MIPS: Ensure double aligned allocations through runtime routines.

3rd (of 3) CLs to ensure complete alignment of FixedDoubleArrays.

TEST=
BUG=
R=mstarzinger@chromium.org, plind44@gmail.com

Review URL: https://codereview.chromium.org/35313002

Patch from Dusan Milosavljevic <Dusan.Milosavljevic@rt-rk.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17809 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
[Sheriff] Revert "MIPS: Ensure double aligned allocations through runtime routines."

This reverts commit r17809 for breaking the build.

TBR=plind44@gmail.com,
BUG=

Review URL: https://codereview.chromium.org/74803002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17810 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Prepare push to trunk.  Now working on version 3.23.7.

R=jkummerow@chromium.org
BUG=

Review URL: https://codereview.chromium.org/74753004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17816 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Match max property descriptor length to corresponding bit fields

BUG=v8:3010
R=verwaest@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/72333004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17823 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Remove unused keyed store "force generic".

R=ishell@chromium.org

Review URL: https://chromiumcodereview.appspot.com/73893003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17827 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Remove keyed load "force generic" miss case.
BUG=
R=ishell@chromium.org

Review URL: https://chromiumcodereview.appspot.com/68213024

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17828 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Refactor ChangeLog generation for push-to-trunk script.

This extracts the Git-independent part of the change log body generation. This CL intends no change in behavior.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/61263011

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17829 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Generate DataViewInitialize built-in in hydrogen.

R=bmeurer@chromium.org, mvstanton@chromium.org

Review URL: https://codereview.chromium.org/66843011

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17831 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Ensure that ToPositiveInteger is optimizable.

'throw %NAME(..)' cause hydrogen optimizations to be disabled for
surrounding function. This patch rectifies.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/71153004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17832 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Add initial auto-roll script.

To be called with a cron job.

TEST=tools/push-to-trunk/auto_roll.py

TODO: Add a revision filter to allow "MIPS" related changes to take over the lkgr.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/70373002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17833 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Make HTypeofIsAndBranch accept any representation input

when the input is known unbox number value, eliminate the dynamic check

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/58923004

Patch from Weiliang Lin <weiliang.lin@intel.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17834 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix broken pipe caused by commands in toolchain.gypi.

I sometimes observe broken pipe errors when I run gyp, which causes the gyp
process to fail. This seems to happen if gyp is executed under heavy I/O
pressure.

This change removes the pipes by replacing "echo |" with "< /dev/null".
Technically these are not the same, because "echo |" prints a newline while
"< /dev/null" doesn't, but this difference is not significant in the context of
the commands in toolchain.gypi.

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/73623002

Patch from Yuta Kitamura <yutak@chromium.org>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17836 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Use mock ArrayBuffer allocator to avoid really allocating 1Gb.

R=jkummerow@chromium.org
BUG=v8:3014
LOG=N

Review URL: https://codereview.chromium.org/61623009

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17837 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix data view accessors to throw execptions on offsets bigger than size_t.

R=jkummerow@chromium.org
BUG=v8:3013
LOG=Y

Review URL: https://codereview.chromium.org/74583003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17838 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Revert "Fix data view accessors to throw execptions on offsets bigger than size_t."

This reverts commit r17838 for breaking arm build.

TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/75213005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17839 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix data view accessors to throw execptions on offsets bigger than size_t.

R=jkummerow@chromium.org
BUG=v8:3013
LOG=Y

Review URL: https://codereview.chromium.org/74583003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17840 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Introduce addps/subps/mulps/divps for IA32/X64

BUG=
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/60093005

Patch from Weiliang Lin <weiliang.lin@intel.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17842 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix build on arm/x64 after r17840.

TBR=jkummerow@chromium.org
BUG=v8:3013
LOG=N

Review URL: https://codereview.chromium.org/75353002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17843 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Convert PatchCache (and related methods) to use types rather than objects/maps.

R=rossberg@chromium.org

Review URL: https://chromiumcodereview.appspot.com/75413002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17847 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Reapply r11765

Add static_cast<int> in HPositionInfo::position to please Win64 build.

Improvements in positions handling in optimizing compiler.

- When building binary arithmetic op and comparison restore source position of the operation itself before building operation itself after it was changed by building operands. This ensures that position recorded for operation points to the operation token instead of pointing to the rightmost operand;

- Add support for recording operands' positions and use these positions when inserting HChange instructions;

- When generating hydrogen.cfg emit H-instruction position as BCI (previously 0 was emitted), additionally on every lithium instruction emit annotation pointing to corresponding hydrogen-instruction. This allows to easily reach from deopt_id to lithium instruction and from it to hydrogen instruction and source position.

R=danno@chromium.org

Review URL: https://codereview.chromium.org/59703011

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17848 ce2b1a6d-e550-0410-aec6-3dcde31c8c00