This almost allows us to get rid of handles-inl.h, once we fix the
cyclic dependencies (follow up CL).

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1128533002

Cr-Commit-Position: refs/heads/master@{#28222}

Review URL: https://codereview.chromium.org/1122823002

Cr-Commit-Position: refs/heads/master@{#28221}

TBR=mvstanton@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1124583006

Cr-Commit-Position: refs/heads/master@{#28220}

Tail calls are matched on the graph, with a dedicated tail call
optimization that is actually testable. The instruction selection can
still fall back to a regular if the platform constraints don't allow to
emit a tail call (i.e. the return locations of caller and callee differ
or the callee takes non-register parameters, which is a restriction that
will be removed in the future).

Also explicitly limit tail call optimization to stubs for now and drop
the global flag.

BUG=v8:4076
LOG=n

Review URL: https://codereview.chromium.org/1114163005

Cr-Commit-Position: refs/heads/master@{#28219}

BUG=

Review URL: https://codereview.chromium.org/1128483003

Cr-Commit-Position: refs/heads/master@{#28218}

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1127693006

Cr-Commit-Position: refs/heads/master@{#28217}

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/1122033002

Cr-Commit-Position: refs/heads/master@{#28216}

By recording invocations of these builtins that can return -0, we now learn to not emit Crankshaft code that only handles integer results, avoiding deopt loops.

Review URL: https://codereview.chromium.org/1053143005

Cr-Commit-Position: refs/heads/master@{#28215}

These macros are not needed anymore, so there's no point in supporting
them.

Review URL: https://codereview.chromium.org/1123723003

Cr-Commit-Position: refs/heads/master@{#28214}

When we preprocess stack traces, we turn code pointer and offset to
source position, and store it in place of code pointer as smi.

Preprocessing stack traces is currently disabled due to issue 4065.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1125723002

Cr-Commit-Position: refs/heads/master@{#28213}

AIX compiler is complaining that variable may not be initialized

	modified:   src/heap/heap.cc

R=danno@chromium.org, svenpanne@chromium.org, mbrandy@us.ibm.com

BUG=

Review URL: https://codereview.chromium.org/1123743002

Cr-Commit-Position: refs/heads/master@{#28212}

Tick event processor should not stay in a tight loop
when there's nothing to do. It can go sleep until next sample event.

LOG=N
BUG=v8:3967

Review URL: https://codereview.chromium.org/1118533003

Cr-Commit-Position: refs/heads/master@{#28211}

Review URL: https://codereview.chromium.org/1120373003

Cr-Commit-Position: refs/heads/master@{#28210}

R=mstarzinger@chromium.org, jarin@chromium.org, dstence@us.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1123793002

Cr-Commit-Position: refs/heads/master@{#28209}

Revert of Reland "Wrap v8natives.js into a function." (patchset #2 id:20001 of https://codereview.chromium.org/1123703002/)

Reason for revert:
[Sheriff] Speculative revert for braking arm64 nosnap:
http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20nosnap%20-%20debug%20-%202/builds/2314

(reverted already titzer's CL which didn't help)

Original issue's description:
> Reland "Wrap v8natives.js into a function."
>
> Committed: https://crrev.com/72ab42172979b60a1b784ea0c6a495d7ee2bba67
> Cr-Commit-Position: refs/heads/master@{#28193}

TBR=jkummerow@chromium.org,yangguo@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1127543003

Cr-Commit-Position: refs/heads/master@{#28208}

Revert of Revert of [turbofan] Small fixes to PipelineStatistics. Collect statistics in tests. (patchset #1 id:1 of https://codereview.chromium.org/1119963003/)

Reason for revert:
Revert didn't fix the problem. Maybe it was another CL.

Original issue's description:
> Revert of [turbofan] Small fixes to PipelineStatistics. Collect statistics in tests. (patchset #1 id:1 of https://codereview.chromium.org/1122753002/)
>
> Reason for revert:
> [Sheriff] Speculative revert for breaking arm64 nosnap:
> http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20nosnap%20-%20debug%20-%202/builds/2314
>
> Original issue's description:
> > [turbofan] Small fixes to PipelineStatistics. Collect statistics in tests.
> >
> > R=bmeurer@chromium.org
> > BUG=
> >
> > Committed: https://crrev.com/9833844268357590243732a53e2a7fc0dc5fcc9e
> > Cr-Commit-Position: refs/heads/master@{#28192}
>
> TBR=bmeurer@chromium.org,titzer@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=
>
> Committed: https://crrev.com/d0ed8940fc6c995eba57149b8e8cb214001e8381
> Cr-Commit-Position: refs/heads/master@{#28205}

TBR=bmeurer@chromium.org,titzer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1126603002

Cr-Commit-Position: refs/heads/master@{#28207}

BUG=v8:3985
LOG=n
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/1122083002

Cr-Commit-Position: refs/heads/master@{#28206}

Revert of [turbofan] Small fixes to PipelineStatistics. Collect statistics in tests. (patchset #1 id:1 of https://codereview.chromium.org/1122753002/)

Reason for revert:
[Sheriff] Speculative revert for breaking arm64 nosnap:
http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20nosnap%20-%20debug%20-%202/builds/2314

Original issue's description:
> [turbofan] Small fixes to PipelineStatistics. Collect statistics in tests.
>
> R=bmeurer@chromium.org
> BUG=
>
> Committed: https://crrev.com/9833844268357590243732a53e2a7fc0dc5fcc9e
> Cr-Commit-Position: refs/heads/master@{#28192}

TBR=bmeurer@chromium.org,titzer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1119963003

Cr-Commit-Position: refs/heads/master@{#28205}

NOTRY=true
TBR=jochen@chromium.org

Review URL: https://codereview.chromium.org/1126433004

Cr-Commit-Position: refs/heads/master@{#28204}

Port fab35080

R=verwaest@chromium.org, dstence@us.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1122773002

Cr-Commit-Position: refs/heads/master@{#28203}

BUG=chromium:483176
LOG=n

Review URL: https://codereview.chromium.org/1114073003

Cr-Commit-Position: refs/heads/master@{#28202}

This test fails on board, temporarily skip failing test until we resolve this issue.

NOTRY=true

Review URL: https://codereview.chromium.org/1127573002

Cr-Commit-Position: refs/heads/master@{#28201}

BUG=

Review URL: https://codereview.chromium.org/1120093002

Cr-Commit-Position: refs/heads/master@{#28200}

BUG=

Review URL: https://codereview.chromium.org/1073953006

Cr-Commit-Position: refs/heads/master@{#28199}

This removes the last occurence of the hand-written ZoneList from the
compiler directory and uses ZoneVector everywhere instead.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1120083004

Cr-Commit-Position: refs/heads/master@{#28198}

usage: This tool analyzes the commit range between <of> and <until>. It finds commits which belong together e.g. Implement/Revert pairs and Implement/Port/Revert triples. All supplied hashes need to be from the same branch e.g. master.

Example for M42: ./search_related_commits.py --prettyprint --separator e0110920 b856e878 b1c2a349

BUG=
NOTRY=true

Review URL: https://codereview.chromium.org/1098123002

Cr-Commit-Position: refs/heads/master@{#28197}

BUG=

Review URL: https://codereview.chromium.org/1124583003

Cr-Commit-Position: refs/heads/master@{#28196}

This introduces a simplified allocation operator which can be used to
model inline allocations in TurboFan. It is currently used for context
allocations, but still disabled because change lowering introduces
floating allocations outside the effect chain that interfere.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1109773002

Cr-Commit-Position: refs/heads/master@{#28195}

These instructions have unpredictable result when the processor is in fp32 mode.

BUG=

TEST=mjsunit/math-floor-global,math-floor-local,math-floor-part1

Review URL: https://codereview.chromium.org/1116073002

Cr-Commit-Position: refs/heads/master@{#28194}

Review URL: https://codereview.chromium.org/1123703002

Cr-Commit-Position: refs/heads/master@{#28193}

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1122753002

Cr-Commit-Position: refs/heads/master@{#28192}

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1118823003

Cr-Commit-Position: refs/heads/master@{#28191}

Otherwise it's whatever the js minifier assigns it to.

R=jkummerow@chromium.org
BUG=chromium:484077
LOG=N

Review URL: https://codereview.chromium.org/1122733002

Cr-Commit-Position: refs/heads/master@{#28190}

port 83a0af55 (r28165).

original commit message:

   VectorICs: built-in function apply should use an IC.

   Handled a TODO that sent builtin function apply to the runtime on property get.

BUG=

Review URL: https://codereview.chromium.org/1119263002

Cr-Commit-Position: refs/heads/master@{#28189}

port fb8e6136 (r28163).

original commit message:

 We were deopting without learning anything.

 This is a rebase/reland of https://codereview.chromium.org/368263003

BUG=

Review URL: https://codereview.chromium.org/1125623002

Cr-Commit-Position: refs/heads/master@{#28188}

Revert of [V8] Use previous token location as EOS token location (patchset #2 id:20001 of https://codereview.chromium.org/1100993003/)

Reason for revert:
[Sheriff] Speculative revert. This seems to block the current roll:
https://codereview.chromium.org/1124463003/

This bisect also points at this CL:
https://codereview.chromium.org/1124523002/

Please prepare the chromium side tests before a reland.

Original issue's description:
> [V8] Use previous token location as EOS token location
>
> EOS token location is useless for users and messages.js are not ready for its location.
> With this CL we use location of token before EOS for it.
>
> LOG=Y
> BUG=chromium:480652
> R=yurys@chromium.org,yangguo@chromium.org
>
> Committed: https://crrev.com/81afc9313ce84350bcba9f84b255a77e97cd3726
> Cr-Commit-Position: refs/heads/master@{#28164}

TBR=yangguo@chromium.org,yurys@chromium.org,kozyatinskiy@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:480652

Review URL: https://codereview.chromium.org/1116233004

Cr-Commit-Position: refs/heads/master@{#28187}

Rolling v8/tools/clang to a8549b6dd82c3b35a06f9894fa7abdcbbf0bd6f5

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1120243002

Cr-Commit-Position: refs/heads/master@{#28186}

Most of the issues so far encountered with the greedy allocator rest with the splitting mechanism. This change has:

- all RegisterAllocatorTest unit tests passing, when unittest has the flags: --turbo-filter=* --always-opt --turbo-deoptimization --turbo-verify-allocation --turbo_greedy_regalloc

./tools/run-tests.py passing when providing --turbo_greedy_regalloc, but still having some failing (more than the "normal" 43) when passing all the flags. I realize just passing --turbo_greedy_regalloc does not provide full coverage, but it did uncover some bugs, still

The CL centralizes the computing of split points (for "losing" intervals) with the determination of whether an interval is irreducible, and, therefore, of infinite spill weight (if an interval can't be split or spilled, it can't lose in weight comparison because there's nothing we can do to it and make progress).

There are allocator efficiency opportunities I haven't yet taken (this refers to the code itself, not the generated code). For example, the above split/spill computation can be cached. My plan is to defer this to at least after we see numbers showing the value of the algorithm, and potentially do at the same time we remove the linear algorithm, if that is still the plan. At that time, we can look where some APIs best belong (e.g. weight computation may fully live and cache itself on LiveRange)

In addition, the CL adds a few debug-time-only Print APIs I found very useful:  on demand (while in GDB) dump of the code, live range info (use positions & operand description, and intervals), etc.

BUG=

Review URL: https://codereview.chromium.org/1105793002

Cr-Commit-Position: refs/heads/master@{#28185}

Rolling v8/third_party/icu to f8c0e585b0a046d83d72b5d37356cb50d5b2031a

Rolling v8/tools/clang to 15ea3e6cc23fd6ff5545bd939ee153b97807668d

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1117163003

Cr-Commit-Position: refs/heads/master@{#28184}

4b122b75

BUG=

Review URL: https://codereview.chromium.org/1116913002

Cr-Commit-Position: refs/heads/master@{#28183}