Commit Graph

4372 Commits

Author SHA1 Message Date
kaznacheev@chromium.org
c39194e06f Implemented missing instructions in ia32 and x64 disassembler.
ia32: fld(i), fldpi
x64: fld(i), fldpi, cvtsd2si, cvttsd2si

Review URL: http://codereview.chromium.org/3471011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5525 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-24 12:55:17 +00:00
mikhail.naganov@gmail.com
0a539dc181 Fix presubmit error.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5524 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-24 11:50:50 +00:00
mikhail.naganov@gmail.com
8f22667805 Provide more functions to CPU profiler (fix issue 858).
The cause for missing functions is that some of them are created
from compiled code (see FastNewClosureStub), and thus not get
registered in profiler's code map.

My solution is to hook on GC visitor to provide JS functions
addresses to profiler, only if it is enabled.

BUG=858
TEST=

Review URL: http://codereview.chromium.org/3417019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5523 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-24 11:45:12 +00:00
erik.corry@gmail.com
a26a9b74ab Revert 5520 due to compilation failure.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5521 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-24 09:35:19 +00:00
erik.corry@gmail.com
68ef41af29 Small tweaks to make the x64 full code generator generate
more compact code.
Review URL: http://codereview.chromium.org/3443022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5520 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-24 08:34:52 +00:00
kmillikin@chromium.org
9c503a8330 Fix some inconsistent formatting.
I noticed we sometimes had extra spaces before and after the "const"
keyword.  Probably the result of a search and replace gone wrong.

This is a whitespace only change.

Review URL: http://codereview.chromium.org/3427021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5519 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-24 08:25:31 +00:00
kaznacheev@chromium.org
cfbc1eed9c Prevent modification of cached normalized maps.
Finally sovles the problem that r5342 attempted to solve.
When adding a stub to a map's code cache we need to make
sure that this map is not used by object that do not need
this stub.

Existing solution had 2 flaws:
1. It checked that the map is cached by asking the current context.
If the object escaped into another context then NormalizedMapCache::Contains
returns false negative.

2. If a map gets evicted from the cache we should not try to modify it
even though Contains returns false.

This patch implements much less fragile solution of the same problem:
A map now has a flag (is_shared) that is set once the map is added
to a cache, stays set even after the cache eviction, and is cleared
if the object goes back to fast mode.

Added a regression test.

Review URL: http://codereview.chromium.org/3472006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5518 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-24 08:18:33 +00:00
kmillikin@chromium.org
830185b175 Clean up some messiness in Scopes.
For some reason, the scope's arguments and arguments shadow were
variable proxies, which resulted in all references to the arguments
shadow being shared in the AST.  This makes it hard to put per-node
state on the AST nodes.

I took the opportunity to remove Variable::AsVariable which has
confused people in the past, and to rename Variable::slot to the more
accurate Variable::AsSlot.

Review URL: http://codereview.chromium.org/3432022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5517 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-24 07:53:59 +00:00
kaznacheev@chromium.org
5e572e4622 Support dec_b instruction in ia32 and x64 disassembler.
Review URL: http://codereview.chromium.org/3412028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5515 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-23 19:01:56 +00:00
vitalyr@chromium.org
740aba98fb Add an assert to ensure we never allocate second empty fixed array.
Review URL: http://codereview.chromium.org/3442012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5514 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-23 12:49:59 +00:00
vitalyr@chromium.org
48fd3dcaf9 Fix copy-on-write assert by setting the new array map early.
BUG=876

Review URL: http://codereview.chromium.org/3466013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5513 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-23 12:23:35 +00:00
vegorov@chromium.org
622351fedd Fix getOwnPropertyDescriptor() support for index properties.
Add support for index properties with getters, setters or indexed interceptors.

For indexed interceptor case only fix crashes, do not guarantee any semantic soundness. Separate issue opened for this http://code.google.com/p/v8/issues/detail?id=877

BUG=http://code.google.com/p/v8/issues/detail?id=874

Review URL: http://codereview.chromium.org/3462005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5512 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-23 11:25:01 +00:00
erik.corry@gmail.com
94cf27373c Cleanup of contexts in the full code generator.
Review URL: http://codereview.chromium.org/3449004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5511 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-23 09:22:45 +00:00
kaznacheev@chromium.org
06c867404b Dynamically determine optimal instance size.
The number of inobject properties used to be derived from the number
of this property assignments in the constructor (and increased by 2 to
allow for properties added later). This very often leads to wasted inobject 
slots.

This patch reclaims some of the unused inobject space by the following method:
 - for each constructor function the first several objects are allocated using the initial 
   ("generous) instance size estimation (this is called 'tracking phase').
 - during the tracking phase map transitions are tracked and actual property counts are collected.
 - at the end of the tracking phase instance sizes in the maps are decreased if necessary
   (starting with the function's initial map and traversing the transition tree).
 - all further allocation use more realistic instance size estimation.

Shrinking generously allocated objects without costly heap traversal is made possible 
by initializing their inobject properties with one_pointer_filler_map (instead of undefined). 

The initial slack for the generous allocation is increased from 2 to 6 which really helps some tests.

Review URL: http://codereview.chromium.org/3329019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5510 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-23 09:15:26 +00:00
vegorov@chromium.org
7c8bb52737 Fix possible evaluation order problems.
We should not allow handle dereference and GC inside the same expression because order of subexpression evalution are not defined.

Review URL: http://codereview.chromium.org/3398014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5509 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-23 08:27:51 +00:00
kaznacheev@chromium.org
e69278a70c Unuse labels when bailing out of StubCompiler methods.
There are 3 methods where early return happen before the 
miss label is bound. This is harmless in Release mode, 
in Debug an assertion fails.

Review URL: http://codereview.chromium.org/3405022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5508 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-23 08:06:19 +00:00
antonm@chromium.org
31284c01f8 Fix a build for Win64 with VS2008.
It complaints of type conversions.

Review URL: http://codereview.chromium.org/3396015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5507 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-22 13:57:00 +00:00
antonm@chromium.org
88eb06098e Fix Win64 build with VS2008.
strlen returns size_t and VS2008 is now pretty picky about that.

Review URL: http://codereview.chromium.org/3384019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5506 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-22 13:24:14 +00:00
lrn@chromium.org
0dece535d9 RegExp: Fix caching to correctly set lastIndex.
BUG: 52801

Review URL: http://codereview.chromium.org/3389022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5504 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-22 11:22:57 +00:00
fschneider@chromium.org
22eb9af355 Prepare push to trunk. Now working on version 2.4.6.
Review URL: http://codereview.chromium.org/3466009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5501 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-22 09:35:56 +00:00
vitalyr@chromium.org
d80c627875 Try fix win64 build.
TBR=erik.corry

Review URL: http://codereview.chromium.org/3446015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5500 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-21 13:04:42 +00:00
vitalyr@chromium.org
a6bbe9820e Custom call IC for Math.floor.
Review URL: http://codereview.chromium.org/3327022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5499 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-21 12:54:12 +00:00
yurys@chromium.org
b2f444f6e6 Use //@ sourceURL when formatting stack trace
BUG=672
Review URL: http://codereview.chromium.org/3444011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5498 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-20 15:55:28 +00:00
vitalyr@chromium.org
ceb9d79d73 Generate inline code for contextual loads.
Contextual load requires only a map check followed by a cell hole
check so we can generate pretty compact code for that. The fact that
we have inlined code is marked by mov ecx, offset instruction after
the IC call. Inlining is only enabled inside loops and in non-builtin
functions.

The generated code size increase is about 3%. This descreased the
pc-to-code cache hit rate in some of the benchmarks that trigger
GC. To compensate we now have 4 times as much entries in the cache.

Review URL: http://codereview.chromium.org/3402014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5497 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-20 13:50:27 +00:00
mikhail.naganov@gmail.com
290f142a7a Fix ProfileNodeFindOrAddChildForSameFunction test on Win32 debug.
Test was failing is due to a fact that MSVC in debug mode uses
separate instances for identical string literals.

TBR=sgjesse@chromium.org

Review URL: http://codereview.chromium.org/3381013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5496 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-20 12:25:45 +00:00
floitschV8@gmail.com
8fdf96727f Fix build-breakage on Mac. Initial variable eventhough it is initialized in all reachable branches.
Review URL: http://codereview.chromium.org/3471001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5494 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-20 10:58:41 +00:00
sandholm@chromium.org
5a6b098527 Changed the RegExp benchmark to exercise the regexp engine on different
inputs by scrambling the input strings.
Review URL: http://codereview.chromium.org/3435012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5493 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-20 10:36:21 +00:00
mikhail.naganov@gmail.com
c1903ce332 Show RegExp calls in the profile.
It turns out they were filtered out. But when I unfiltered them, I
discovered another issue: when DevTools run, regexp literals get
recompiled each time they called (looks like this is concerned with
switching to full compiler), so I ended up having multiple entries for
the same regexp. To fix this, I changed the way of how code entries
equivalence is considered.

BUG=crbug/55999
TEST=cctest/test-profile-generator/ProfileNodeFindOrAddChildForSameFunction
(the test isn't for the whole issue, but rather for equivalence testing)

Review URL: http://codereview.chromium.org/3426008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5492 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-20 09:29:12 +00:00
floitschV8@gmail.com
fc9915b770 Added precision mode to fast-dtoa.
Review URL: http://codereview.chromium.org/2000004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5491 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-20 09:18:00 +00:00
lrn@chromium.org
a98baf9666 Remove unused variable from Scanner class.
BUG=None
TEST=compiles

Patch from Thiago Farina <tfarina@chromium.org>

Review URL: http://codereview.chromium.org/3413015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5490 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-20 08:43:35 +00:00
lrn@chromium.org
81b0236d76 Make preparsing data reusable.
Fix bug in writing symbol ids over 128.

Review URL: http://codereview.chromium.org/3416010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5485 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-17 12:55:27 +00:00
fschneider@chromium.org
78f550c6fd Add missing x87 instructions fisttp and fst to the disassembler.
Review URL: http://codereview.chromium.org/3408011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5484 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-17 12:08:50 +00:00
vitalyr@chromium.org
c6c55a69a9 Fix direct loading of global function prototypes:
We must also check the current context has not changed.

The bug reported by Florian.

Review URL: http://codereview.chromium.org/3410014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5483 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-17 09:56:47 +00:00
lrn@chromium.org
3b8235b306 Make some runtime arguments checks be RUNTIME_ASSERT, not ASSERT.
Review URL: http://codereview.chromium.org/3411013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5482 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-17 08:34:53 +00:00
peter.rybin@gmail.com
41064a57c3 Add breakOnCaughtException and breakOnUncaughtException flags
Review URL: http://codereview.chromium.org/3275011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5480 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-16 21:40:42 +00:00
kaznacheev@chromium.org
eef3bd7c04 Prevent inline constructor generation when duplicate properties are present in the constructor.
Currenly the constructor like this:
function f() {
  this.a = 0;
  this.a = 1;
  this.a = 2;
}
creates a map with duplicate desciptors which is bad in many ways.


Review URL: http://codereview.chromium.org/3434004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5476 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-16 10:55:37 +00:00
fschneider@chromium.org
e91a352d02 Fix a regression in character-at stub when doing a keyed load on a string.
Loading from out-of-range has to go to the runtime system to check if there
exists a property with that index in the prototype.

Review URL: http://codereview.chromium.org/3410011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5471 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-16 09:18:08 +00:00
kasperl@chromium.org
b2306a41d0 Clean up the insertion of nops (signalling non-inlined loads and
stores) in the full codegens.
Review URL: http://codereview.chromium.org/3431010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5470 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-16 09:10:34 +00:00
mikhail.naganov@gmail.com
2133ee3fee Really fix Mac build, and lint.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5469 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-16 08:51:13 +00:00
mikhail.naganov@gmail.com
64d07348ab Fix compilation issue on Mac
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5468 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-16 08:39:27 +00:00
mikhail.naganov@gmail.com
187d249d92 Enhance SafeStackFrameIterator to avoid triggering assertions in debug mode.
When running profiling in debug mode, several assertions in frame
iterators that are undoubtedly useful when iterator is started from a
VM thread in a known "good" state, may fail when running over a stack
of a suspended VM thread. This patch makes SafeStackFrameIterator
to proactively check addresses and bail out from iteration early,
before an assertion will be triggered.

BUG=crbug/55565

Review URL: http://codereview.chromium.org/3436006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5467 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-16 08:23:34 +00:00
mikhail.naganov@gmail.com
b6c5c5b50d Fix x64 compilation error. Patch from tfarina@chromium.org
http://codereview.chromium.org/3442004/show

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5466 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-16 08:17:46 +00:00
lrn@chromium.org
4d99cef867 X64: Templating Smi-macros to use both Label and NearLabel.
Added some more uses of NearLabel.

Review URL: http://codereview.chromium.org/3381005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5465 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-16 07:24:15 +00:00
erik.corry@gmail.com
83d6c1995f Made the use of past tense more consistent in change log.
Review URL: http://codereview.chromium.org/3425005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5461 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-15 12:17:41 +00:00
ricow@chromium.org
240cee91e4 Add support for near labels.
This change introduces near labels in the assembler, allowing us to
uptimize forward jumps (conditional and unconditional) if we can
guarantee that the jump is witin range -128 to +127.

I changed a large fractions of the existing Labels to NearLabels, and
left out cases where it was not immediately clear if it could be used
or not (not immediately clear means labels covering a large code
block, or used in function calls which we could potentially change to
accept near labels). 

Review URL: http://codereview.chromium.org/3388004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5460 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-15 11:43:12 +00:00
erik.corry@gmail.com
fbd67b1045 Prepare push to trunk. We are now working on version 2.4.5.
Review URL: http://codereview.chromium.org/3429006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5459 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-15 10:58:25 +00:00
lrn@chromium.org
cb514b72db Made predata smaller by storing symbol data in variable length base-128.
Remove position from symbol data - they must come in the correct order anyway.

Review URL: http://codereview.chromium.org/3384003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5458 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-15 10:54:35 +00:00
erik.corry@gmail.com
62ec3292de Replace 2 ARM ldr instructions with one ldrd in the code generated
for a SubStringStub and StringCompareStub in the ARM backend.  This
is a commit of http://codereview.chromium.org/3341012 for Andreas
Anyuru.
Review URL: http://codereview.chromium.org/3387003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5457 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-15 10:22:55 +00:00
fschneider@chromium.org
bd6a8c1e4e Make the CompareStub and the UnaryOpStub accept smi inputs.
The stubs get an additional flag for including the smi code
inside the stub. This allows us to generate more compact code
if we don't want to inline the smi case outside the stub.

Review URL: http://codereview.chromium.org/3388005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5456 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-15 10:14:25 +00:00
antonm@chromium.org
dae5fc6f81 Attempt to collect more garbage before panicking with out of memory.
Currently weak handles retain an object for another GC round (oftem times,
major GC round.)  Instrumenting Chromium shows that navigation leaves
many global objects which are only collected in next go.  Let's
attempt to collect more garbage when approacing OOM condition.

Review URL: http://codereview.chromium.org/3327021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5455 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-09-14 17:48:56 +00:00