R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1868553003

Cr-Commit-Position: refs/heads/master@{#35323}

Nothing too important, but it helps localizing the cause of an error
much faster.
By the way, I also changed the output for assertThrows and
assertDoesNotThrow a bit.
All new arguments are optional, so everything is backwards compatible.

R=jfb@chromium.org, titzer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1866693002

Cr-Commit-Position: refs/heads/master@{#35322}

Crashes flakily with stressopt/alwaysopt.

BUG=v8:4893
LOG=n
TBR=yangguo@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1863393002

Cr-Commit-Position: refs/heads/master@{#35321}

BUG=

Review URL: https://codereview.chromium.org/1857193002

Cr-Commit-Position: refs/heads/master@{#35320}

Revert of [heap] Respect idle deadline in AdvanceIncrementalMarking more carefully. (patchset #4 id:60001 of https://codereview.chromium.org/1855943002/ )

Reason for revert:
Reverting because of https://bugs.chromium.org/p/chromium/issues/detail?id=601204

Original issue's description:
> [heap] Respect idle deadline in AdvanceIncrementalMarking more carefully.
>
> Committed: https://crrev.com/0eb53167f492a44d26b68c2197e37452f70c3a4f
> Cr-Commit-Position: refs/heads/master@{#35288}

TBR=ulan@chromium.org,hpayer@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/1870613002

Cr-Commit-Position: refs/heads/master@{#35319}

We have to preserve control flow so that the liveness analysis is less
confused. This CL fixes loops to preserve teh original control flow.

BUG=chromium:599710
LOG=n

Review URL: https://codereview.chromium.org/1863123002

Cr-Commit-Position: refs/heads/master@{#35318}

Rolling v8/tools/clang to f9d7a272792022ffdfc9bd2cd0c901b824baf029

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

Review URL: https://codereview.chromium.org/1868873003

Cr-Commit-Position: refs/heads/master@{#35317}

Port 974721c6

Original commit message:
    Introduce a ResumeGeneratorTrampoline, which does the actual stack state
    reconstruction (currently always restores a fullcodegen frame), and
    introduce appropriate TurboFan builtins for %GeneratorPrototype%.next,
    %GeneratorPrototype%.return and %GeneratorPrototype%.throw based on
    this native builtin.

    Also unify the flooding in case of step-in to always work based on
    JSFunction and remove the special casing for JSGeneratorObject.

R=bmeurer@chromium.org, joransiu@ca.ibm.com, mbrandy@us.ibm.com, michael_dawson@ca.ibm.com, bjaideep@ca.ibm.com
BUG=chromium:513471
LOG=n

Review URL: https://codereview.chromium.org/1870483002

Cr-Commit-Position: refs/heads/master@{#35316}

This reduced fragmentation in spaces where black pages are not a requirement. The only spaces where we need black pages is old space, because of allocation folding and fast inline allocation in generated code.

BUG=chromium:599174
LOG=n

Review URL: https://codereview.chromium.org/1862063002

Cr-Commit-Position: refs/heads/master@{#35315}

Port 974721c6

Original commit message:
    Introduce a ResumeGeneratorTrampoline, which does the actual stack state
    reconstruction (currently always restores a fullcodegen frame), and
    introduce appropriate TurboFan builtins for %GeneratorPrototype%.next,
    %GeneratorPrototype%.return and %GeneratorPrototype%.throw based on
    this native builtin.

    Also unify the flooding in case of step-in to always work based on
    JSFunction and remove the special casing for JSGeneratorObject.

R=bmeurer@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, bjaideep@ca.ibm.com
BUG=chromium:513471
LOG=n

Review URL: https://codereview.chromium.org/1868683002

Cr-Commit-Position: refs/heads/master@{#35314}

This removes an unnecessary abstraction from the implementation of the
compilation pipeline that is no longer needed by now.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1868553002

Cr-Commit-Position: refs/heads/master@{#35313}

This field duplicates information from the SharedFunctionInfo. Now that
backends are guaranteed to have a SharedFunctionInfo around, we drop it.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/1860123003

Cr-Commit-Position: refs/heads/master@{#35312}

V8_HOST_ARCH_S390X doesn't exist but is incorrectly used. Therefore, preserved floating point registers are not being correctly saved/restored in JSEntryStub.

R=joransiu@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1865893002

Cr-Commit-Position: refs/heads/master@{#35311}

Debug asserts in code-generator-s390.cc are in place to ensure that overflow is only set when dealing with a sub or add opcode. However, the check only looked for kS390_Add/SubWithOverflow32, not kS390_Add/Sub which also sets overflow. This CL adds the second case to this assert check.

R=michael_dawson@ca.ibm.com,jyan@ca.ibm.com,mtbrandyberry@ca.ibm.com,joransiu@ca.ibm.com

BUG=

Review URL: https://codereview.chromium.org/1863983003

Cr-Commit-Position: refs/heads/master@{#35310}

BUG=

Review URL: https://codereview.chromium.org/1859143002

Cr-Commit-Position: refs/heads/master@{#35309}

All the counters, trace events and runtime call stats roughly create a 30%
overhead when calling into the runtime. This CL factors out the counters into
separate non-inlined functions. This way we can reduce the overhead to a
minimum and still have some useful stats without a compile-time flag.

BUG=chromium:596055
LOG=n

Review URL: https://codereview.chromium.org/1868513002

Cr-Commit-Position: refs/heads/master@{#35308}

Implementation of turbofan operators Word32PairShl, Word32PairShr,
Word32PairSar, Int32AddPair and Int32SubPair for MIPS.

Port of:
https://codereview.chromium.org/1765973002/
https://codereview.chromium.org/1778893004/
https://codereview.chromium.org/1778493004/
https://codereview.chromium.org/1778893005/
https://codereview.chromium.org/1842013002/

Added tests for Word32PairShr and Word32PairSar in test-run-machops.cc.

BUG=

Review URL: https://codereview.chromium.org/1819383002

Cr-Commit-Position: refs/heads/master@{#35307}

BUG=

Review URL: https://codereview.chromium.org/1861963003

Cr-Commit-Position: refs/heads/master@{#35306}

If no objects allocated at a location are live when a profile is
collected we report a zero count sample. This is confusing to those
looking at the profiles and will leak memory.

We now delete allocations once the number of sampled live objects for
that location reaches zero.

R=ofrobots@google.com
BUG=

Review URL: https://codereview.chromium.org/1828333002

Cr-Commit-Position: refs/heads/master@{#35305}

BUG=535160
TBR=sergiyb@chromium.org, kjellander@chromium.org
NOTRY=true
NOPRESUBMIT=true

Review URL: https://codereview.chromium.org/1864963003

Cr-Commit-Position: refs/heads/master@{#35304}

BUG=

NOTRY=true
NOPRESUBMIT=true
NOTREECHECKS=true

Review URL: https://codereview.chromium.org/1865903002

Cr-Commit-Position: refs/heads/master@{#35303}

drive-by-fix: unify template parameters

BUG=chromium:586068
LOG=n

Review URL: https://codereview.chromium.org/1857163002

Cr-Commit-Position: refs/heads/master@{#35302}

BUG=

Review URL: https://codereview.chromium.org/1865873002

Cr-Commit-Position: refs/heads/master@{#35301}

BUG=

Review URL: https://codereview.chromium.org/1834613003

Cr-Commit-Position: refs/heads/master@{#35300}

BUG=

Review URL: https://codereview.chromium.org/1853373004

Cr-Commit-Position: refs/heads/master@{#35299}

An overzealous removal in
https://crrev.com/9e39a9fff1c2966a3f650a4c31dbbe533886d614
caused the disassembly not to be annotated with ticks, even when
requested.

LOG=N

Review URL: https://codereview.chromium.org/1861323002

Cr-Commit-Position: refs/heads/master@{#35298}

BUG=

Review URL: https://codereview.chromium.org/1865863003

Cr-Commit-Position: refs/heads/master@{#35297}

BUG=chromium:600258
LOG=n

Review URL: https://codereview.chromium.org/1864433003

Cr-Commit-Position: refs/heads/master@{#35296}

Now that we pass all these tests, we need to update the test
expectations.

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1864013002

Cr-Commit-Position: refs/heads/master@{#35295}

- MemoryAllocator is now part of Heap
- CodeRange is now part of MemoryAllocator

BUG=chromium:581076
LOG=N

Review URL: https://codereview.chromium.org/1862653002

Cr-Commit-Position: refs/heads/master@{#35294}

This particularly changes the StackTraceFrameIterator such that is not
only returs JavaScriptFrames, but also WasmFrames. Because of that,
some methods (Summarize, function, receiver) were pulled up to the
StandardFrame, with specializations in JavaScriptFrame and WasmFrame.

R=jfb@chromium.org, titzer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1861283002

Cr-Commit-Position: refs/heads/master@{#35293}

BUG=

Review URL: https://codereview.chromium.org/1862993002

Cr-Commit-Position: refs/heads/master@{#35292}

The previous code cache system required stubs to be marked with a StubType, causing them to be inserted either into a fixed array or into a dictionary-mode code cache. This could cause names to be in both cases, and lookup would just find the "fast" one first. Given that we clear out the caches on each GC, the memory overhead shouldn't be too bad. Additionally, the dictionary itself should just stay linear for small arrays; that's faster anyway.

This CL additionally deletes some dead IC code.

BUG=

Review URL: https://codereview.chromium.org/1846963002

Cr-Commit-Position: refs/heads/master@{#35291}

R=ahaas@chromium.org, titzer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1861293002

Cr-Commit-Position: refs/heads/master@{#35290}

1) I moved the implementations of the wrapper functions into a new cc
file so that I can use these wrapper functions in tests.

2) I made a generic test for all tests in
test-run-calls-to-external-references.cc. In the new test we only
compare the result of a function call through an external reference with
the result of a direct function call. This is sufficient because we only
want to test function calls through external references work here.
The implementation of these functions are tested somewhere else.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1853123002

Cr-Commit-Position: refs/heads/master@{#35289}

Review URL: https://codereview.chromium.org/1855943002

Cr-Commit-Position: refs/heads/master@{#35288}

Adds a MultiplyStub for the multiplication operator and hooks it with TurboFan and Ignition.

Currently, the SMI times SMI case is handled by converting both the operands to double precision floating points, we may consider adding a fast path later.

Review URL: https://codereview.chromium.org/1860043002

Cr-Commit-Position: refs/heads/master@{#35287}

R=ahaas@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1860103002

Cr-Commit-Position: refs/heads/master@{#35286}

SingletonFor(type, state) returns NULL and does nothing whenever SingletonFor(type) also return NULL. So checking this beforehand is redundant.

This is my first CL, so I also use it to get familiar with the system.

R=titzer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1862753003

Cr-Commit-Position: refs/heads/master@{#35285}

BUG=

Review URL: https://codereview.chromium.org/1864953003

Cr-Commit-Position: refs/heads/master@{#35284}