On 32-bit systems I64XConvertFXX instructions are compiled to calls to
C functions. The TF node for the function call is already generated in
the wasm compiler, the lowering of the I64 parameter is done in the
Int64Lowering. We use the return value of the C function to determine
whether the conversion should trap or not.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1775903002

Cr-Commit-Position: refs/heads/master@{#34738}

Accidentally introduced in:
https://crrev.com/da632baac7e28d370d9893676c8d1d3e901a4400
crrev.com/1652963004

BUG= https://code.google.com/p/v8/issues/detail?id=4203
BUG=427616
TEST=test-asm-validator
R=brucedawson@chromium.org,aseemgarg@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/1795993002

Cr-Commit-Position: refs/heads/master@{#34737}

BUG=chromium:582702
LOG=N

Review URL: https://codereview.chromium.org/1781393002

Cr-Commit-Position: refs/heads/master@{#34736}

Rolling v8/tools/clang to 1e45fb0482b997a87bff1d5edfeac5b2c5458943

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

Review URL: https://codereview.chromium.org/1796443002

Cr-Commit-Position: refs/heads/master@{#34735}

Rolling v8/buildtools to 7274f1c726640bce4cd4c4198e1ee62a0b29bb89

Rolling v8/third_party/icu to 6d3b55dfa17d9a597c064eeef7ceac18c73184b7

Rolling v8/tools/clang to ec17c92cc70fcd8f5f39eaa17f3dbbd99e29c1f9

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

Review URL: https://codereview.chromium.org/1781313004

Cr-Commit-Position: refs/heads/master@{#34734}

This patch removes some [PASS, FAIL_OK] lines which consistently pass,
and it declares some tests to be test bugs as appropriate.

R=adamk

Review URL: https://codereview.chromium.org/1784063002

Cr-Commit-Position: refs/heads/master@{#34733}

ES2015 Object.prototype.toString semantics were enabled in version 4.9,
which has been in stable Chrome for nearly two weeks at this point.

R=littledan@chromium.org

Review URL: https://codereview.chromium.org/1784033002

Cr-Commit-Position: refs/heads/master@{#34732}

Port 21b331e3

BUG=

Review URL: https://codereview.chromium.org/1784353003

Cr-Commit-Position: refs/heads/master@{#34731}

R=bradnelson@chromium.org,binji@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1787733002

Cr-Commit-Position: refs/heads/master@{#34730}

The code actually setting this flag has already been removed. This CL merely
removes dead code.

BUG=

Review URL: https://codereview.chromium.org/1788753002

Cr-Commit-Position: refs/heads/master@{#34729}

This is a fix that removes a left over from
  https://crrev.com/4566531c6e593ae8bffc2ef96f82c91d15a68acf

With this flag set to false still present, we would race on inserting in the
local old-to-new remembered set.

R=ulan@chormium.org
BUG=chromium:524425
LOG=N

Review URL: https://codereview.chromium.org/1783283003

Cr-Commit-Position: refs/heads/master@{#34728}

Just disable optimization, like we used to.
This undoes a part of r34396's changes in behavior.

BUG=chromium:593094
LOG=n
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/1785183003

Cr-Commit-Position: refs/heads/master@{#34727}

BUG=chromium:561449
LOG=n
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/1790433005 .

Cr-Commit-Position: refs/heads/master@{#34726}

Post-mortem metadata generation broke as a result of
https://codereview.chromium.org/1696043002

BUG=

Review URL: https://codereview.chromium.org/1780933004

Cr-Commit-Position: refs/heads/master@{#34725}

GCC on S390 31-bit treats size_t as 'long unsigned int', which
is incompatible with %d format specifier that expects an 'int'.
Introduce a new V8 SIZET PREFIX to use %zd instead.

R=danno@chromium.org,jkummerow@chromium.org,jochen@chromium.org,jyan@ca.ibm.com,michael_dawson@ca.ibm.com,mbrandy@us.ibm.com,yangguo@chromium.org

BUG=

Review URL: https://codereview.chromium.org/1782293002

Cr-Commit-Position: refs/heads/master@{#34724}

Updates cctest.status and also updates the test
cctest/test-serialize/SerializeInternalReference to return success when
FLAG_ignition is true. This test tests for internal references and is not
relevant for interpreter.

BUG=v8:4280,v8:4680
LOG=N

Review URL: https://codereview.chromium.org/1782893002

Cr-Commit-Position: refs/heads/master@{#34723}

BUG=chromium:561449
LOG=n

Review URL: https://codereview.chromium.org/1783313003

Cr-Commit-Position: refs/heads/master@{#34722}

R=ahaas@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1779713007

Cr-Commit-Position: refs/heads/master@{#34721}

R=rossberg
BUG=

Review URL: https://codereview.chromium.org/1784203003

Cr-Commit-Position: refs/heads/master@{#34720}

BUG=chromium:593867
LOG=y

Review URL: https://codereview.chromium.org/1783343002

Cr-Commit-Position: refs/heads/master@{#34719}

These checks can fail if there bottommost function is a tail caller and the next function has different number of arguments than the bottommost one.

BUG=chromium:593697,v8:4698
LOG=N

Review URL: https://codereview.chromium.org/1785253003

Cr-Commit-Position: refs/heads/master@{#34718}

FullCodegen generates 2 statement positions for the loop init block, like so:

  for(var i = 0; i....
      ^   ^

This change removes the first of those, updates unit tests,
and removes text expectations for Ignition.

---
An alternative would be to emulate the existing behaviour in Ignition, but:
- The new behaviour seems more logical,
- Ignition generates no bytecodes for the 'var', meaning there is no code position to attach the break position to.

BUG=v8:4690
LOG=Y

Review URL: https://codereview.chromium.org/1784883002

Cr-Commit-Position: refs/heads/master@{#34717}

BUG=chromium:593697,v8:4698
LOG=N

Review URL: https://codereview.chromium.org/1781303002

Cr-Commit-Position: refs/heads/master@{#34716}

This converts another test case that is expected to throw a TypeError
but no SyntaxError to have better test coverage (exact message is being
checked now).

R=machenbach@chromium.org
TEST=message,preparser

Review URL: https://codereview.chromium.org/1786623002

Cr-Commit-Position: refs/heads/master@{#34715}

Revert of [platform] Change default platform max thread pool size 4 -> 8 (patchset #1 id:1 of https://codereview.chromium.org/1782833006/ )

Reason for revert:
Seems to trigger bugs, needs investigation.

Original issue's description:
> [platform] Change default platform max thread pool size 4 -> 8
>
> BUG=
>
> Committed: https://crrev.com/ddc0f9982057e76dd4dc35b6ca80d2322adc9141
> Cr-Commit-Position: refs/heads/master@{#34711}

TBR=hpayer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1780353003

Cr-Commit-Position: refs/heads/master@{#34714}

This converts existing "preparser" tests that expect a certain exception
message to be produced into "message" tests. Thereby we get much better
coverage because the former test suite degraded by now to just check
whether each test case threw or not, the exception message was not being
checked at all.

This also deprecates the ability of "preparser" to specify that single
test cases based on JS files are expected to throw, "messages" is far
superior, use that test suite instead.

R=machenbach@chromium.org
TEST=message,preparser

Review URL: https://codereview.chromium.org/1784013003

Cr-Commit-Position: refs/heads/master@{#34713}

BUG=chromium:578883
LOG=NO

Review URL: https://codereview.chromium.org/1784643010

Cr-Commit-Position: refs/heads/master@{#34712}

BUG=

Review URL: https://codereview.chromium.org/1782833006

Cr-Commit-Position: refs/heads/master@{#34711}

After histrogram timer added time recaling functionality,
some events, e.g. parse, histogram timer generates event log ending with 'MicroSeconds'.

Since ProfViz can't recorgnize it, this patch cuts off 'MicroSeconds' postfix.

R=vogelheim@chromium.org, yangguo@chromium.org
BUG=chromium:
LOG=N

Review URL: https://codereview.chromium.org/1771293002

Cr-Commit-Position: refs/heads/master@{#34710}

Review URL: https://codereview.chromium.org/1777013004

Cr-Commit-Position: refs/heads/master@{#34709}

This also runs the message test suite against Ignition. By now most of
the source positions (and exception messages) are accurate, the failing
ones have been blacklisted.

R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1783773003

Cr-Commit-Position: refs/heads/master@{#34708}

Avoid creating and initializing timer scopes for builtins as well.

BUG=chromium:589679
LOG=N

Review URL: https://codereview.chromium.org/1784833002

Cr-Commit-Position: refs/heads/master@{#34707}

Revert of Replace PushIfAbsent by a Stack object and move StringBuilderJoin to JS (patchset #6 id:100001 of https://codereview.chromium.org/1775403008/ )

Reason for revert:
[Sheriff] This lets a gc stress test time out:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20gc%20stress/builds/2337/steps/Mjsunit%20%28flakes%29/logs/regress-542823

The test ran in <2sec before this. Please fix the test as well on a reland.

Original issue's description:
> Replace PushIfAbsent by a Stack object and move StringBuilderJoin to JS
>
> This significantly speeds up String(array).
> BUG=
>
> Committed: https://crrev.com/c91faa0b39b62025460eb9f8b578e20d88f3549e
> Cr-Commit-Position: refs/heads/master@{#34696}

TBR=cbruni@chromium.org,adamk@chromium.org,bmeurer@chromium.org,verwaest@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1785003004

Cr-Commit-Position: refs/heads/master@{#34706}

R=jkummerow@chromium.org
BUG=v8:4810
LOG=N

Review URL: https://codereview.chromium.org/1780173002

Cr-Commit-Position: refs/heads/master@{#34705}

Rolling v8/tools/clang to 96f43fa6c1232981bc401c0b6f2e2697a318356b

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

Review URL: https://codereview.chromium.org/1781183002

Cr-Commit-Position: refs/heads/master@{#34704}

TBR=littledan@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1783853003

Cr-Commit-Position: refs/heads/master@{#34703}

R=littledan@chromium.org
BUG=v8:4810
LOG=N

Review URL: https://codereview.chromium.org/1780183002

Cr-Commit-Position: refs/heads/master@{#34702}

R=binji@chromium.org

Review URL: https://codereview.chromium.org/1779123002

Cr-Commit-Position: refs/heads/master@{#34701}

  port 5096492f (r34627)

  original commit message:
  - Eliminate stubs with a variable number of arguments.
    (That only worked due to their very limited use. These
     stubs' interface descriptors were basically lying
     about their number of args, which will fail when used
     generically.)
  - Fix all CallApi*Stubs' interface descriptors to no
    longer lie about their arguments.
  - Unify CallApi*Stub, for * in Function, Accessor,
    FunctionWithFixedArgs.
    (Since these are now all doing the same thing.)
  - Rename the unified stub (and interface descriptors) to
    *ApiCallback*, since that's really what they're doing.
  - Refuse inlining an API callback if its number of
    parameters exceeds the supported number of args.

BUG=

Review URL: https://codereview.chromium.org/1784623006

Cr-Commit-Position: refs/heads/master@{#34700}

Now that the destructuring flags are gone, we always call
CheckAndRewriteReferenceExpression, so unified the two methods again.
Also cleaned up the code within, e.g. removing unnecessary Scanner::Location
construction.

Review URL: https://codereview.chromium.org/1781933003

Cr-Commit-Position: refs/heads/master@{#34699}