port e95cfafb (r36917)

  original commit message:
  This fixes FastNewStrictArgumentsStub and FastNewRestParameterStub to no
  longer assume that the strict arguments object being allocated will fit
  into new-space. The case where said object needs to move to large object
  space is now handled in the runtime.

BUG=

Review-Url: https://codereview.chromium.org/2100003002
Cr-Commit-Position: refs/heads/master@{#37263}

  port 89d8c57b (r36916)

  original commit message:
  Import base::ieee754::atan() and base::ieee754::atan2() from fdlibm and
  introduce Float64Atan and Float64Atan2 TurboFan operators based on those,
  similar to what we already did for Float64Log and Float64Log1p. Rewrite
  Math.atan() and Math.atan2() as TurboFan builtin and use the operators
  to also inline Math.atan() and Math.atan2() into optimized TurboFan functions.

BUG=

Review-Url: https://codereview.chromium.org/2093423003
Cr-Commit-Position: refs/heads/master@{#37262}

Rolling v8/build to e6d755246d1db2bc122ff2bfbc2b741b43d4afb7

Rolling v8/tools/mb to 3bf9b2fd6fb3127fc9b29d30cc4ff82eb025b7f6

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

Review-Url: https://codereview.chromium.org/2088393007
Cr-Commit-Position: refs/heads/master@{#37261}

BUG=v8:4483, v8:5148
R=littledan@chromium.org, adamk@chromium.org, jwolfe@igalia.com, nikolaos@chromium.org

Review-Url: https://codereview.chromium.org/2091313002
Cr-Commit-Position: refs/heads/master@{#37260}

We deviate from spec in that, in our implementation, __defineGetter__ on non-
configurable properties returns false instead of throwing a TypeError. This commit
adds a use counter to track how often we would be throwing an error we currently
avoid, to determine if we can change to align with spec or if the spec is not
implementable.

BUG=v8:5070

Review-Url: https://codereview.chromium.org/2089533002
Cr-Commit-Position: refs/heads/master@{#37259}

Don't assume bucket name to start with 'master.'.

NOTRY=True
BUG=chromium:617627
R=machenbach@chromium.org

Review-Url: https://codereview.chromium.org/2093993002
Cr-Commit-Position: refs/heads/master@{#37258}

https://crrev.com/d3a95b8a78eefabf884a60bc3d6aac5830b44eb3
The removed tests are a mix of renamed files and tests which have been
removed after the spec was relaxed.

Also marks one test as a test262 failure rather than our failure.

Review-Url: https://codereview.chromium.org/2098833002
Cr-Commit-Position: refs/heads/master@{#37257}

The hash field is supposed to be 4 bytes even in 64-bit. But the
default parameter of StoreObjectFieldNoWriteBarrier using kTagged
will generate 64-bit store. Fix by Replacing kTagged with kWord32.

This causes ~200 test failures on big-endian, because hash field
offset in BE is 12 instead of 8 in LE platforms.

R=bmeurer@chromium.org, epertoso@chromium.org, joransiu@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com, bjaideep@ca.ibm.com
BUG=

Review-Url: https://codereview.chromium.org/2095003003
Cr-Commit-Position: refs/heads/master@{#37256}

  port 7ceed92a (r36914)

  original commit message:
  Import base::ieee754::log1p() from fdlibm and introduce a Float64Log1p
  TurboFan operator based on that, similar to what we do for Float64Log.
  Rewrite Math.log1p() as TurboFan builtin and use that operator to also
  inline Math.log1p() into optimized TurboFan functions.

  Also unify the handling of the special IEEE 754 functions somewhat in
  the TurboFan backends. At some point we can hopefully express this
  completely in the InstructionSelector (once we have an idea what to do
  with the ST(0) return issue on IA-32/X87).

BUG=

  Drive-by-fix: Add some more test coverage for the log function.
Review-Url: https://codereview.chromium.org/2094953002

Cr-Commit-Position: refs/heads/master@{#37255}

BUG=chromium:622664

Review-Url: https://codereview.chromium.org/2092943003
Cr-Commit-Position: refs/heads/master@{#37254}

This simplifies the calling convention of LoadGlobalIC.

Currently we do a linear search to get the name but I'll address this in a follow-up CL.

BUG=chromium:576312
TBR=rossberg@chromium.org

Review-Url: https://codereview.chromium.org/2084913006
Cr-Commit-Position: refs/heads/master@{#37253}

BUG=

Review-Url: https://codereview.chromium.org/2095673002
Cr-Commit-Position: refs/heads/master@{#37252}

- Adds the concept of FP register aliasing to RegisterConfiguration.
- Changes RegisterAllocator to distinguish between FP representations
when allocating.
- Changes LinearScanAllocator to detect interference when FP register
aliasing is combining, as on ARM.
- Changes ARM code generation to allow all registers s0 - s31 to be
accessed.
- Adds unit tests for RegisterConfiguration, mostly to test aliasing
calculations.

LOG=N
BUG=v8:4124

Review-Url: https://codereview.chromium.org/2086653003
Cr-Commit-Position: refs/heads/master@{#37251}

Revert of Use instance type in Object::IsErrorObject(). (patchset #9 id:160001 of https://codereview.chromium.org/2090333002/ )

Reason for revert:
[Sheriff] Breaks layout tests:
https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/7700

Please rebase upstream first if intended.

Original issue's description:
> Use JS_ERROR_TYPE to check for error objects.
>
> Replace explicit Object::IsErrorObject() with macro generated functions Object::IsJSError() and HeapObject::IsJSError().
>
> BUG=
>
> Committed: https://crrev.com/90e4fd136387ca7271d8ea87f4fc667e4f55063b
> Cr-Commit-Position: refs/heads/master@{#37244}

TBR=verwaest@chromium.org,jochen@chromium.org,franzih@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/2092083002
Cr-Commit-Position: refs/heads/master@{#37250}

BUG=chromium:616035
NOTRY=true

Review-Url: https://codereview.chromium.org/2081263003
Cr-Commit-Position: refs/heads/master@{#37249}

BUG=chromium:616035
NOTRY=true

Review-Url: https://codereview.chromium.org/2082283002
Cr-Commit-Position: refs/heads/master@{#37248}

Maintain the parent frame pointer in a variable after loading it to avoid
having to reload it each time it is required.

BUG=v8:4280

Review-Url: https://codereview.chromium.org/2085353005
Cr-Commit-Position: refs/heads/master@{#37247}

BUG=chromium:616035
NOTRY=true

Review-Url: https://codereview.chromium.org/2083153003
Cr-Commit-Position: refs/heads/master@{#37246}

  port 8c1ba59a (r36911)

  original commit message:
  RelocInfo modes were not propagated when computing
  MemoryOperands, on IA32. This needed to be fixed so that we can
  compile wasm code before creating instances, since the compiled code
  needs to be patched up for memory and globals references.

  This surfaces in asm-to-wasm scenarios.

  Added testing (rather, enhanced existing tests).
  Note patch#1 where we fail on ia32, and patch#2 with the fix.

BUG=

Review-Url: https://codereview.chromium.org/2097583003
Cr-Commit-Position: refs/heads/master@{#37245}

Replace explicit Object::IsErrorObject() with macro generated functions Object::IsJSError() and HeapObject::IsJSError().

BUG=

Review-Url: https://codereview.chromium.org/2090333002
Cr-Commit-Position: refs/heads/master@{#37244}

  port c8ac0d86(r36888)

  original commit message:
  Instead, always tail call to the runtime. Also, cleanup the various versions
  of the runtime call that is used for Array construction fallback. There can be
  only one.

BUG=

Review-Url: https://codereview.chromium.org/2080223009
Cr-Commit-Position: refs/heads/master@{#37243}

  port d0c7775d(r36880)

  original commit message:
  This switches Math.log to use an fdlibm based version of log, imported
  as base::ieee754::log, and use that consistently everywhere, i.e. change
  the Float64Log TurboFan operators on Intel to use the C++ implementation
  as well (same for Crankshaft).

BUG=

Review-Url: https://codereview.chromium.org/2081653005
Cr-Commit-Position: refs/heads/master@{#37242}

Port fc59eb8a

Original commit message:
Moves between operands with different representations shouldn't happen,
so don't test them. This makes it easier to modify canonicalization to
differentiate between floating point types, which is needed to support
floating point register aliasing for ARM and MIPS.

This change also expands tests to include explicit FP moves (both register and stack slot).

LOG=N
BUG=v8:4124
BUG=chromium:622619

Review-Url: https://codereview.chromium.org/2090993002
Cr-Commit-Position: refs/heads/master@{#37241}

Signature indices are encoded as SMIs in the function table of a wasm
module. To compare a signature index with the index parameter that is
passed to an indirect function call, we now change the signature index
to an int32 instead of encoding the index parameter as a SmiConstant.
SmiConstants get encoded as NumberConstant nodes in the TF graph, which
can cause the allocation of heap numbers. Heap allocation has to be
avoided for parallel compilation.

R=bradnelson@chromium.org, titzer@chromium.org

Review-Url: https://codereview.chromium.org/2090923002
Cr-Commit-Position: refs/heads/master@{#37240}

Skip unicodelctest and friends for some turbo and turbo +
ignition variants.

TBR=Benedikt Meurer, rmcilroy
NOTRY=true
NOTREECHECKS=true

Review-Url: https://codereview.chromium.org/2095873002
Cr-Commit-Position: refs/heads/master@{#37239}

Rolling v8/build to eef98eaf4956bbe8d24e5172acd1ffb44d0089a5

Rolling v8/tools/clang to cff206a88b16f784285391dcc4c444206f967024

Rolling v8/tools/mb to 8687d262d22fb2907b3be774c2643f27200aec62

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

Review-Url: https://codereview.chromium.org/2099593002
Cr-Commit-Position: refs/heads/master@{#37238}

We have a lot of long-encoded root list items in type feedback vectors.

Review-Url: https://codereview.chromium.org/2090563002
Cr-Commit-Position: refs/heads/master@{#37237}

Revert of Amends the TypedArray constructor to use the path for primitives for all (patchset #3 id:40001 of https://codereview.chromium.org/2096873002/ )

Reason for revert:
[Sheriff] Breaks layout tests. Please rebase upstream if intended:
https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/7691

Original issue's description:
> Amends the TypedArray constructor to use the path for primitives for all
> types of primitives, not just undefined, booleans, numbers, and strings.
> (The missing cases were null and Symbol.) This is required by the
> specification, and there are test262 tests which we were failing due to
> this bug.
>
> BUG=v8:5124
>
> Committed: https://crrev.com/f788bd9cce19815cba746e47bb65abfe25c16208
> Cr-Commit-Position: refs/heads/master@{#37234}

TBR=littledan@chromium.org,bakkot@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5124

Review-Url: https://codereview.chromium.org/2091693004
Cr-Commit-Position: refs/heads/master@{#37236}

Flags removed (all begin with "harmony-"):
  function-name
  instanceof
  iterator-close
  unicode-regexps
  regexp-exec
  regexp-subclass
  species

BUG=v8:3566, v8:3648, v8:3699, v8:4093, v8:4447, v8:4602

Review-Url: https://codereview.chromium.org/2096933002
Cr-Commit-Position: refs/heads/master@{#37235}

types of primitives, not just undefined, booleans, numbers, and strings.
(The missing cases were null and Symbol.) This is required by the
specification, and there are test262 tests which we were failing due to
this bug.

BUG=v8:5124

Review-Url: https://codereview.chromium.org/2096873002
Cr-Commit-Position: refs/heads/master@{#37234}

Merge branch 'master' of https://chromium.googlesource.com/v7/v8 into unused_variables

Removed unused variables "length" from the signature "consume_u32v". The variable length (passed in as a parameter) is not read from the function, rather it set based on the pc_ offset. However, the value set is also not used in the main line of control flow during decoding. This seems to be some dead code.

BUG=

Review-Url: https://codereview.chromium.org/2093823003
Cr-Commit-Position: refs/heads/master@{#37233}

TypedArrays store their true length in an internal slot. This is
normally reflected in the .length property, but that property is
configurable. Algorithms which need the length of a typed array are to
use the internal slot, not the property; TypedArray.prototype.set was
not doing this.

BUG=v8:5133

Review-Url: https://codereview.chromium.org/2091153002
Cr-Commit-Position: refs/heads/master@{#37232}

BUG=

Review-Url: https://codereview.chromium.org/2096673002
Cr-Commit-Position: refs/heads/master@{#37231}

Cleaning up the code to replace all instances of "i++" in for loops with the more efficient "++i".
The latter foregoes an extra intermediate variable.

BUG=v8:5044

Review-Url: https://codereview.chromium.org/2094573002
Cr-Commit-Position: refs/heads/master@{#37230}

It appears to have been dropped accidentally as part of 1150092b's
removal of strong mode for binary ops.

Review-Url: https://codereview.chromium.org/2092493002
Cr-Commit-Position: refs/heads/master@{#37229}

While we properly handled scopes of initializers in destructured parameters,
we never did the right thing for computed properties. This patch fixes that
by factoring out PatternRewriter's scope rewriting logic and calls it
for the computed property case.

BUG=chromium:620119

Review-Url: https://codereview.chromium.org/2084103002
Cr-Commit-Position: refs/heads/master@{#37228}

Reason for revert:
Reland fixing msan and tsan

Original issue's description:
> Revert of Test262 roll (patchset #15 id:280001 of https://codereview.chromium.org/2068263002/ )
>
> Reason for revert:
> Broke msan and tsan; need to add an extra skip
>
> Original issue's description:
> > Test262 roll
> >
> > This roll does not include a test harness change; infrastructure issues
> > still need to be worked out.
> >
> > Committed: https://crrev.com/d3a95b8a78eefabf884a60bc3d6aac5830b44eb3
> > Cr-Commit-Position: refs/heads/master@{#37225}
>
> TBR=adamk@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
>
> Committed: https://crrev.com/8ea2cbea2e65dc506d50a25a81e610f37bc751ec
> Cr-Commit-Position: refs/heads/master@{#37226}

TBR=adamk@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/2097573003
Cr-Commit-Position: refs/heads/master@{#37227}

Reason for revert:
Broke msan and tsan; need to add an extra skip

Original issue's description:
> Test262 roll
>
> This roll does not include a test harness change; infrastructure issues
> still need to be worked out.
>
> Committed: https://crrev.com/d3a95b8a78eefabf884a60bc3d6aac5830b44eb3
> Cr-Commit-Position: refs/heads/master@{#37225}

TBR=adamk@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/2094613004
Cr-Commit-Position: refs/heads/master@{#37226}

This roll does not include a test harness change; infrastructure issues
still need to be worked out.

Review-Url: https://codereview.chromium.org/2068263002
Cr-Commit-Position: refs/heads/master@{#37225}

Since [1], Logger does not dispatch anymore to the other loggers. This is
now the task of the CodeEventDispatcher, and Logger is just a client.

One use of the Logger as dispatcher wasn't caught in the refactoring, which
caused the entries for bytecode handlers loaded from the snapshot to be
missing from the symbols mapping written by PerfBasicLogger.

[1] https://crrev.com/9df23510eaa12eb5c298cf68a92e90c6e992855c

BUG=v8:4899
LOG=N

Review-Url: https://codereview.chromium.org/2085143003
Cr-Commit-Position: refs/heads/master@{#37224}