Patch from ARM Ltd.

BUG=none
TEST=added to test/cctest/test-disasm-arm.cc

Original review at http://codereview.chromium.org/7013024/.

Review URL: http://codereview.chromium.org/7013027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7875 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Enter/exit frames with save doubles use these instructions instead of generating 16 load/store instructions.

R=karlklose@chromium.org, rodolph.perfetta@gmail.com

BUG=
TEST=

Review URL: http://codereview.chromium.org//6691057

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7509 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This patch introduces global once per-process initialization and moves
the OS and CPU setup there. This makes CPU features isolate-independent.

Review URL: http://codereview.chromium.org/6670119

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7462 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7271 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7269 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6685088

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7268 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Patch from ARM Ltd.

BUG=none
TEST=Added to cctest/test-assembler-arm.cc and cctest/test-disasm-arm.cc

Review URL: http://codereview.chromium.org/6625084

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7174 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Adds vabs instruction to simulator, assembler, disassembler and tests.

BUG=none
TEST=Added to cctest.

Review URL: http://codereview.chromium.org/6366016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6531 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Improve support for vmrs/vmsr in ARM disassembler.  This is a commit of http://codereview.chromium.org/4904001 for Martyn Capewell.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5824 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix incorrect encoding of single and double precision registers for some VFP instructions. Also fix incorrect disassembling of vldr/vstr.  This is a commit of http://codereview.chromium.org/3107027 for Rodolph Perfetta.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5352 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Add support for saturation instruction (ARMv6 or above).
The byte array clamping code has been updated accordingly.

Review URL: http://codereview.chromium.org/3036008/show

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5106 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

between single VFP registers.  Math.pow implementation has
been updated with the new instructions.  This is a commit
of http://codereview.chromium.org/2813046/show for Rodolph
Perfetta.


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5037 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

When calculating Math.pow where the exponent is a smi use a simple loop to calculate the result.

Added support for the vmov instruction moving from one doubleword extension register to another.

Added some Math.pow tests which partially covers what is in the Sputnik tests.
Review URL: http://codereview.chromium.org/2804033

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4990 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Added a few disassembler tests for vadd, vsub, vmul and vdiv.
Review URL: http://codereview.chromium.org/2823036

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4986 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

vsqrt is used to calculate Math.sqrt(x), Math.pow(x, 0.5) and Math.pow(x, -0.5). Code size doesn't matter, as %_MathSqrt and %_MathPow are only called in one place each.
Review URL: http://codereview.chromium.org/2885002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4974 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Zhang Kun.  For now we only emit movw and movt in places where no
relocation is needed.  Small performance boost (around 0.5%).
Also adds support for turning ALU operations (eor etc.) with
large immediates into mvn or movw followed by a register-based
ALU operation.
Review URL: http://codereview.chromium.org/2821014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4913 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

don't fit in the instruction.  Use ubfx and sbfx more.
Review URL: http://codereview.chromium.org/2826001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4855 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This is a commit of http://codereview.chromium.org/2124022
for Rodolph Perfetta.  I changed the test in
test-assembler-arm.cc so it only runs if ARMv7 is supported.


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4744 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The bkpt instruction is now supported by both the disassembler and the simulator. In the simulator it breaks to the native debugger if any like int3 on Intel.

Moved the handling of the miscellaneous instructions to a separate part.

Review URL: http://codereview.chromium.org/1576026


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4360 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

by using r10 to point to a list of common root objects.
This time we also disable a debugger test on ARM that
has never worked, but with this change sometimes
crashes.
Review URL: http://codereview.chromium.org/174317

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2744 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Original CL:

http://codereview.chromium.org/171041
Review URL: http://codereview.chromium.org/171089

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2702 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This cuts down on code size and reloc work.
Review URL: http://codereview.chromium.org/171041

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2701 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=olehougaard@chromium.org
Review URL: http://codereview.chromium.org/28115

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1366 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/8939

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@700 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fixed lint issue in platform-macos.

Review URL: http://codereview.chromium.org/1941

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@287 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Added presubmit step to check copyright.



git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@242 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

In the shell sample don't print the result of executing a script, only
evaluating expressions.

Fixed issue when building samples on Windows using a shared V8
library.  Added visibility option on Linux build which makes the
generated library 18% smaller.

Changed build system to accept multiple build modes in one build and
generate seperate objects, libraries and executables for each mode.

Removed deferred negation optimization (a * -b => -(a * b)) since this
visibly changes operand conversion order.

Improved parsing performance by introducing stack guard in preparsing.
Without a stack guard preparsing always bails out with stack overflow.


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16 ce2b1a6d-e550-0410-aec6-3dcde31c8c00