated code size), in case of error, we'd get only the
last portion of the name ("Compile"), which is ambiguous and makes
debugging dificult. This change includes the full name, e.g.
"Unity/Physics/Compile".

BUG=

Review-Url: https://codereview.chromium.org/2615623003
Cr-Commit-Position: refs/heads/master@{#42078}

R=joransiu@ca.ibm.com, bjaideep@ca.ibm.com
BUG=

Review-Url: https://codereview.chromium.org/2615683003
Cr-Commit-Position: refs/heads/master@{#42077}

This lets us share Builtins::kReturnReceiver, so should
every-so-slightly reduce the size of the context snapshot.

R=gsathya@chromium.org

Review-Url: https://codereview.chromium.org/2614623003
Cr-Commit-Position: refs/heads/master@{#42076}

Add a more low level BranchIfFastPath to take the native_context and
promise_fun as args and change the existing one to use this.

BUG=v8:5343

Review-Url: https://codereview.chromium.org/2592933004
Cr-Commit-Position: refs/heads/master@{#42075}

R=gsathya@chromium.org

Review-Url: https://codereview.chromium.org/2615733002
Cr-Commit-Position: refs/heads/master@{#42074}

BUG=v8:5343

Review-Url: https://codereview.chromium.org/2614603003
Cr-Commit-Position: refs/heads/master@{#42073}

This moves the initialization of [[HomeObject]] for constructors from
the %DefineClass runtime function into the bytecode generator, and
makes it conditional (resolving an old TODO). As part of this refactor,
avoid a load of "prototype" by returning the class prototype from
%DefineClass.

This is one of many steps in moving more of class definition into
bytecode.

R=rmcilroy@chromium.org

Review-Url: https://codereview.chromium.org/2610683003
Cr-Commit-Position: refs/heads/master@{#42072}

Remove a bunch of unnecessary v8:: prefixes in include/v8.h.
Some are still necessary for disambiguation purposes (e.g., between
bool Value() and v8::Value, or between v8::Isolate and
v8::internal::Isolate), but many aren't.

BUG=None

Review-Url: https://codereview.chromium.org/2605103003
Cr-Commit-Position: refs/heads/master@{#42071}

This removes all the promise allocation related methods from the CSA
and moves them PromiseBuiltinsAssembler with some edits.

BUG=v8:5343

Review-Url: https://codereview.chromium.org/2604273003
Cr-Commit-Position: refs/heads/master@{#42070}

R=adamk@chromium.org, littledan@chromium.org

BUG=v8:5343

Review-Url: https://codereview.chromium.org/2609853004
Cr-Commit-Position: refs/heads/master@{#42069}

BUG=v8:5215
R=marja@chromium.org,vogelheim@chromium.org

Review-Url: https://codereview.chromium.org/2615603002
Cr-Commit-Position: refs/heads/master@{#42068}

Ignition does not emit any byte code for some literal expression
statements, so avoid testing for it.

R=rmcilroy@chromium.org
BUG=v8:5757

Review-Url: https://codereview.chromium.org/2612013002
Cr-Commit-Position: refs/heads/master@{#42067}

R=bmeurer@chromium.org
BUG=chromium:677757

Review-Url: https://codereview.chromium.org/2606383005
Cr-Commit-Position: refs/heads/master@{#42066}

It's unnecessarily to first lookup and then insert.

BUG=v8:5501

Review-Url: https://codereview.chromium.org/2608333003
Cr-Commit-Position: refs/heads/master@{#42065}

BUG=chromium:670981
LOG=N
R=ishell@chromium.org

Review-Url: https://codereview.chromium.org/2609973002
Cr-Commit-Position: refs/heads/master@{#42064}

Recognize the special

  NumberFloor(NumberDivide(lhs, rhs))

subgraph in TypedOptimization, where both lhs and rhs are in the
Unsigned32 range, and the result is a PlainNumber, and replace the
NumberFloor with a NumberToUint32 truncation.

This could be done in a cleaner way if we have a dedicated type for all
double values in the Unsigned32 range, but that would complicate the
type system quite a bit.

R=jarin@chromium.org
BUG=v8:5267

Review-Url: https://codereview.chromium.org/2614663002
Cr-Commit-Position: refs/heads/master@{#42063}

BUG=v8:5215
R=marja@chromium.org,vogelheim@chromium.org

Review-Url: https://codereview.chromium.org/2612753002
Cr-Commit-Position: refs/heads/master@{#42062}

mjsunit/big-object-literal will exhaust the stack in debug builds,
due to different compiler settings. It will work in optdebug.
This disables for both. Adding an 'optdebug' test to .status files
is easy, but I don't want to contribute to the 'mode x variant explosion'.

R=jochen@chromium.org
CC=franzih@chromium.org, machenbach@chromium.org

Review-Url: https://codereview.chromium.org/2609193002
Cr-Commit-Position: refs/heads/master@{#42061}

BUG=v8:5267
R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2612763002
Cr-Commit-Position: refs/heads/master@{#42060}