Also add backend flags that tell whether integer division/modulus is
generally safe, i.e. does not trap on overflow or divide by zero.

TEST=unittests
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/681133004

Cr-Commit-Position: refs/heads/master@{#24942}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24942 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/674913002

Cr-Commit-Position: refs/heads/master@{#24941}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24941 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Use 'git new-branch' for creating new branches.

BUG=410721
LOG=n
TEST=script_test.py
R=tandrii@chromium.org

Review URL: https://codereview.chromium.org/680173003

Cr-Commit-Position: refs/heads/master@{#24940}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24940 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Methods should not have a prototype property

BUG=v8:3330
LOG=y
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/678103004

Cr-Commit-Position: refs/heads/master@{#24939}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24939 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

We can convert simple stack trace of an Error object to the detailed stack that
is used for debugging. Do so when available, and only then fall back to
reporting stack trace at throw site.

R=yangguo@chromium.org, Yang
LOG=Y

Review URL: https://codereview.chromium.org/674423002

Cr-Commit-Position: refs/heads/master@{#24938}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24938 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org, svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/683023002

Cr-Commit-Position: refs/heads/master@{#24937}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24937 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/687553002

Cr-Commit-Position: refs/heads/master@{#24936}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24936 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TEST=unittests
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/685723002

Cr-Commit-Position: refs/heads/master@{#24935}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24935 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This adds the properties to the prototype and the constructor.

BUG=v8:3330
LOG=Y
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/680993003

Cr-Commit-Position: refs/heads/master@{#24934}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24934 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

ES6 no longer makes duplicate properties an error. However, we
continue to treat duplicate properties in strict mode object
literals as errors. With this change we allow duplicate properties
in class bodies. We continue to flag duplicate constructors as an
error as required by ES6.

BUG=v8:3570
LOG=Y
R=marja@chromium.org

Review URL: https://codereview.chromium.org/677953004

Cr-Commit-Position: refs/heads/master@{#24933}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24933 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/682793005

Cr-Commit-Position: refs/heads/master@{#24932}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24932 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TEST=unittests
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/685713002

Cr-Commit-Position: refs/heads/master@{#24931}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24931 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=bmeurer@chromium.org, jarin@chromium.org
TEST=cctest/test-scheduler/LoopedFloatingDiamond

Review URL: https://codereview.chromium.org/682983003

Cr-Commit-Position: refs/heads/master@{#24930}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24930 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/678843004

Cr-Commit-Position: refs/heads/master@{#24927}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24927 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=dcarney@chromium.org

Review URL: https://codereview.chromium.org/678323002

Cr-Commit-Position: refs/heads/master@{#24926}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24926 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=ulan@chromium.org
BUG=chromium:409614
LOG=N

Review URL: https://codereview.chromium.org/684573005

Cr-Commit-Position: refs/heads/master@{#24924}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24924 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/655833005

Cr-Commit-Position: refs/heads/master@{#24923}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24923 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The localtime_s function produces incorrect results for russian time zone.

BUG=chromium:417640
LOG=Y
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/654843012

Cr-Commit-Position: refs/heads/master@{#24922}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24922 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=marja@chromium.org, svenpanne@chromium.org

BUG=

Review URL: https://codereview.chromium.org/652193006

Cr-Commit-Position: refs/heads/master@{#24921}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24921 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
TBR=ishell@chromium.org

Review URL: https://codereview.chromium.org/683033002

Cr-Commit-Position: refs/heads/master@{#24920}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24920 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

- JSToBoolean(x:string) => BooleanNot(NumberEqual(x.length, #0))
- JSToBoolean(phi(x1,...,xn):primitive) => phi(JSToBoolean(x1),...,JSToBoolean(xn))

TEST=cctest,mjsunit/asm/do-while,mjsunit/boolean,unittests
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/681223002

Cr-Commit-Position: refs/heads/master@{#24919}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24919 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/687473002

Cr-Commit-Position: refs/heads/master@{#24918}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24918 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TEST=unittests
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/680063004

Cr-Commit-Position: refs/heads/master@{#24917}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24917 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts commit a238443c (r24915)
for tanking benchmarks.

TBR=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/684693002

Cr-Commit-Position: refs/heads/master@{#24916}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24916 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/676353002

Cr-Commit-Position: refs/heads/master@{#24915}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24915 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

After r24737 pointer updating is done by atomic operations which strictly
require target address to be 8-byte alignment on MIPS64.

The alignment is broken on 64-bit arches because InstructionSize is first field
and has Int size.

Order of fields in object layout are changed to make kNextCodeLinkOffset
divisible by 8. The size of code object header remains the same.

TEST=cctest/test-debug/* on MIPS64
BUG=
R=jkummerow@chromium.org, paul.lind@imgtec.com

Review URL: https://codereview.chromium.org/682673002

Cr-Commit-Position: refs/heads/master@{#24914}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24914 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/667153005

Cr-Commit-Position: refs/heads/master@{#24913}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24913 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/680883003

Cr-Commit-Position: refs/heads/master@{#24912}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24912 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This CL adds a bitset to describe the type of IC in each IC slot.
This is necessary for clearing ICs of different types.

With FLAG_vector_ics off (the current state), it's not required because
CALL_IC is the only type of IC in the vector.

R=ishell@chromium.org

Review URL: https://codereview.chromium.org/679073002

Cr-Commit-Position: refs/heads/master@{#24911}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24911 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts commit 698356720824559a6bd81c24be707b44ac277526 for
breaking regress-96526-002 among other things.

TBR=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/678033002

Cr-Commit-Position: refs/heads/master@{#24910}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24910 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org, svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/675493002

Cr-Commit-Position: refs/heads/master@{#24909}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24909 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts commit 86603269 for breaking
tests.

TBR=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/681713004

Cr-Commit-Position: refs/heads/master@{#24908}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24908 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:3643
LOG=n
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/678753002

Cr-Commit-Position: refs/heads/master@{#24907}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24907 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/679093002

Cr-Commit-Position: refs/heads/master@{#24906}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24906 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/638833004

Cr-Commit-Position: refs/heads/master@{#24905}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24905 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/679793003

Cr-Commit-Position: refs/heads/master@{#24904}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24904 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts commit 940418d2e1150499a28cca60b5dd138d351ec652. It resulted in orphan (Document DOM trees) and (Detached DOM trees) nodes.

BUG=chromium:414190
LOG=N
TBR=loislo@chromium.org, yangguo@chromium.org

Review URL: https://codereview.chromium.org/639753007

Cr-Commit-Position: refs/heads/master@{#24903}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24903 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Eventually we are going to nuke this shortcuts from root entry altogether. This fix makes (GC roots) retained size equal to the snapshot's total size.

BUG=chromium:414190
LOG=N
R=loislo@chromium.org, yangguo@chromium.org

Review URL: https://codereview.chromium.org/681743002

Cr-Commit-Position: refs/heads/master@{#24902}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24902 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Revert of https://codereview.chromium.org/649563006/ due to layout test
failures.
BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/677403002

Cr-Commit-Position: refs/heads/master@{#24901}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24901 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Revert "Limit the number of transitions allowed per hidden class." Due to crashes in ClearMapTransitions

BUG=
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/661583004

Cr-Commit-Position: refs/heads/master@{#24900}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24900 ce2b1a6d-e550-0410-aec6-3dcde31c8c00