This will get a new call site in an upcoming commit, move it to String
so it's accessible from without runtime-strings.cc.

BUG=

Review-Url: https://codereview.chromium.org/2176553002
Cr-Commit-Position: refs/heads/master@{#37974}

The effect control linearizer runs off-thread and needs the ToNumber
call descriptor. Add a hack to create this on the main thread to
ensure off-thread's don't race on it's construction. Also add a
DCHEK to the CallInterfaceDescriptor to ensure they are always
initilaized on the main thread.

Review-Url: https://codereview.chromium.org/2168843003
Cr-Commit-Position: refs/heads/master@{#37973}

The auto-tag bot removes the need to handle version changes
in each merge individually. As a result this 'feature' is
removed.

BUG=v8:4408
R=machenbach@chromium.org
LOG=N
NOTRY=true

Review-Url: https://codereview.chromium.org/1398033003
Cr-Commit-Position: refs/heads/master@{#37972}

So far we don't have a useful way to inline Math.max or Math.min in
TurboFan optimized code. This adds new operators NumberMax and NumberMin
and changes the Float64Max/Float64Min operators to have JavaScript
semantics instead of the C++ semantics that it had previously.

This also removes support for recognizing the tenary case in the
CommonOperatorReducer, since that doesn't seem to have any positive
impact (and actually doesn't show up in regular JavaScript, where
people use Math.max/Math.min instead).

Drive-by-fix: Also nuke the unused Float32Max/Float32Min operators.

R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2170343002
Cr-Commit-Position: refs/heads/master@{#37971}

This re-lands r37926 w/ the needed fix for cross-compiles; we
can only re-use the default toolchain when the host can actually
run it.

R=machenbach@chromium.org
BUG=629825

Review-Url: https://codereview.chromium.org/2171083003
Cr-Commit-Position: refs/heads/master@{#37970}

This allows us to skip complicated logic for setting the accessors.

BUG=

Review-Url: https://codereview.chromium.org/2164903004
Cr-Commit-Position: refs/heads/master@{#37969}

NOTRY=true
TBR=littledan@chromium.org

Review-Url: https://codereview.chromium.org/2171233002
Cr-Commit-Position: refs/heads/master@{#37968}

BUG=630386
LOG=n

Review-Url: https://codereview.chromium.org/2160613002
Cr-Commit-Position: refs/heads/master@{#37967}

This is in preparation to implementing exception prediction for async
functions.  Each handler table entry can now predict "caught", "uncaught", or
"promise". The latter indicates that the exception will lead to a promise
rejection.

To mark the relevant try-catch blocks, we add a new native syntax.
try { } %catch (e) { } indicates a TryCatchStatement with the "promise"
prediction.

The previous implementation of using the function to tell the relevant
try-catch apart from inner try-catch blocks will not work for async functions
since these can have inner try-catch blocks inside the same function.

BUG=v8:5167

Review-Url: https://codereview.chromium.org/2161263003
Cr-Commit-Position: refs/heads/master@{#37966}

We can compute the absolute integer value w/o any conditional execution
by using the bit trick formula

  let sign = input >> 31 in
  (input ^ sign) - sign

which generates fairly decent code on all supported architectures.

R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2169293002
Cr-Commit-Position: refs/heads/master@{#37965}

Rolling v8/build to 5782f1c84fc41934d265f69e5bd61badbf61e5c5

Rolling v8/tools/mb to c0f2da01e7e7e530fcbbf3823b7c7655632f05b1

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

Review-Url: https://codereview.chromium.org/2171153002
Cr-Commit-Position: refs/heads/master@{#37964}

  port 4b59bf53 (r37934)

  original commit message:
  Use the ForInFilterStub directly. Hence we will only jump to the runtime for
  special receivers (instance_type <= LAST_SPECIAL_RECEIVER_TYPE) and for
  converting element indices which are not in the string cache.

BUG=

Review-Url: https://codereview.chromium.org/2176473002
Cr-Commit-Position: refs/heads/master@{#37963}

  port 66cb026f (r37929)

  original commit message:
  Original message:

  Calling Runtime::kAbort through a builtin instead of the c-entry stub
  will allow to generate the call in a background thread, because a
  builtin provides its own handle, whereas a code stub does not.

  @v8-mips-ports: Could you take a special look at the padding that is
  done in MacroAssembler::Abort()?

  Reason for revert:
  The reason for reverting is: Blocks roll:
  https://build.chromium.org/p/client.v8.ports/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20debug/builds/1622

  The problem was that on arm64 the builtin for Abort() contained a call to
  Abort(). The problem is fixed by using a NoUseRealAbortsScope in the
  code generation of Abort().

BUG=

Review-Url: https://codereview.chromium.org/2172093002
Cr-Commit-Position: refs/heads/master@{#37962}

Revert "[wasm] Adding a convolution matrix filter test to highlight the performance advantages of JITing"

GC-Stress asserts in filter-jit.

This reverts commit ccfd224e.

BUG=v8:5044
R=bradnelson@chromium.org

Review-Url: https://codereview.chromium.org/2168343002
Cr-Commit-Position: refs/heads/master@{#37961}

Port 8aeb7439

     Fix for ppc file, using macro functions to xor and add to
     handle the case when kPrimaryMagic/kSecondaryMagic is > 16bits.

R=ishell@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=
LOG=N

Review-Url: https://codereview.chromium.org/2169183002
Cr-Commit-Position: refs/heads/master@{#37960}

See discussion in https://codereview.chromium.org/2156303002/#msg8

With the new --harmony-function-tostring behavior, these tests would
fail without this change. This change makes the tests pass regardless
of whether or not --harmony-function-tostring is used.

All of these changes are simply inserting a space after the "function"
keyword to match the current function toString behavior. When
--harmony-function-tostring is enabled, the toString behavior matches
the spacing used in the function declaration. With the declaration
matching the current formatting, the toString behavior becomes
unaffected by --harmony-function-tostring.

BUG=v8:4958
LOG=n

Review-Url: https://codereview.chromium.org/2161413002
Cr-Commit-Position: refs/heads/master@{#37959}

R=littledan@chromium.org

Review-Url: https://codereview.chromium.org/2172723003
Cr-Commit-Position: refs/heads/master@{#37958}

This cl also fixes two bugs in the previous code:
    1) JITed functions were not allowed access to the heap because the module instance wasn't correctly synthesized. This wasn't discovered in the previous test.
    2) Decoding of functions with the JITSingleFunction opcode was off by 1 as the length of the opcode wasn't computed correctly.
BUG=5044

Review-Url: https://codereview.chromium.org/2168183002
Cr-Commit-Position: refs/heads/master@{#37957}

Port e83739c0

    Fix applies to PPC/s390 as well.

R=jacob.bramley@arm.com, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=v8:5214
LOG=N

Review-Url: https://codereview.chromium.org/2167273003
Cr-Commit-Position: refs/heads/master@{#37956}

BUG=v8:5213

Review-Url: https://codereview.chromium.org/2163963003
Cr-Commit-Position: refs/heads/master@{#37955}

BUG= https://bugs.chromium.org/p/chromium/issues/detail?id=628803
BUG= https://bugs.chromium.org/p/v8/issues/detail?id=4203
TEST= cctest/asmjs/test-asm-typer.cc
LOG= N

Review-Url: https://codereview.chromium.org/2172603002
Cr-Commit-Position: refs/heads/master@{#37954}

Update the custom objdump script to handle inline comments starting
with '--' or ';;'.

Load d8 code.asm file if present.

BUG=

Review-Url: https://codereview.chromium.org/2159103007
Cr-Commit-Position: refs/heads/master@{#37953}

Review-Url: https://codereview.chromium.org/2168913002
Cr-Commit-Position: refs/heads/master@{#37952}

I had written "mipsel64", not "mips64el".

R=machenbach@chromium.org, milko.leporis@imgtec.com
BUG=629057

Review-Url: https://codereview.chromium.org/2167873002
Cr-Commit-Position: refs/heads/master@{#37951}

BUG= https://bugs.chromium.org/p/chromium/issues/detail?id=628450
BUG= https://bugs.chromium.org/p/v8/issues/detail?id=4203
TEST= cctest/asmjs/test-asm-typer.cc
TEST= mjsunit/wasm/*
LOG= N

Review-Url: https://codereview.chromium.org/2164273002
Cr-Commit-Position: refs/heads/master@{#37950}

We no longer need to prepare the stack overflow error in advance now that
Errors are constructed in C++.

R=yangguo@chromium.org
BUG=

Committed: https://crrev.com/ba95d10ccbe13e2fca427228483b045576f2dc4c
Review-Url: https://codereview.chromium.org/2161953003
Cr-Original-Commit-Position: refs/heads/master@{#37923}
Cr-Commit-Position: refs/heads/master@{#37949}

R=jgruber@chromium.org

Review-Url: https://codereview.chromium.org/2168883002
Cr-Commit-Position: refs/heads/master@{#37948}

Helper script to generate gn arguments based on common
developer defaults or builder configurations.

BUG=chromium:625791
NOTRY=true

Review-Url: https://codereview.chromium.org/2138693002
Cr-Commit-Position: refs/heads/master@{#37947}

BUG=chromium:618701

Review-Url: https://codereview.chromium.org/2167493003
Cr-Commit-Position: refs/heads/master@{#37946}

R=ahaas@chromium.org,rossberg@chromium.org,bradnelson@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2165633006
Cr-Commit-Position: refs/heads/master@{#37945}

This is never passed to the Typer, and actually wouldn't work
anyways, since we cannot derive any meaningful types for
Parameters in JavaScript.

R=mstarzinger@chromium.org

Review-Url: https://codereview.chromium.org/2171723002
Cr-Commit-Position: refs/heads/master@{#37944}

Add sign extension for Mips64Shr and Mips64Sar operators.

BUG=

Review-Url: https://codereview.chromium.org/2154703002
Cr-Commit-Position: refs/heads/master@{#37943}

R=mstarzinger@chromium.org
BUG=chromium:629996

Review-Url: https://codereview.chromium.org/2166123003
Cr-Commit-Position: refs/heads/master@{#37942}

Replace the zonelist with a link from a scope to any of its inner scopes, and a link to any sibling scope.
This makes scopes that track inner scopes use roughly the same amount of space as previously scopes without inner scopes would use for the empty zonelist (pointer to the memory + length field, which, granted could be slightly smaller on 64bit).

BUG=v8:5209

Review-Url: https://codereview.chromium.org/2162143005
Cr-Commit-Position: refs/heads/master@{#37941}

Only start checking if new keys are shadowed after the first prototype has added
non-enumerable shadow keys. This helps minimally in some corner cases if there
are few enumerable properties on the prototype compared to the receiver.

BUG=chromium:628173

Review-Url: https://codereview.chromium.org/2169523002
Cr-Commit-Position: refs/heads/master@{#37940}

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

Review-Url: https://codereview.chromium.org/2170773003
Cr-Commit-Position: refs/heads/master@{#37939}

It's anyway just the "same" AstNodeFactory (i.e., it's passed the same
AstValueFactory), so no need to have several of them for each
FunctionState.

R=verwaest@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2169823002
Cr-Commit-Position: refs/heads/master@{#37938}

BUG=

Review-Url: https://codereview.chromium.org/2161513002
Cr-Commit-Position: refs/heads/master@{#37937}

Revert of Fix double-building of v8 in GN builds when setting just v8_target_cpu. (patchset #1 id:1 of https://codereview.chromium.org/2166173002/ )

Reason for revert:
Breaks:
https://build.chromium.org/p/client.v8.fyi/builders/V8%20Android%20GN%20%28dbg%29/builds/4590

And also the trybot:
https://build.chromium.org/p/tryserver.chromium.android/builders/android_clang_dbg_recipe/builds/99806

Original issue's description:
> Fix double-building of v8 in GN builds when setting just v8_target_cpu.
>
> Because of the somewhat strange way default toolchains and custom
> toolchains and user-specified arguments work in GN, if you did a v8
> build that just set v8_target_cpu, you could end up building two
> identical copies of v8 (see the comments in the change for more).
>
> This CL identifies that case and fixes it.
>
> R=machenbach@chromium.org
> BUG=629825
>
> Committed: https://crrev.com/3536db45c9409c9aadc4eee6004cf337c0588cdb
> Cr-Commit-Position: refs/heads/master@{#37926}

TBR=dpranke@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=629825

Review-Url: https://codereview.chromium.org/2167113002
Cr-Commit-Position: refs/heads/master@{#37936}

Use better names for the query methods on the Truncation class, that
express more clearly what you intend to query.

R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2171703002
Cr-Commit-Position: refs/heads/master@{#37935}