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619 Commits

Author SHA1 Message Date
rodolph.perfetta@gmail.com
762157d697 ARM: Implement memcpy using NEON. 
Add support for a few NEON and ARM SIMD instructions and use them for various
memcpy operations.

BUG=none
TEST=none

Review URL: https://chromiumcodereview.appspot.com/17858002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15602 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-10 15:32:39 +00:00
jkummerow@chromium.org
56ab3e3404 Import the v8-i18n extension into v8 
This adds the gyp flag v8_enable_i18n_support (off by default), and the
v8 flag FLAG_enable_i18n (on by default, but without effect if
v8_enable_i18n_support is off).

BUG=v8:2745
R=cira@chromium.org, danno@chromium.org, jkummerow@chromium.org

Review URL: https://codereview.chromium.org/18487004

Patch from Jochen Eisinger <jochen@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15464 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-03 11:22:29 +00:00
ulan@chromium.org
74d147a25d Enable weak embedded maps in optimized code. 
If the top optimized code in call stack is at the point that does not support
deoptimization, then treat the maps in the code as strong pointers.

Note that other optimized code in call stack must support deoptimization
because of the call instruction with side-effects.

BUG=217858,v8:2073
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16955008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15452 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-07-02 15:15:58 +00:00
mstarzinger@chromium.org
8b976da60e First simplistic implementation of escape analysis. 
R=jkummerow@chromium.org, titzer@chromium.org

Review URL: https://codereview.chromium.org/17914002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15393 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-28 16:09:54 +00:00
titzer@chromium.org
bfa9fe95dc Change PC for OSR entries to point to something more sensible (i.e. the first UnknownOsrValue), removing the need to record spilled OSR values and the need for duplicate deopt entries. 
Review URL: https://codereview.chromium.org/16381006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15331 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-26 08:43:27 +00:00
mvstanton@chromium.org
081134ecd1 Removed flag optimize-constructed-arrays. 
This eliminates a large amount of hand-written assembly in the platforms.

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

Review URL: https://codereview.chromium.org/16453002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15328 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-25 16:31:07 +00:00
mstarzinger@chromium.org
ea87d08557 Revert r14930 and r14935 temporarily. 
This is a temporary revert to track down a potential perf regression
introduced in r14930. The following two changes were reverted:
- "Deprecate HAllocateObject in favor of HAllocate."
- "Added pretenuring support for call new."

R=danno@chromium.org
BUG=chromium:247504

Review URL: https://codereview.chromium.org/17491002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15229 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-20 10:48:14 +00:00
mstarzinger@chromium.org
a527f451bc Deprecate old code aging mechanism. 
The old code aging mechanism is too agressive with flushing as it leads
to many functions being flushed and recompiled over and over again. By
now the new code aging mechanism has stabilized enough to deprecate the
old fallback mechanism.

R=danno@chromium.org

Review URL: https://codereview.chromium.org/17061004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15209 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-19 17:00:01 +00:00
yangguo@chromium.org
6e420a66be Tweak type info threshold. 
R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/17390004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15196 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-18 14:36:17 +00:00
yangguo@chromium.org
496af21047 Turn on parallel recompilation. 
R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/17394002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15193 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-18 13:06:22 +00:00
yangguo@chromium.org
af599c835d Increase default type info threshold. 
R=jkummerow@chromium.org
BUG=v8:2730

Review URL: https://chromiumcodereview.appspot.com/17074002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15157 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-14 14:15:05 +00:00
wingo@igalia.com
8f15c921ee Re-enable the harmony => harmony-generators implication after r15079. 
R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/16815002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15081 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-12 11:48:55 +00:00
wingo@igalia.com
5760c7b598 Disable --harmony -> --harmony-generators implication 
A GC-related bug has started showing up after r15060 that unfortunately
I haven't been able to reproduce.  Disable generators by default for the
Canary push.

R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/16638011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15065 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-11 14:45:17 +00:00
wingo@igalia.com
cb0d146862 Add initial parser support for harmony iteration 
This commit adds initial parser support for harmony iteration.
Specifically, it will parse:

  for (x of y) {}
  for (let x of y) {}
  for (var x of y) {}

The semantics are still unimplemented.

TEST=mjsunit/harmony/for-of-syntax
BUG=v8:2214
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/15300018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14984 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-06 14:38:26 +00:00
verwaest@chromium.org
16199c63d8 Initialized representations of computed values to None. 
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/14721009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14982 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-06 14:21:35 +00:00
jkummerow@chromium.org
20cedf9a4b Liveness analysis for environment slots in Hydrogen 
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/15533004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14938 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-04 16:41:24 +00:00
hpayer@chromium.org
599511d0c0 Added pretenuring support for call new. 
BUG=
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/16226012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14935 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-04 13:20:13 +00:00
mvstanton@chromium.org
3d3c6b1599 Special Array constructor type feedback erroneously recorded when Array 
was called as a function. Issue was found with optimize_constructed_array
turned on. This patch makes the fix, and turns the flag back on.

BUG=244461
R=danno@chromium.org

Review URL: https://codereview.chromium.org/16057005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14917 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-06-03 14:46:23 +00:00
jkummerow@chromium.org
cbdf760ef8 Disable --optimize-constructed-arrays due to crashes 
BUG=chromium:244461
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/15766005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14860 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-28 18:46:23 +00:00
svenpanne@chromium.org
7c0f77a4a5 Make (most of) --trace-codegen available in release mode. Better output. 
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/15941004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14796 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-24 10:57:59 +00:00
mvstanton@chromium.org
1a4482ab3f Missing type cell on ia32 from bindings. 
Javascript constructors called from C++ code didn't have a type cell
properly filled in on ia32. This showed up as a bug in webkit bindings.
Re-enabled flag optimize-constructed-arrays.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/15870002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14775 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-23 13:45:33 +00:00
hpayer@chromium.org
2cbc81a5ce Move global pretenuring flag check to ShouldGloballyPretenure(). 
BUG=

Review URL: https://codereview.chromium.org/15734007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14763 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-23 08:17:03 +00:00
mvstanton@chromium.org
239b2830cc Turning off optimize-constructed-arrays to investigate a WebKit/bindings issue. 
BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/15303002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14718 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-17 12:33:48 +00:00
mstarzinger@chromium.org
9df341d69f Put preservation of optimized code map behind a flag. 
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/15119004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14700 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-16 08:39:24 +00:00
mstarzinger@chromium.org
365b2eb91e Preserve optimized code map during GCs weakly. 
This change preserves the contents of optimized code maps during GCs but
treats the references in this cache weakly. It uses infrastructure from
code flushing to maintain a list of all caches.

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/14794007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14695 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-15 16:09:25 +00:00
mvstanton@chromium.org
31b8fc19c3 With flag optimize-constructed-arrays on, ARM and MIPS suffered a performance degrade due to incorrect code in GenerateRecordCallTarget(). 
The CL also enables flag optimize-constructed-arrays.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/14772043

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14692 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-15 15:17:01 +00:00
titzer@chromium.org
68eb1e50ca Improve dead code elimination by transitively marking live code and removing all dead code. Replace unreachable phi removal algorithm with the new dead code elimination pass, which is more thorough. 
Review URL: https://codereview.chromium.org/14676011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14661 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-14 13:10:52 +00:00
verwaest@chromium.org
df57747fc4 Track heap objects. 
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/14996004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14625 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-10 17:17:50 +00:00
verwaest@chromium.org
e40419d998 Turn on tracking of fields. 
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/14807006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14609 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-10 09:12:52 +00:00
verwaest@chromium.org
52008429b7 Use mutable heapnumbers to store doubles in fields. 
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/14850006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14597 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-08 15:02:08 +00:00
verwaest@chromium.org
4c2c665420 Turn off tracking of fields for the roll. 
Revert polymorphic stores suspect of crashes.

Revert "Turn on tracking of fields."
Revert "Turn polymorphic stores monomorphic if store sequence matches."
Revert "Fix polymorphic store."

R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/14812010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14593 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-08 14:18:30 +00:00
mvstanton@chromium.org
f5ad8e4469 Turn off optimize-constructed-arrays flag to investigate ARM perf issue 
BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/14753007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14588 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-08 08:49:29 +00:00
mvstanton@chromium.org
d7b013de57 Becuase of cross-context calls, hydrogen-based Array constructor needs to ensure 
the array constructor pointer passed in matches that of the current context.

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/14846017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14581 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-07 21:01:53 +00:00
dslomov@chromium.org
9b45b71d5a Added an extra flag that enables only ArrayBuffer. 
This makes Blink experimentation easier.

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/14884012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14560 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-06 16:19:27 +00:00
verwaest@chromium.org
ea282f079e Turn on tracking of fields. 
Review URL: https://chromiumcodereview.appspot.com/14771014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14541 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-05-03 11:05:54 +00:00
dslomov@chromium.org
1da21f1868 Revert "Flag optimize-constructed-arrays turned on." 
This reverts commit r14491.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14492 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-30 11:23:34 +00:00
mvstanton@chromium.org
ff57a1062b Flag optimize-constructed-arrays turned on. 
This routes array construction through a hydrogen stub, and enables use of
allocation site info tracking.

BUG=

Review URL: https://codereview.chromium.org/14616010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14490 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-30 08:22:05 +00:00
dslomov@chromium.org
7b1e7463f2 Remove __ prefix from Harmony typed arrays implementation 
R=rossberg@chromium.org
BUG=

Review URL: https://codereview.chromium.org/14402026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14477 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-29 11:18:27 +00:00
verwaest@chromium.org
99e17bb12a Track storage types of instance variables. 
Review URL: https://chromiumcodereview.appspot.com/14146005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14464 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-26 15:30:41 +00:00
yangguo@chromium.org
d1df0e631d Clean up VMState a little bit. 
R=svenpanne@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/14139033

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14421 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-24 14:44:08 +00:00
mstarzinger@chromium.org
3d84765fc2 Expose the GC under a name that is less collision prone than window.gc. 
This also keeps backwards compatibility (window.gc() still works).

BUG=2641

Review URL: https://codereview.chromium.org/14075012

Patch from Marja Hölttä <marja@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14397 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-23 16:30:51 +00:00
ulan@chromium.org
ff9ceebe2f Add a flag to deoptimize all functions every n garbage collections. 
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/14091013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14395 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-23 15:21:11 +00:00
rodolph.perfetta@gmail.com
caa37597ad ARM: Makefile/gyp update allowing better control of ARM specific options. 
This patch defines new makefile command line paramaters to better control the
ARM specific options. The new paramters are
 * armfpu      = vfp, vfpv3-d16, vfpv3, neon.
 * armfloatabi = softfp, hard
 * armneon     = on
 * armthumb    = on, off
 * armtest     = on
One existing paratemer has been modified:
 * armv7       = true, false
A number of parameters have been deprecated (but are still working):
 * hardfp      = on, off
 * vfp2        = off
 * vfp3        = off

the armtest paratmer when set to "on" will lock the options used during compile
time at runtime. This allows for example to easily test the ARMv6 build on an
ARMv7 platform without having to worry about features detected at runtime. When
not specified the compiler default will be used meaning it is not necessary
anymore to specify hardfp=on when natively building on an hardfp platform.

The shell help now prints the target options and features detected.

BUG=none
TEST=none

Review URL: https://chromiumcodereview.appspot.com/14263018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14288 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-16 14:39:48 +00:00
palfia@homejinni.com
ecfa9675a2 MIPS: Remove soft-float support. 
Port r14159 (0c64645)

Original commit message:
Remove ARM support for VFP2

BUG=

TEST=

Review URL: https://codereview.chromium.org/14113011
Patch from Dusan Milosavljevic <Dusan.Milosavljevic@rt-rk.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14275 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-16 11:33:02 +00:00
hpayer@chromium.org
acc4568aff Enable pretenuring of fast literals in high promotion mode. 
BUG=

Review URL: https://codereview.chromium.org/13952008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14248 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-12 09:45:46 +00:00
danno@chromium.org
008e73d6a0 Activate generation of Crankshafted KeyedStores 
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/13866005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14186 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-09 13:44:22 +00:00
yangguo@chromium.org
9f77ba9f1f Add an option to dump core when an uncaught exception is thrown. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/13071005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14185 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-09 11:31:10 +00:00
danno@chromium.org
ffe7f6a1ba Remove ARM support for VFP2 
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/13560007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14159 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-07 04:34:20 +00:00
mstarzinger@chromium.org
2816f19680 Add parser support for generators. 
This patchset begins by adding support for "yield", which is unlike other tokens
in JS. In a generator, whether strict or classic, it is a syntactic keyword.
In classic mode it is an identifier. In strict mode it is reserved.

This patch adds YIELD as a token to the scanner, and adapts the preparser and
parser appropriately. It also parses "function*", indicating that a function is
actually a generator, for both eagerly and lazily parsed functions.

Currently "yield" just compiles as "return".

BUG=v8:2355
TEST=mjsunit/harmony/generators-parsing

Review URL: https://codereview.chromium.org/12646003
Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14116 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-04-02 17:34:59 +00:00
dslomov@chromium.org
944c577c7b First steps towards implementing ArrayBuffer &co in V8 
BUG=

Review URL: https://codereview.chromium.org/13064003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14091 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-28 12:50:18 +00:00
ulan@chromium.org
ff3e79807e Disable weak embedded maps because of crashes. 
R=mstarzinger@chromium.org
BUG=172489,217858

Review URL: https://chromiumcodereview.appspot.com/12805006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14010 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-20 15:20:19 +00:00
danno@chromium.org
ffd0c712e8 Implement many KeyedStoreStubs using Crankshaft 
- Addition of a compiled hydrogen stub for KeyedStores.
- Inlining of "grow" stubs into OPTIMIZED_FUNCTIONs
- Addition of new "ignore OOB" ic stub that silently swallows out-of-bounds stores to external typed arrays.
- Addition of new "copy-on-write" ic stub that inlines allocation and copying operations for cow array
- New stub are generated with Crankshaft, so they are automatically inlined into OPTIMIZED_FUNCTIONs

Review URL: https://codereview.chromium.org/12221064

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14001 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-20 10:37:13 +00:00
hpayer@chromium.org
05a71fc9e4 Allow direct allocation in old pointer space. 
BUG=

Review URL: https://codereview.chromium.org/12314155

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13940 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-14 08:32:52 +00:00
yangguo@chromium.org
479e39a058 Parallel recompilation: remove interrupt for code generation. 
R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/12488006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13917 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-12 18:03:18 +00:00
yurys@chromium.org
250edbdc64 Revert "Send SIGPROF signals on the profiler event processor thread" 
This reverts commit r13735 as CPU profiler data is inaccurate after that change.

BUG=v8:2571

Review URL: https://codereview.chromium.org/12592002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13851 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-07 09:12:48 +00:00
yangguo@chromium.org
03375a68d7 Details wrt parallel recompilation. 
This includes:
- actually release handles kept by compilation info when compilation completes.
- do not use parallel recompilation on single core CPUs.
- artificially delay parallel recompilation for debugging.
- fix outdated assertions wrt optimization status.
- add "parallel" option to %OptimizeFunctionOnNextCall.

R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/12442002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13827 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-05 16:22:08 +00:00
mvstanton@chromium.org
c4caf766bf Allocation Info Tracking, continued. 
Addresses missing cases for array literals.
Adds support for "new Array()" call sites. This isn't complete yet, I have to run with --noinline_new.

BUG=

Review URL: https://codereview.chromium.org/11818021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13790 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-01 16:06:34 +00:00
rossberg@chromium.org
090d09d685 ES6 symbols: Implement Symbol intrinsic and basic functionality 
- Add --harmony-symbols flag.
- Add Symbol constructor; allow symbols as (unreplaced) return value from constructors.
- Introduce %CreateSymbol and %_IsSymbol natives and respective instructions.
- Extend 'typeof' code generation to handle symbols.
- Extend CompareIC with a UNIQUE_NAMES state that (uniformly) handles internalized strings and symbols.
- Property lookup delegates to SymbolDelegate object for symbols, which only carries the toString method.
- Extend Object.prototype.toString to recognise symbols.

Per the current draft spec, symbols are actually pseudo objects that are frozen with a null prototype and only one property (toString). For simplicity, we do not treat them as proper objects for now, although typeof will return "object". Only property access works as if they were (frozen) objects (via the internal delegate object).

(Baseline CL: https://codereview.chromium.org/12223071/)

R=mstarzinger@chromium.org
BUG=v8:2158

Review URL: https://codereview.chromium.org/12296026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13786 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-01 13:28:55 +00:00
hpayer@chromium.org
ddeaa4a3f2 Added system thread manager class. 
BUG=

Review URL: https://codereview.chromium.org/12207207

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13757 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-27 12:55:55 +00:00
hpayer@chromium.org
6f8f82235f Set default number of sweeper threads to two. 
BUG=

Review URL: https://codereview.chromium.org/12301020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13749 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-27 10:35:34 +00:00
yurys@chromium.org
dc9b817667 Send SIGPROF signals on the profiler event processor thread 
The patch is based on the previous one that was rolled out: https://code.google.com/p/v8/source/detail?r=12985

On Linux sampling for CPU profiler is initiated on the profiler event processor thread, other platforms to follow.

CPU profiler continues to use SamplingCircularQueue, we will replave it with a single sample buffer when Mac and Win ports support profiling on the event processing thread.

When --prof option is specified profiling is initiated either on the profiler event processor thread if CPU profiler is on or on the  SignalSender thread as it used to if no CPU profiles are being collected.

ProfilerEventsProcessor::ProcessEventsAndDoSample now waits in a tight loop, processing collected samples until sampling interval expires. To save CPU resources I'm planning to change that to use nanosleep as only one sample is expected in the queue at any point.

BUG=v8:2364

Review URL: https://codereview.chromium.org/12321046

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13735 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-26 16:15:32 +00:00
yangguo@chromium.org
0d63cef35b Constant fold math and string operations. 
R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/12315005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13705 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-21 11:40:37 +00:00
ulan@chromium.org
3a1eca4242 Remove prototype checks for leaf maps in optimized code. 
Review URL: https://chromiumcodereview.appspot.com/12225099

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13697 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-20 11:49:54 +00:00
ulan@chromium.org
417765cb08 Enable weak embedded maps in optimized code by default. 
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/12263031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13666 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-14 10:07:01 +00:00
hpayer@chromium.org
ae37a51334 Enable parallel sweeping. 
BUG=

Review URL: https://codereview.chromium.org/12255002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13650 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-13 09:23:30 +00:00
danno@chromium.org
a77daae9f8 Add additional flags to control array abuse tracing 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/12211095

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13632 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-08 14:32:38 +00:00
danno@chromium.org
9cb3a2e97d Add --trace-array-abuse to help find OOB accesses. 
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/12220040

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13613 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-07 07:56:11 +00:00
danno@chromium.org
940b65160a Add separate flag for --trace-stub-failures 
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/12208011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13598 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-05 16:28:36 +00:00
danno@chromium.org
0c3575c874 Generate the TransitionElementsStub using Crankshaft 
This includes:
* Adding support for saving callee-clobbered double registers in Crankshaft code.
* Adding a new "HTrapAllocationMemento" hydrogen instruction to handle AllocationSiteInfo data in crankshafted stubs.
* Adding a new "HAllocate" hydrogen instruction that can allocate raw memory from the GC in crankshafted code.
* Support for manipulation of the hole in HChange instructions for Crankshafted stubs.
* Utility routines to manually build loops and if statements containing hydrogen code.

Review URL: https://codereview.chromium.org/11659022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13585 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-04 12:01:59 +00:00
mmassi@chromium.org
3b8a61dcf3 Base iDef update code. 
Review URL: https://codereview.chromium.org/12079042

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13575 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-01 10:16:16 +00:00
hpayer@chromium.org
7fe9f3b05c Added parallel marking threads. 
BUG=

Review URL: https://codereview.chromium.org/12047044

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13569 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-31 14:23:36 +00:00
hpayer@chromium.org
44caabb1cd Parallel and concurrent sweeping. 
Sweep old pointer space and old data space concurrently to the main mutator thread and in parallel.

BUG=

Review URL: https://codereview.chromium.org/11782028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13552 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-30 12:19:32 +00:00
ulan@chromium.org
fe0582c262 Put making embedded maps in optimized code weak behind a flag. 
Disable the flag by default because of Chrome crashes.

BUG=172488,172489
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/12091018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13523 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-28 10:25:38 +00:00
ulan@chromium.org
bed569b548 ARM: Make use of d16-d31 when available. 
Review URL: https://chromiumcodereview.appspot.com/11428137
Patch from Hans Wennborg <hans@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13484 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-23 16:29:48 +00:00
jkummerow@chromium.org
b7079a5dfb Disable elimination of unreachable code after HSoftDeopts 
Review URL: https://codereview.chromium.org/12036011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13448 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-21 14:11:25 +00:00
mvstanton@chromium.org
7884216804 Additional work to get array literal allocation tracking working, even with --always-opt 
BUG=

Review URL: https://codereview.chromium.org/11817017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13406 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-17 08:41:27 +00:00
yangguo@chromium.org
5da9e75670 Remove support for Live Object List and inspector module. 
These were introduced in r7012 and r6379.
The reason for this is that both features are not being maintained.
They have been out-of-date for a while.  Test cases do not exist.

R=mstarzinger@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11975012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13404 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-16 15:44:26 +00:00
mvstanton@chromium.org
529f801fde Adapt Danno's Track Allocation Info idea to fast literals. When allocating a literal array, 
we store an AllocationSiteInfo object right after the JSArray, with a pointer to the
boilerplate object. Later, if the array transitions we check for the continued existence
of the temporary AllocationSiteInfo object (has no roots). If found, we'll use it to
transition the boilerplate array as well.

Danno's original changeset: https://codereview.chromium.org/10615002/

Review URL: https://codereview.chromium.org/11663005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13330 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-08 09:03:16 +00:00
ulan@chromium.org
a7f9c491dc Use VLDR instead of VMOVs from GPR when a 64-bit double can't be encoded as a VMOV immediate. 
This requires constant blinding before it can be enabled. There are other interesting optimizations that can be added later, detailed in a TODO.

BUG=optimization
R=ulan@chromium.org,mstarzinger@chromium.org, hwennborg@google.com

Review URL: https://chromiumcodereview.appspot.com/11191029
Patch from JF Bastien <jfb@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13286 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-28 13:34:15 +00:00
svenpanne@chromium.org
608bce5023 Remove SlidingStateWindow and related code. 
Review URL: https://codereview.chromium.org/11441034

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13172 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-07 13:47:42 +00:00
svenpanne@chromium.org
17def81fc9 Use count-based profiling exclusively. 
Review URL: https://codereview.chromium.org/11437016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13158 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-07 08:55:06 +00:00
yangguo@chromium.org
424a492dde Take instrumentation overhead into account when plotting. 
R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11348298

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13146 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-05 16:22:14 +00:00
danno@chromium.org
9598ccd851 Remove extraneous forced rejuvenations in code aging 
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/11421219

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13125 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-04 08:58:59 +00:00
danno@chromium.org
2bb49cb1e2 Deactive code aging due to regressions 
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/11415282

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13124 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-04 08:16:24 +00:00
mstarzinger@chromium.org
06038fb6a5 Activate incremental code flushing by default. 
R=danno@chromium.org

Review URL: https://codereview.chromium.org/11418288

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13112 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-03 13:39:21 +00:00
jkummerow@chromium.org
bd69d3d5c3 Revert "Perform CPU sampling by CPU sampling thread only iff processing thread is not running." 
This reverts r12985.

Review URL: https://codereview.chromium.org/11428103

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13104 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-30 10:26:21 +00:00
svenpanne@chromium.org
499ad291be Activate code aging by default. 
Review URL: https://codereview.chromium.org/11411257

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13094 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-29 14:31:38 +00:00
jkummerow@chromium.org
79563b22c9 Faster implementation of Math.exp() 
Review URL: https://codereview.chromium.org/11418149

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13054 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-26 13:12:35 +00:00
yangguo@chromium.org
72db2287c3 Add parallel recompilation time to histogram and plot execution pause times. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11412125

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13036 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-22 13:04:11 +00:00
mstarzinger@chromium.org
1f71c3c34e Enable marking progress bar for large objects by default. 
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/11416072

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13005 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-19 17:23:58 +00:00
yangguo@chromium.org
63f109aaa5 Introduce helper functions to test parallel recompilation. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11419012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12986 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-16 10:57:50 +00:00
jkummerow@chromium.org
7f824867f6 Perform CPU sampling by CPU sampling thread only iff processing thread is not running. 
- perform CPU profiler sampling in the sampler thread as we used to;
- skip sampling in the sampling thread if processing thread is running;
- only install SIGPROF handler when CPU profiling is enabled.

BUG=v8:2364

Review URL: https://codereview.chromium.org/11231002
Patch from Sergey Rogulenko <rogulenko@google.com> and Andrey Kosyakov <caseq@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12985 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-16 10:38:10 +00:00
mstarzinger@chromium.org
5dec1423a4 Implement progress bar for large objects. 
This implements incremental scanning of large objects using a progress
bar in the page header of such objects. Note that this requires forward
white to gray transitions in the write barrier and hence is disabled by
default for now.

R=ulan@chromium.org,hpayer@chromium.org

Review URL: https://codereview.chromium.org/11362246

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12978 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-15 17:57:40 +00:00
danno@chromium.org
92c6fe5c91 Disable code aging due to bugs. 
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/11361182

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12919 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-09 13:04:51 +00:00
danno@chromium.org
cc1d08bf33 Active code aging by default. 
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/11293178

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12906 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-08 17:31:45 +00:00
danno@chromium.org
bd4e114b8e Add code again to allow reclaiming old unexecuted functions. 
When code objects in the heap for FUNCTIONs and OPTIMIZED_FUNCTIONs are marked by the GC, their prologue is patched with a call to a stub that removes the patch. This allows the collector to quickly identify code objects that haven't been executed since the last full collection (they are the ones that sill contain the patch). The functionality is currently disabled, but can be activated by specifying the "--age-code".

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/10837037

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12898 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-08 12:18:11 +00:00
rossberg@chromium.org
b80cbd7922 Object.observe: generate change records for named properties. 
In more detail:
- Set observation bit for observed objects (and make NormalizedMapCache respect it).
- Mutation of observed objects is always delegated from ICs to runtime.
- Introduce JS runtime function for notifying generated changes.
- Invoke this function in the appropriate places (including some local refactoring).
- Inclusion of oldValue field is not yet implemented, nor element properties.

Also, shortened flag to --harmony-observation.

R=verwaest@chromium.org
BUG=

Review URL: https://codereview.chromium.org/11347037

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12867 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-06 12:32:36 +00:00
mstarzinger@chromium.org
03ba764f3e Put incremental code flushing behind a flag. 
This is used to disable incremental code flushing by default for now
until we can stabilize it and make it ready for production.

R=verwaest@chromium.org
BUG=chromium:159140

Review URL: https://codereview.chromium.org/11367105

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12862 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-06 11:54:05 +00:00
rossberg@chromium.org
cd9029a502 Initial JS stub implementation of Object.observe. Adds support for .object/.unobserve/.notify/.deliverChangeRecords. No delivery mechanism is implemented for end-of-microtask. 
Review URL: https://codereview.chromium.org/11225058
Patch from Rafael Weinstein <rafaelw@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12819 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-25 14:53:26 +00:00
danno@chromium.org
43e248d2e5 Use movw/movt instead of constant pool on ARMv7. 
Some ARM architectures load 32-bit immediate constants more efficiently using movw/movt pairs rather than constant pool loads. This patch allows the assembler to generate one or the other load form at runtime depending on what is faster.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/11037023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12755 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-18 12:21:42 +00:00
jkummerow@chromium.org
62223bd2c0 Revert recent CPU profiler changes because they broke --prof. 
This reverts r12649 and r12650.

BUG=v8:2364

Review URL: https://codereview.chromium.org/11193020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12745 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-17 12:24:31 +00:00
ulan@chromium.org
86eedc26b5 Allow unaligned accesses for ARMv7. 
R=mstarzinger@chromium.org,jfb@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11087047

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12735 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-15 15:19:36 +00:00
mvstanton@chromium.org
b3c0ed8245 Enable --verify-heap in release mode 
R=mstarzinger@chromium.org
BUG=v8:2120

Review URL: https://codereview.chromium.org/11118018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12713 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-12 11:41:14 +00:00
svenpanne@chromium.org
f03fd70d9e Added a simple dead code removal phase. 
We iteratively remove all dead Hydrogen instruction until we reach a fixed point. We consider an instruction dead if it is unused, has no observable side effects and is deletable. The last part of the condition is currently not very nice: We basically have to whitelist "safe" instructions, because we are missing more detailed dependencies and/or more detailed tracking of side effects.

We disable dead code elimination for now in our test runners, because we have tons of poorly written tests which wouldn't test anymore what they are supposed to test with this phase enabled. To get test coverage for dead code elimination itself, we should enable it on a few build bots. This is not really a perfect state, but the best we can do for now.

This patch includes a few const-correctness fixes, most of them were necessary for this CL.

Review URL: https://codereview.chromium.org/11088027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12697 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-11 10:52:58 +00:00
jkummerow@chromium.org
dfb4218a04 Moving cpu profiling into its own thread. 
BUG=None

Review URL: https://codereview.chromium.org/10857035
Patch from Sergey Rogulenko <rogulenko@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12649 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-02 09:58:11 +00:00
danno@chromium.org
08747c3a16 Support for SDIV and MLS ARM instructions, and implement DoModI using them. 
Also added support for the runtime detection to check if hardware supports SDIV/UDIV
Other new opportunities to exploit SDIV/UDIV will be done in separate issues.

Review URL: https://chromiumcodereview.appspot.com/10977051
Patch from Subrato K De <subratokde@codeaurora.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12646 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-10-01 21:27:33 +00:00
erik.corry@gmail.com
ee55b2c2d3 Switch on code compaction on incremental GCs. 
Review URL: https://chromiumcodereview.appspot.com/10928203

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12506 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-14 11:38:45 +00:00
mmassi@chromium.org
22aed1cddd Fixed bounds check removal by restricting it to int32 indexes (and reenabled both ABCR and index dehoisting). 
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10905232

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12493 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-12 17:00:25 +00:00
erik.corry@gmail.com
1987542825 Fix invariant so that we cannot record relocation slots for 
white objects when compacting.  Add flag for incremental code
compaction.
Review URL: https://chromiumcodereview.appspot.com/10907174

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12483 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-11 14:01:39 +00:00
svenpanne@chromium.org
7af6883098 Fixed deoptimization of inlined getters. 
It is necessary to explicitly handle the internal frame lying between the caller
of the getter and the getter itself in the deoptimizer: When the getter is
inlined, leaving the internal frame restores the correct context.

BUG=http://crbug/134609
TEST=mjsunit/regress/regress-crbug-134609

Review URL: https://chromiumcodereview.appspot.com/10910110

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12470 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-07 09:01:54 +00:00
ulan@chromium.org
6df4bcfecf Add support for running low level profiler on Android. 
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10908122

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12469 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-06 15:01:20 +00:00
jkummerow@chromium.org
c2fedcc344 Disable accessor inlining (due to broken deopts) 
BUG=134609

Review URL: https://chromiumcodereview.appspot.com/10908093

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12444 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-09-05 16:06:07 +00:00
rossberg@chromium.org
40f44b1d4f Activate fixed ES5 readonly semantics by default. 
R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10912042

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12415 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-31 09:12:31 +00:00
yangguo@chromium.org
d3dca2adb0 Disable array bounds checks elimination. 
R=svenpanne@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/10895002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12392 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-28 07:39:45 +00:00
svenpanne@chromium.org
f6f4798189 Print reason for disabling optimization. Kill --trace-bailout flag. 
The reason for disabling optimization of a given function is carried around in
CompilationInfo. The new mechanism is general enough that --trace-opt now
subsumes everything --trace-bailout could print, so we nuked the latter flag.

Review URL: https://chromiumcodereview.appspot.com/10868106

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12391 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-28 07:18:06 +00:00
vegorov@chromium.org
f476d4d431 Allow uint32 value on optimized frames if they are consumed by safe operations. 
Safe operations are those that either do not observe unsignedness or have special support for uint32 values:

- all binary bitwise operations: they perform ToInt32 on inputs;
- >> and << shifts: they perform ToInt32 on left hand side and ToUint32 on right hand side;
- >>> shift: it performs ToUint32 on both inputs;
- stores to integer external arrays (not pixel, float or double ones): these stores are "bitwise";
- HChange: special support added for conversions of uint32 values to double and tagged values;
- HSimulate: special support added for deoptimization with uint32 values in registers and stack slots;
- HPhi: phis that have only safe uses and only uint32 operands are uint32 themselves.

BUG=v8:2097
TEST=test/mjsunit/compiler/uint32.js

Review URL: https://chromiumcodereview.appspot.com/10778029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12367 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-22 15:44:17 +00:00
ulan@chromium.org
bac8e56f8d Fix test failures introduced by r12342. 
Add missing context disposed notifications in test-api.
Move send-idle-notification flag to d8 options so that it is available in d8
when v8 is build as a shared libarary.

R=yangguo@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10834405

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12343 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-20 13:19:52 +00:00
svenpanne@chromium.org
b10d5d7f08 Deoptimization support for accessors. 
Highlights of this CL:

 * Introduced a new opcode in the deoptimizer for a setter stub frame.

 * Added a global setter stub for returning after deoptimizing a setter.

 * We do not need special deopt support for getters, although the getter stub creates an internal frame. The normal machinery works just right for this case, although we generate a stack that can never occur during normal fullcode execution. If this hurts us one day, we can parameterize and reuse the setter deopt machinery.

Review URL: https://chromiumcodereview.appspot.com/10855098

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12328 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-17 10:43:32 +00:00
rossberg@chromium.org
42552808ab Rename "global context" to "native context", 
in anticipation of the upcoming lexical global scope.

Mostly automatised as:

for FILE in `egrep -ril "global[ _]?context" src test/cctest`
do
  echo $FILE
  sed "s/Global context/Native context/g" <$FILE >$FILE.0
  sed "s/global context/native context/g" <$FILE.0 >$FILE.1
  sed "s/global_context/native_context/g" <$FILE.1 >$FILE.2
  sed "s/GLOBAL_CONTEXT/NATIVE_CONTEXT/g" <$FILE.2 >$FILE.3
  sed "s/GlobalContext/NativeContext/g" <$FILE.3 >$FILE
  rm $FILE.[0-9]
done

R=mstarzinger@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10832342

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12325 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-17 09:03:08 +00:00
svenpanne@chromium.org
018670f2e4 Change the maximum optimization count into a commandline flag. 
This is needed for some unit tests, which otherwise do not test what people
think they do. ;-)

Review URL: https://chromiumcodereview.appspot.com/10823362

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12318 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-16 11:40:03 +00:00
erik.corry@gmail.com
c3ef910b86 Disable array index dehoisting due to stability issues. 
Review URL: https://chromiumcodereview.appspot.com/10834303

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12305 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-14 09:22:34 +00:00
erik.corry@gmail.com
8d30a964d8 Revert inadvertent commit of testing change to flag-definitions.h 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12288 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-10 12:26:21 +00:00
erik.corry@gmail.com
a9f5f3d6f5 Fix the full compiler on ARM to always generate the same code 
regardless of the detected CPU.  This is a requirement for the
debugger and the deoptimizer, which both expect that code from
the snapshot (compiled without VFP and ARM7) should have the
same layout as code compiled later.

This is another change to make snapshots more robust with
arbitrary code.
Review URL: https://chromiumcodereview.appspot.com/10824235

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12287 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-10 12:24:06 +00:00
ulan@chromium.org
fb7345cdfd Add flag to trace the amount of external memory. 
R=yangguo@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10824196

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12269 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-07 14:17:35 +00:00
ulan@chromium.org
b4fd9de1f0 Adjust GC tracing: add a flag to ignore scavenger traces and print total GC time in verbose mode. 
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10536147

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12267 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-08-07 08:19:11 +00:00
mstarzinger@chromium.org
76fe67b092 Implement verification of context separation. 
This adds the --verify-global-context-separation flag which can be used
to verify that no code object embeds pointers to more than one global
context after a full GC. It uses an object visitor that just performs
shallow traversal of the object graph spanned by one code object, and
breaks at points where application objects are encountered. So it will
not trip on cross-context leaks introduced by the application itself.

R=verwaest@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10830049

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12224 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-07-30 10:47:04 +00:00
svenpanne@chromium.org
cb4840c0e5 Inline simple getter calls. 
Currently only simple getter calls are handled (i.e. no calls in count
operations or compound assignments), and deoptimization in the getter is not
handled at all. Because of the latter, we temporarily hide this feature behind a
new flag --inline-accessors, which is false by default.

Review URL: https://chromiumcodereview.appspot.com/10828066

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12223 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-07-30 10:42:21 +00:00
mmassi@chromium.org
3eb1df6580 Re-enable array index dehoisting. 
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10826031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12203 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-07-26 14:21:40 +00:00
yangguo@chromium.org
59f212e7eb Relax requirement from VFP3 to VFP2 where possible. 
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10818026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12194 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-07-25 15:26:16 +00:00
danno@chromium.org
f793c77058 Reactivate packed array optimizations by default 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10796088

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12176 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-07-23 15:01:25 +00:00
sanjoy@chromium.org
693c7643d2 Optimize functions on a second thread. 
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10807024

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12148 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-07-19 18:58:23 +00:00
mstarzinger@chromium.org
6d552f09d1 Add --trace-parse flag to parser. 
R=yangguo@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10802012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12120 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-07-18 11:22:46 +00:00
svenpanne@chromium.org
a344ee21a7 Deactivate optimization of packed arrays. 
It breaks the San Angeles WebGL demo.

BUG=http://code.google.com/p/chromium/issues/detail?id=137768
TEST=https://cvs.khronos.org/svn/repos/registry/trunk/public/webgl/sdk/demos/google/san-angeles/index.html

Review URL: https://chromiumcodereview.appspot.com/10806008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12116 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-07-18 10:41:03 +00:00
danno@chromium.org
aae81e125b Add counters that automatically track object sizes and counts. 
Review URL: https://chromiumcodereview.appspot.com/10702168

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12082 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-07-13 12:22:09 +00:00
rossberg@chromium.org
dcf83a2114 Turn off es5_readonly again: still causes ~370 WebKit regressions. 
R=mstarzinger@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10693145

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12041 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-07-11 14:09:42 +00:00
rossberg@chromium.org
2ce9624d89 Turn on es5[2] features by default. 
R=mstarzinger@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10689156

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12038 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-07-11 09:39:44 +00:00
mmassi@chromium.org
c74871f37b Fixed array bounds check elimination (Chromium issue 132114). 
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10698125

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12025 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-07-10 11:01:29 +00:00
mmassi@chromium.org
f1fec84711 Disable array bounds check removal. 
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10703115

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12016 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-07-09 13:25:29 +00:00
mmassi@chromium.org
41370d2b70 Restored removed flag. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12015 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-07-09 12:06:07 +00:00
mmassi@chromium.org
5f9e5980ee Re-enable array bounds check elimination. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12014 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-07-09 12:05:58 +00:00
danno@chromium.org
d030121458 Activate optimization of packed arrays by default 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10695055

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11961 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-07-02 09:50:53 +00:00
mstarzinger@chromium.org
84b866b2d9 Fix sharing of literal boilerplates for optimized code. 
This makes sure the literal boilerplates array is correctly shared
together with optimized code when caching of optimized code is enabled.
It also enabled said caching by default again.

R=ulan@chromium.org
BUG=v8:2193
TEST=mjsunit/regress/regress-2193

Review URL: https://chromiumcodereview.appspot.com/10649008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11911 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-06-22 13:55:15 +00:00
yangguo@chromium.org
a28c919c7b Disable --cache-optimized-code by default. 
R=mstarzinger@chromium.org
BUG=v8:2193
TEST=

Review URL: https://chromiumcodereview.appspot.com/10626015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11905 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-06-22 12:21:18 +00:00
erikcorry
458e87fd05 Snapshots: Add --extra-code flag to mksnapshot which lets you specify a file 
with more JS code that is loaded into the VM before writing the snapshot.  Get
rid of the hard coded limit on the partial snapshot cache size.  This change
disables most of the serializer tests for the snapshot build of the VM: It's
getting too complicated to support both booting from a snapshot and then
creating a new snapshot from the same VM or loading more code with another
snapshot in the same VM.
Review URL: http://codereview.chromium.org/10574013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11871 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-06-19 18:38:03 +00:00
fschneider@chromium.org
bb0a2ea766 Share optimized code for closures. 
Each SharedFunctionInfo gets an optimized code map to store
one optimized code object per context. When allocating a new
closure we consult this map and check if there is optimized code
that can be shared.

This patch is based on an original patch
by Anton Muhin (http://codereview.chromium.org/6793013/).

BUG=v8:2087, v8:2094
TEST=test/mjsunit/compiler/optimized-closures.js
Review URL: https://chromiumcodereview.appspot.com/10103035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11817 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-06-14 14:06:22 +00:00
erik.corry@gmail.com
539084c242 Revert r11778 "Activate packed array optimizations by default" due to mjsunit test failures on ARM. 
TBR=danno
Review URL: https://chromiumcodereview.appspot.com/10550002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11786 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-06-12 22:34:13 +00:00
danno@chromium.org
d20af8417b Activate packed array optimizations by default 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10546123

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11778 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-06-12 15:38:57 +00:00
yangguo@chromium.org
8d07c7ff0d Disable array bounds checks elimination by default. 
BUG=132114
TEST=

Review URL: https://chromiumcodereview.appspot.com/10532107

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11775 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-06-12 15:22:21 +00:00
rossberg@chromium.org
c13dd2ece6 Put inherited readonliness behind a flag, 
since it currently breaks WebKit bindings massively.

R=mstarzinger@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10535007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11714 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-06-05 12:39:07 +00:00
svenpanne@chromium.org
0fa7de11b5 Enable map transitions for accessor properties. 
To avoid a performance regression for context creation with snapshots, we avoid
creating a useless long map chain for regular expressions, keeping the snapshot
size almost the same as before.

Review URL: https://chromiumcodereview.appspot.com/10440045

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11664 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-05-25 12:32:02 +00:00
svenpanne@chromium.org
ff216c9cea Re-land: Use map transitions when defining accessor properties. 
This is basically r11496, with the following changes:

 * Set back pointers in maps (cherry-picked from r11528)

 * Fixed size calculation in CopyInsert, as proposed by mstarzinger/rossberg

 * DefineFastAccessor uses GetCallbackObject instead of GetValue (for __proto__)

 * Put the code under a new flag, which is disabled by default

 * Cut down the corresponding regression test

 * Adapted bootup memory test, we actually only need a bit more memory on 64bit without snapshots, which can easily explained by more live maps lying around. Note that the snapshot variants are back to their previous limits.

Next steps: Investigate any performance degradationswith the flag enabled, and finally remove the flag when things are OK. Furthermore, GetCallbackObject should be merged into GetValue, the distinction is confusing and error-prone.

Review URL: https://chromiumcodereview.appspot.com/10445009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11651 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-05-24 10:40:24 +00:00
danno@chromium.org
9910edbb9a Implement tracking and optimizations of packed arrays 
R=jkummerow@chromium.org
TEST=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10170030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11636 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-05-23 14:24:29 +00:00
mmassi@chromium.org
3fad332049 Disable array index dehoisting because of performance regressions on Kraken imaging-desaturate. 
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10383269

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11616 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-05-21 16:22:54 +00:00
mmassi@chromium.org
2fd1e1bbc2 Array index computation dehoisting. 
When an array index (in an array access) is a simple "expression + constant", just embed the constant in the array access operation so that the full index expression is (potentially) no longer used and its live range can be much shorter.
This is effective in conjunction with array bounds check removal (otherwise the index is anyway used in the check).

Review URL: https://chromiumcodereview.appspot.com/10382055

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11596 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-05-21 07:59:50 +00:00
rossberg@chromium.org
a662a25469 Revert flag change for global semantics. 
(Still breaks a couple of WebKit tests.)

R=mstarzinger@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10381147

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11557 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-05-15 09:01:06 +00:00
rossberg@chromium.org
102de8e2ca Activate new global semantics by default. 
R=mstarzinger@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10383085

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11536 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-05-10 10:35:42 +00:00
mmassi@chromium.org
93113da5a2 Eliminate redundant array bound checks (checks already performed earlier in the DT). 
As a special case, for checks on index expressions with the form (expr + constant) if a smaller constant is checked later in the DT also eliminate the check.
Finally, if a larger constant is checked later in the same BB do the more general check (larger constant) earlier instead of the less general one.
This will not cause useless deoptimizations because, since we are in the same BB, all the checks would have been executed anyway.
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10032029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11437 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-25 14:32:27 +00:00
rossberg@chromium.org
c8aea7a184 Put new global var semantics behind a flag until WebKit tests are cleaned up. 
R=mstarzinger@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10163003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11402 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-20 13:35:09 +00:00
svenpanne@chromium.org
cac8bbff6e Replaced the --limit-inling flag by three separate flags and bumped hard limits. 
This change makes experiments with inlining limits much easier. Note that the
default values for the limits keep their old values for now. Renamed things a
bit for more consistency.

Review URL: https://chromiumcodereview.appspot.com/10162001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11397 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-20 10:42:12 +00:00
danno@chromium.org
ed5d288ac1 Adjust stack limit again to avoid overflow on 64 bit windows 
Also add additional stack check.

R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10006010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11238 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-05 14:01:39 +00:00
danno@chromium.org
3c6f5774d2 Fix stack overflows on Windows x64. 
R=mstarzinger@chromium.org
TEST=win 64 not red anymore

Review URL: https://chromiumcodereview.appspot.com/10008005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11236 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-05 12:32:35 +00:00
ulan@chromium.org
0b6a617779 Age inline caches after context disposal. 
Review URL: https://chromiumcodereview.appspot.com/9837005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11122 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-23 13:33:11 +00:00
jkummerow@chromium.org
5d6763aaba Enable experimental profiler by default 
Review URL: https://chromiumcodereview.appspot.com/9726004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11089 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-19 17:29:25 +00:00
fschneider@chromium.org
1c99c90be7 Re-enable constructor inlining and inline === comparison with boolean constants. 
This change reverts r10974 which disabled those two optimizations.
They were not responsible for the problem in earley-boyer.

BUG=v8:2009
Review URL: https://chromiumcodereview.appspot.com/9699117

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11076 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-19 07:51:37 +00:00
danno@chromium.org
6e1f8780f9 Add flag to always call DebugBreak on abort 
R=vegorov@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9706097

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11068 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-16 13:43:04 +00:00
fschneider@chromium.org
35786621f2 Change --hydrogen-filter to allow specifying a negative filter for optimized functions. 
When prepending a '-' to the function name, the function will not be optimized.

--hydrogen-filter=foo works as before.

--hydrogen-filter=-foo means don't optimize foo.
Review URL: https://chromiumcodereview.appspot.com/9691042

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11036 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-14 09:45:17 +00:00
yangguo@chromium.org
235e9e20a7 Experimental Profiler: tweak type info threshold. 
Also included: simplify String.slice.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9694033

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11021 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-13 11:38:37 +00:00
fschneider@chromium.org
1f7d42efc9 Landing for pliard@chromium.org: Remove static initializers in v8. 
This change includes two CLs by pliard@chromium.org:

1. http://codereview.chromium.org/9447052/ (Add CallOnce() and simple LazyInstance implementation):

Note that this implementation of LazyInstance does not handle global destructors (i.e. the lazy instances are never deleted).

This CL was initially reviewed on codereview.appspot.com:
http://codereview.appspot.com/5687064/



2.  http://codereview.chromium.org/9455088/ (Remove static initializers in v8):
This CL depends on CL 9447052 (adding CallOnce and LazyInstance).
It is based on a patch sent by Digit.

With this patch applied, we have only one static initializer left (in atomicops_internals_x86_gcc.cc). This static initializer populates a structure used by x86 atomic operations. It seems that we can hardly remove it. If possible, it will be removed in a next CL. 

This CL also modifies the presubmit script to check the number of static initializers.


BUG=v8:1859
Review URL: https://chromiumcodereview.appspot.com/9666052

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11010 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-12 13:56:56 +00:00
vegorov@chromium.org
da03f56b1f Inline functions that use arguments object in f.apply(o, arguments) pattern. 
Support arguments materialization after deoptimization in all frames (not only in topmost one).

R=fschneider@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9643001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11008 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-12 12:49:41 +00:00
jkummerow@chromium.org
efee39a075 Profiler experiments: update flag default values. 
This doesn't enable the experimental profiler by default, it just tunes its behavior when it is enabled.

Review URL: https://chromiumcodereview.appspot.com/9668009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10992 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-09 17:55:54 +00:00
jkummerow@chromium.org
1d4221a4d3 Profiler experiments: merge self-optimization code into interrupt-at-exit 
Review URL: https://chromiumcodereview.appspot.com/9633012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10991 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-09 16:23:06 +00:00
ulan@chromium.org
e6576f0938 Revert r10435 and r10923 because of failures. 
r10435 CL: http://codereview.chromium.org/9195005
r10923 CL: https://chromiumcodereview.appspot.com/9601010

R=fschneider@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9653025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10974 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-09 09:04:39 +00:00
rossberg@chromium.org
448b620dad Basic interface inference for modules. 
All module expressions, and all variables that might refer to modules,
are assigned interfaces (module types) that are resolved using
unification. This is necessary to deal with the highly recursive
nature of ES6 modules, which does not allow any kind of bottom-up
strategy for resolving module names and paths.

Error messages are rudimental right now. Probably need to track
more information to make them nicer.

R=svenpanne@chromium.org
BUG=v8:1569
TEST=

Review URL: https://chromiumcodereview.appspot.com/9615009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10966 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-08 13:03:07 +00:00
mstarzinger@chromium.org
c113ea7cf8 Enable constructor inlining by default again. 
R=vegorov@chromium.org
TEST=mjsunit/compiler/inline-construct

Review URL: https://chromiumcodereview.appspot.com/9601010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10923 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-05 14:20:58 +00:00
vegorov@chromium.org
f416a684b2 Disable constructor inlining. 
There are failures on Kraken.

R=fschneider@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9585011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10903 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-02 12:50:42 +00:00
mstarzinger@chromium.org
1009e414b6 MIPS: Implement inlined object allocation in Crankshaft. 
Port r10881 (0d25c61e).

Original commit message:

Generates inlined code for object allocation specific to the initial map
of the given constructor function. Also forces completion of inobject
slack tracking while crankshafting to finalize instance size of these
objects.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9569008
Patch from Daniel Kalmar <kalmard@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10890 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-01 12:38:58 +00:00
fschneider@chromium.org
a8980079a0 Add flag --trace-phase to selectively produce IR trace output. 
By default --trace-hydrogen only generates the final IR (before
code generation). The other phases can be printed by specifying
them by their first letter. Currently H=HIR, L=LIR or Z=final IR (default)
are recognized.
Review URL: https://chromiumcodereview.appspot.com/9535009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10882 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-01 11:33:37 +00:00
erik.corry@gmail.com
9f375ea880 Fix secondary stub cache and add a test for the stub cache lookups. 
Review URL: https://chromiumcodereview.appspot.com/9496010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10864 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-29 10:45:59 +00:00
mstarzinger@chromium.org
fb8eb04bfd Implement inlining of constructor calls. 
R=vegorov@chromium.org,kmillikin@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9304001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10849 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-28 09:05:55 +00:00
vegorov@chromium.org
9b55ebaa3a When compiling for-in pass correct context value to the increment instruction. 
Additionally force increment instruction to use int32 representation.

R=fschneider@google.com
BUG=http://crbug.com/115646
TEST=test/mjsunit/compiler/optimized-for-in.js

Review URL: https://chromiumcodereview.appspot.com/9463052

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10844 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-27 14:37:27 +00:00
vegorov@chromium.org
53622335e3 Disable for-in support in Crankshaft while crashes and regressions are being investigated. 
R=yangguo@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9463049

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10838 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-27 10:43:57 +00:00
jkummerow@chromium.org
75bf5e44d2 Profiler experiments: interrupt check at function exit 
Review URL: https://chromiumcodereview.appspot.com/9432026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10795 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-22 15:18:29 +00:00
rossberg@chromium.org
958b3bf470 Parsing of basic module declarations (no imports/exports yet). 
Module definitions are not compiled or otherwise executed yet.
Toplevel module identifiers are bound but never initialized.

R=kmillikin@chromium.org,mstarzinger@google.com
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9401008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10759 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-20 14:02:59 +00:00
rossberg@chromium.org
1336b913d0 Make built-ins strict mode conforming, and support a --use-strict flag. 
* Turned all uses of 'const' into 'var'.
* Turned all uses of local 'function' into 'var'.
* Added a couple of missing toplevel 'var' declarations.

One consequence is that the properties on the builtin object  are no longer
non-writable, and I had to adapt one test. Is that a problem?

Unfortunately, we cannot actually switch the library scripts to strict mode
by default, because that makes observable things like poisoned .caller properties
for library functions.

Also removed dead flag code in Compiler::Compile.

R=yangguo@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9415010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10758 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-20 13:48:24 +00:00
jkummerow@chromium.org
0177aa62da Count ICs that have type information. 
Hidden behind --type-info-threshold=X flag, usage dependent on experimental profiler.

Review URL: https://chromiumcodereview.appspot.com/9403009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10753 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-20 12:57:23 +00:00
danno@chromium.org
6f7d9d2312 Enable smi_only_arrays by default. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9414007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10732 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-16 15:47:36 +00:00
jkummerow@chromium.org
866e0eeeb7 Small update to experimental profiler flags 
Review URL: https://chromiumcodereview.appspot.com/9360041

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10701 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-14 14:28:37 +00:00
jkummerow@chromium.org
4233bf8348 Initial support for count-based profiling 
(behind FLAG_count_based_interrupts; only on ia32)

Review URL: https://chromiumcodereview.appspot.com/9373028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10699 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-14 14:00:31 +00:00
jkummerow@chromium.org
de510c3a58 Split experimental profiler flags 
Review URL: https://chromiumcodereview.appspot.com/9374015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10660 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-09 13:30:01 +00:00
jkummerow@chromium.org
aa2e842134 Count-based profiling for primitive functions (hidden behind a flag) 
Review URL: https://chromiumcodereview.appspot.com/9361026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10657 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-09 10:19:46 +00:00
vegorov@chromium.org
96baf602df Ensure that regexp code flushing correctly updates slots buffer. 
Enable code compaction again.

R=erik.corry@gmail.com

Review URL: https://chromiumcodereview.appspot.com/9365019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10647 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-08 15:44:07 +00:00
erik.corry@gmail.com
53c6838cce Remove 5 unused flags. 
Review URL: https://chromiumcodereview.appspot.com/9362014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10646 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-08 15:39:41 +00:00
kmillikin@chromium.org
e505a085e3 Remove the JSON AST printing support. 
We are not currently maintaining or testing this.

R=danno@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9363019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10643 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-08 13:53:24 +00:00
rossberg@chromium.org
a0b287a3b1 Extend scanner with new Harmony module keywords (under flag). 
R=mstarzinger@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9352013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10638 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-08 10:53:58 +00:00
fschneider@chromium.org
5bc8a69055 Remove another two unused flags. 
Review URL: https://chromiumcodereview.appspot.com/9358019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10634 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-08 10:26:17 +00:00
kmillikin@chromium.org
9463c00d64 Remove unused --peephole-optimization flag. 
R=danno@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9361022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10630 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-08 09:55:25 +00:00
vegorov@chromium.org
cc3c37ef61 Disable code compaction again. 
Check failures are gone but now layout tests are failing.

R=fschneider@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9351019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10626 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-07 16:34:26 +00:00
vegorov@chromium.org
99fa8059c3 Try enabling (non-incremental) code compaction again. 
This time include slot-recording fixes in code flushing that were accidentally omitted from the previous commit.

R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9348018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10625 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-07 14:43:51 +00:00
vegorov@chromium.org
9920e441fa Disable code compaction again while we investigate buildbot check failures. 
Review URL: https://chromiumcodereview.appspot.com/9351013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10619 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-07 10:03:08 +00:00
vegorov@chromium.org
029aa9ef92 Enable non-incremental code compaction. 
It is intended to bring memory usage down on idle notifications.

R=erik.corry@gmail.com
BUG=v8:1726

Review URL: https://chromiumcodereview.appspot.com/9323079

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10616 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-07 08:51:47 +00:00
fschneider@chromium.org
0ec7773680 Allow bailing out of the register allocator when running out of virtual registers. 
1. Instead of checking upfront and estimating a limit for the number, we
now are able to stop register allocation and bailout when we don't
have enough virtual registers.

2. GCed some out-dated flags from flag-definition.h

3. Simplified the interface from the Lithium builder to the
register allocator in lithium-*.cc: For uses and definitions, we
just record the virtual register number given by the Hydrogen value id.
For temporaries, we request a new virtual register from the allocator.
For fixed temps, we don't need to do anything.

4. Increased number of deoptimization entries to 16K. Eventually we
probably want to make this array grow dynamically.
Review URL: https://chromiumcodereview.appspot.com/9325019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10597 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-03 12:05:08 +00:00
svenpanne@chromium.org
82d1f51534 Give uses within a loop a greater weight when doing representation inference. 
Uses of a value are weighted by a factor of FLAG_loop_weight (default: 10) for
every loop they are in. This makes uses in inner loops "more important", which
should improve the result of the representation inference.

Review URL: https://chromiumcodereview.appspot.com/8277031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10573 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-01 08:49:18 +00:00
yangguo@chromium.org
f8115b345d Removing some dead flags. 
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9121075

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10549 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-30 12:25:29 +00:00
rossberg@chromium.org
b05d7619c8 Do not turn on typeof null reform with --harmony switch. 
R=yangguo@chromium.org
BUG=v8:1913
TEST=

Review URL: https://chromiumcodereview.appspot.com/9232047

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10532 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-27 13:07:39 +00:00
erik.corry@gmail.com
dc9910f4a4 Minor cleanups of numeric seeded hashing patch. 
Review URL: http://codereview.chromium.org/9155010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10367 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-10 13:24:18 +00:00
erik.corry@gmail.com
81a0271004 Randomize the seed used for string hashing. This helps guard against 
CPU-eating DOS attacks against node.js servers.  Based on code from
Bert Belder.  This version only solves the issue for those that compile
V8 themselves or those that do not use snapshots.  A snapshot-based
precompiled V8 will still have predictable string hash codes.
Review URL: http://codereview.chromium.org/9086006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10330 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-04 15:12:15 +00:00
ulan@chromium.org
d61278da6d Do not reassign debug-only flag in release mode. 
BUG=1871
TEST=

Review URL: http://codereview.chromium.org/9021011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10294 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-12-21 16:19:55 +00:00
yangguo@chromium.org
9821d28836 Change --print-all-code to include --code-comments. 
Review URL: http://codereview.chromium.org/8968010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10268 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-12-16 08:38:52 +00:00
yangguo@chromium.org
4b05f743e0 Introduce --print-all-code flag and infrastructure for one flag to imply another flag. 
Review URL: http://codereview.chromium.org/8957009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10267 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-12-15 17:00:27 +00:00
keuchel@chromium.org
1e9a7267ab Introduce extended mode. 
This CL introduces a third mode next to the non-strict
(henceforth called 'classic mode') and 'strict mode'
which is called 'extended mode' as in the current
ES.next specification drafts. The extended mode is based on
the 'strict mode' and adds new functionality to it. This
means that most of the semantics of these two modes
coincide.

The 'extended mode' is entered instead of the 'strict mode'
during parsing when using the 'strict mode' directive
"use strict" and when the the harmony-scoping flag is
active. This should be changed once it is fully specified how the 'extended mode' is entered.

This change introduces a new 3 valued enum LanguageMode
(see globals.h) corresponding to the modes which is mostly
used by the frontend code. This includes the following
components:
* (Pre)Parser
* Compiler
* SharedFunctionInfo, Scope and ScopeInfo
* runtime functions: StoreContextSlot,
  ResolvePossiblyDirectEval, InitializeVarGlobal,
  DeclareGlobals

The old enum StrictModeFlag is still used in the backend
when the distinction between the 'strict mode' and the 'extended mode' does not matter. This includes:
* SetProperty runtime function, Delete builtin
* StoreIC and KeyedStoreIC
* StubCache

Review URL: http://codereview.chromium.org/8417035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10062 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-24 15:17:04 +00:00
erik.corry@gmail.com
5c1044bb54 Add flag --collect-megamorphic-maps-from-stub-cache to help diagnose a 
memory leak.
Review URL: http://codereview.chromium.org/8599006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10031 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-18 14:08:57 +00:00
whesse@chromium.org
7a25c43a07 Remove stack height tracking from ia32 non-optimizing code generator. 
Review URL: http://codereview.chromium.org/8340023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9857 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-01 12:20:46 +00:00
kmillikin@chromium.org
f077a41b12 MIPS: crankshaft implementation 
BUG=
TEST=

Review URL: http://codereview.chromium.org/7934002
Patch from Paul Lind <plind44@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9828 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-28 08:14:46 +00:00
mstarzinger@chromium.org
622d35dc0e Implement Harmony sets and maps. 
This implementation extends the internal ObjectHashTable to be able to
hold arbitrary objects (e.g. Smis, Strings, ...) as keys by applying
specialized hashing functions to primitive types. Equality of keys is
defined using the internal SameValue function.

R=rossberg@chromium.org
BUG=v8:1622
TEST=mjsunit/harmony/collections

Review URL: http://codereview.chromium.org/8372027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9777 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-25 14:14:56 +00:00
lrn@chromium.org
a47caee095 Make builtin functions be skipped in stack traces. 
Does include exposed builtin functions ("native functions").

Review URL: http://codereview.chromium.org/8345039

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9723 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-20 12:31:33 +00:00
danno@chromium.org
f7563019c7 Add flag to trace element kind transitions 
Currently only traces transitions from generated ia32 code.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/8357004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9715 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-20 09:38:24 +00:00
yangguo@chromium.org
298e0a9862 Tentatively enabling string slices. 
Review URL: http://codereview.chromium.org/8229009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9590 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-12 12:30:30 +00:00
rossberg@chromium.org
1abf3ed0a4 Introduce collective --harmony flag. 
Shorten --harmony-block-scoping to --harmony-scoping.

R=keuchel@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8226017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9589 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-12 12:23:06 +00:00
erik.corry@gmail.com
3ce33aacc6 New flag --stress-compaction 
Review URL: http://codereview.chromium.org/8234002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9582 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-11 15:52:15 +00:00
erik.corry@gmail.com
ba8a7f374e Add --noclever-optimizations to disable some things that have 
caused trouble in the past.
Review URL: http://codereview.chromium.org/8229005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9579 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-11 11:35:04 +00:00
erik.corry@gmail.com
f900fc9d80 Remove some unused and unneeded flags. 
Review URL: http://codereview.chromium.org/8228004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9576 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-11 09:28:06 +00:00
yangguo@chromium.org
6792016261 Disabling string slices. 
Review URL: http://codereview.chromium.org/8217006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9568 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-10 12:17:50 +00:00
yangguo@chromium.org
740f1e1c95 Enable string slices. 
Review URL: http://codereview.chromium.org/8218002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9554 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-10 08:35:01 +00:00
erik.corry@gmail.com
6f833a35d5 Don't always compact when collecting. 
Review URL: http://codereview.chromium.org/8124022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9512 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-04 09:12:02 +00:00
vegorov@chromium.org
3e9891c1d0 Enable code flushing for full (non-incremental) collections. 
This will ensure that we will flush code when we hit memory limits.

R=erik.corry@gmail.com
BUG=v8:1609

Review URL: http://codereview.chromium.org/8060053

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9484 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-29 13:51:47 +00:00
yangguo@chromium.org
acc105af91 Fix build with debuggersupport=off. 
BUG=v8:899

Review URL: http://codereview.chromium.org/8073020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9476 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-29 08:55:36 +00:00
erik.corry@gmail.com
355a2bf0a8 Temporarily switch on always-compact to flush out crash bugs. 
Review URL: http://codereview.chromium.org/8068001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9463 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-28 11:15:23 +00:00
vegorov@chromium.org
6dee868e03 Enable compaction, disable code-compaction. 
Enable array-join test again.

R=erik.corry@gmail.com

Review URL: http://codereview.chromium.org/8043022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9425 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-26 11:46:16 +00:00
vegorov@chromium.org
1046b1a464 Disable compaction. 
Introduce flag to control code compaction.

R=danno@chromium.org

Review URL: http://codereview.chromium.org/8037022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9420 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-26 08:53:27 +00:00
danno@chromium.org
f48c9f6557 Basic support for tracking smi-only arrays on ia32. 
Activated by the flag --smi-only-arrays

Currently not crankshaft support, using flag on non-ia32 platforms will lead to write barrier misses and crashes.

BUG=none
TEST=elements_kind.js

Review URL: http://codereview.chromium.org/7901016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9392 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-22 11:30:04 +00:00
lrn@chromium.org
610281f4ee Fix calculation of live-bytes in pages. 
The "live bytes" count is *really* a "marked black" count - i.e., the count of bytes *known* to be live.

Fix aggravating bug on X64 where assembler code used a value that was off
by a factor of 2^31.

Ensure that sweeping clears live-bytes. Added other missing increments.

Added print statements to trace live-byte modifications, under a flag.

Still a few cases of undercounting left.

(New issue to merge from GC branch to bleeding_edge)

Review URL: http://codereview.chromium.org/7970009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9338 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-20 11:20:00 +00:00
vegorov@chromium.org
ac36cb4504 Merge experimental/gc branch to the bleeding_edge. 
Review URL: http://codereview.chromium.org/7945009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9328 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-19 18:36:47 +00:00
yangguo@chromium.org
77141f78ff Tentative implementation of string slices (hidden under the flag --string-slices). 
TEST=test/mjsunit/string-slices.js

Review URL: http://codereview.chromium.org/7477045

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9027 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-26 13:03:30 +00:00
keuchel@chromium.org
3c7ca304fe Preliminary code for block scopes and block contexts. 
BUG=
TEST=

Review URL: http://codereview.chromium.org/7549008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8911 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-11 16:29:28 +00:00
rossberg@chromium.org
bd18514972 Implement Harmony semantics for typeof null (behind a flag). 
Harmony is intended to make typeof null === "null". This may
break existing programs. Implementing it will allow us to run
some tests on the actual web.

R=kmillikin@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/7598030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8876 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-10 12:12:06 +00:00
mstarzinger@chromium.org
2bb7c74f80 Preliminary Harmony weak maps API implementation. 
R=rossberg@chromium.org,danno@chromium.org
BUG=v8:1565
TEST=mjsunit/harmony/weakmaps

Review URL: http://codereview.chromium.org/7529007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8811 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-03 11:55:13 +00:00
whesse@chromium.org
b10a1141b5 Add tracing of the stack height to full code generator. 
BUG=
TEST=

Review URL: http://codereview.chromium.org/7097011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8755 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-07-28 10:17:41 +00:00
danno@chromium.org
d7641b89aa Re-activate unboxed double arrays by default. 
R=svenpanne@chromium.org
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/7477047

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8749 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-07-27 15:29:02 +00:00
ricow@chromium.org
b1115ec2d3 Revert r8719 - Enable unboxed double arrays by default. 
It causes relibility bot crashes
Review URL: http://codereview.chromium.org/7461061

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8731 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-07-25 10:24:14 +00:00
danno@chromium.org
e63813ec48 Enable unboxed double arrays by default. 
R=ager@chromium.org
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/7491007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8719 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-07-22 09:48:54 +00:00
sgjesse@chromium.org
8a6108de95 Remove the ability to compile without logging and profiling 
The preprocessor defines ENABLE_LOGGING_AND_PROFILING and ENABLE_VMSTATE_TRACKING has been removed as these where required to be turned on for Crankshaft to work. To re-enable reducing the binary size by leaving out heap and CPU profiler a new set of defines needs to be created.

R=ager@chromium.org

BUG=v8:1271
TEST=all

Review URL: http://codereview.chromium.org//7350014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8622 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-07-13 09:09:04 +00:00
ager@chromium.org
15429da469 Remove heap protection support. 
It does not currently work and when it did work we never got it fast
enough to be useful.

R=kmillikin@chromium.org

Review URL: http://codereview.chromium.org/7324051

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8601 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-07-11 14:03:21 +00:00
vegorov@chromium.org
64c897b5cb Extend gdb-jit support (OSX/locals+parameters/prettyprint) 
Generate Mach-O in-memory objects for OSX. Dump locals and parameters
for non-optimized frames.

Unfortunately, it seems like more-recent-GDB on OSX there is a little
temperamental (eg, the version from macports will be missing symbols
from gdb-integration_g when the version included in xcode will not--
and this is with --gdbjit off).

Includes some Python scripts to make dealing with V8 values in gdb more
pleasant.

Patch by Luke Zarko.

Review URL: http://codereview.chromium.org/6995161

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8483 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-30 11:52:00 +00:00
ager@chromium.org
2b286a3128 Remove --strict developer flag from V8. 
It makes V8 not have JavaScript semantics by throwing exception all
the time. Even our own natives JavaScript code cannot run using that.

R=ricow@chromium.org
BUG=v8:1511

Review URL: http://codereview.chromium.org/7248056

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8475 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-30 06:58:13 +00:00
mikhail.naganov@gmail.com
f4bf8f8fee Remove obsolete aggregating and non-working producers heap profilers. 
2000 LOC are gone!

R=sgjesse@chromium.org
BUG=1481

Review URL: http://codereview.chromium.org/7247018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8406 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-24 11:38:47 +00:00
sgjesse@chromium.org
870ef6bdfe Remove the flag --debug-info 
This flag has not bees set to false for years, and even when building without debugging support the position information is required for stack traces.

R=ager@chromium.org

BUG=none
TEST=none

Review URL: http://codereview.chromium.org//7046078

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8252 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-10 07:15:46 +00:00
fschneider@chromium.org
424407c727 Simplify the check when to perform loop invariant code motion. 
Allow HChange instructions to be hoisted out of loops. To avoid
unnecessary code motion we don't hoist instructions from blocks that
have been marked containing an unconditional deoptimization.
Review URL: http://codereview.chromium.org/7003087

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8245 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-09 15:49:21 +00:00
danno@chromium.org
4de3bb500c Implement core support for FixedDoubleArrays. 
Under a flag without IC or Crankshaft support.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/7089002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8229 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-09 10:03:35 +00:00
svenpanne@chromium.org
683baa1682 Removed dead flags. 
Review URL: http://codereview.chromium.org/7077028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8097 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-30 09:42:28 +00:00
danno@chromium.org
123500999f Reland 7917: 
Better support for 'polymorphic' JS and external arrays

Allow  keyed store/load stubs to switch between external array and fast JS arrays without forcing a state transition to the generic stub.

There CL consists of two pieces of functionality. First, code stubs for fast element arrays don't immediately transition to the MEGAMORPHIC state when there's a map mismatch. Second, two ICs are cached per map for fast elements, the MONOMORPHIC version, and a new MEGAMORPHIC version that handles two or more different maps and dispatches to shared stubs to perform the array operation.

Review URL: http://codereview.chromium.org/7036016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7935 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-18 13:17:29 +00:00