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95 Commits

Author SHA1 Message Date
fschneider@chromium.org
f2cb08f1c2 Fix handling of -0 in the unary-op IC and avoid repeated patching/transitions. 
When the stub return a heap number we do a state transition to
a version HEAP_NUMBER that can handle -0.

There is room for further improvement in the typefeedback for the
case of -0. This change however does not address this and only fixes
the acute issue.
Review URL: http://codereview.chromium.org/7037025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7944 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-18 17:32:36 +00:00
whesse@chromium.org
a32540e762 Add code to ia32 TypeRecordingBinaryOpStub to handle SHR Smi overflow. 
BUG=v8:1395

TEST=

Review URL: http://codereview.chromium.org/7039013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7937 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-18 14:53:02 +00:00
svenpanne@chromium.org
f39b0dfccb Handle all kind of arguments in the ToBooleanStub. While this is not very thrilling in itself, it is one of several steps to add type recording to this stub. Removed a duplicate check for null in the ARM stub and made a tiny simplification, removing a sub instruction. 
As a side note, this change has some positive impact on the performace, e.g. imaging-darkroom is 8.3% faster and ws-ieee754conv is even 19.9% faster. No idea why the speedup is so big in some cases, but never look a gift horse in the mouth... ;-)
Review URL: http://codereview.chromium.org/7042004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7926 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-18 10:40:01 +00:00
lrn@chromium.org
6932196aa8 Fix push of untagged value in type-recording unary op stub. 
Review URL: http://codereview.chromium.org/7037007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7919 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-18 07:40:51 +00:00
danno@chromium.org
ecc25bfb47 Add enumeration to specify if smi check needed 
R==ager@chromium.org
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/7039004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7914 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-17 12:05:06 +00:00
fschneider@chromium.org
e3fd7c450e Fix presubmit errors. 
TBR=whesse@chromium.org
Review URL: http://codereview.chromium.org/7017011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7912 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-17 11:24:38 +00:00
fschneider@chromium.org
7d446f7f4c Fix bug restoring of JS entry sp so to fix profiler-related valgrind issues. 
The profiler did not correctly identify when there was a JS frame
on the stack after an exception was thrown.

I also refactored the code to use PopTryHandler macro-instructions on all platforms

BUG=73722
TEST=No more valgrind errors related to v8::internal::StackFrameIterator.
Review URL: http://codereview.chromium.org/7019010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7910 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-17 11:11:12 +00:00
vitalyr@chromium.org
26bf1dfd4a Kill some dead code. 
Review URL: http://codereview.chromium.org/6995048

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7867 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-11 13:45:30 +00:00
fschneider@chromium.org
48077e89e9 Remove support for branch hints from the IA32 and X64 assembler. 
They were not on by default and should not be needed on modern
platforms.
Review URL: http://codereview.chromium.org/7001025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7866 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-11 13:26:07 +00:00
jkummerow@chromium.org
e90d16953c Remove NearLabel, replacing remaining occurrences with Label 
TEST=compiles, existing tests pass

Review URL: http://codereview.chromium.org/6991010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7848 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-11 09:12:16 +00:00
jkummerow@chromium.org
95ff85112f Merge Label and NearLabel 
by adding NearLabel's functionality to Label and introducing a "near" parameter to jump instructions.

TEST=compiles; existing tests still pass.

Review URL: http://codereview.chromium.org/6928060

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7832 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-10 09:03:42 +00:00
vegorov@chromium.org
d9c80d4771 Propagate a Failure from GenerateDictionaryNegativeLookup instead of causing GC. 
Review URL: http://codereview.chromium.org/6973001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7829 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-09 16:15:18 +00:00
vitalyr@chromium.org
07ed2f1263 Compare IC: add SYMBOLS state. 
Review URL: http://codereview.chromium.org/6960011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7824 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-09 13:30:04 +00:00
vitalyr@chromium.org
913ce07e2f Extract common code in string compare loops. 
Review URL: http://codereview.chromium.org/6927044

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7809 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-06 14:19:51 +00:00
vegorov@chromium.org
9a9211e22d Unroll more StringDictionary lookup probes both for positive and negative dictionary lookups. 
Review URL: http://codereview.chromium.org/6932010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7795 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-05 12:30:57 +00:00
vitalyr@chromium.org
5b2e2636b7 Faster string equals in generated code. 
In my previous change I mixed up "compare" and "equals". This made us
miss the fast length check before comparing strings for equality.

Now we have a separate helper for "equals". It shares some of the
inner loop details with "compare". I'll see if this can be cleaned up
without making it unreadable.

Review URL: http://codereview.chromium.org/6928020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7794 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-05 11:40:08 +00:00
vitalyr@chromium.org
4ca7b50990 Compare IC: add STRINGS state. 
BUG=1340

Review URL: http://codereview.chromium.org/6937001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7783 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-04 18:30:37 +00:00
ager@chromium.org
eda2a0d4d2 Cleanup: use xorps to zero out an xmm register on ia32 too. 
Encoding is one byte shorter.

R=lrn@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/6910021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7760 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-03 12:00:54 +00:00
whesse@chromium.org
014e42a81f Fix unary sub IC heap number code on x64: an untagged double was pushed on the stack and GCd. 
BUG=1352
TEST=mjsunit/math-abs

Review URL: http://codereview.chromium.org/6901150

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7742 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-02 12:55:44 +00:00
svenpanne@chromium.org
238349f2a7 Removed dead code: GenericUnaryOpStub is not used anymore, as a consequence, NegativeZeroHandling and UnaryOpFlags are dead, too. 
Review URL: http://codereview.chromium.org/6903124

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7731 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-29 17:49:53 +00:00
svenpanne@chromium.org
fd5bff856e Fixed compilation breakage due to warnings. TBR... 
Review URL: http://codereview.chromium.org/6880286

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7711 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-28 21:02:14 +00:00
svenpanne@chromium.org
f7ecf95e95 Fixed build on Mac, where g++ is a bit too dumb to see that a variable is always initialized. 
Review URL: http://codereview.chromium.org/6893105

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7709 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-28 20:11:39 +00:00
svenpanne@chromium.org
e013d4f0a4 Type recording for unary ops 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7707 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-28 17:49:55 +00:00
vitalyr@chromium.org
cc782be64e Support string add in crankshaft: 
o The type recording binary stub got a new type for string + string.

o Added HStringAdd and LStringAdd based on the new type info.

o Started using HValue types to avoid unneccesary checks.

Review URL: http://codereview.chromium.org/6852015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7622 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-15 06:39:36 +00:00
karlklose@chromium.org
f7840f65f0 Isolates: Cleanup usage of FACTORY in code stubs and bootstrapper. 
Review URL: http://codereview.chromium.org/6720014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7611 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-14 08:01:19 +00:00
fschneider@chromium.org
544a436425 Remove code from the deprecated GenericBinaryOpStub. 
All platforms are now using the TypeRecordingBinaryOpStub.

I also removed the ARM IntegerModStub which was called from
the GenericBinaryOpStub.
Review URL: http://codereview.chromium.org/6826032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7566 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-11 09:39:21 +00:00
vitalyr@chromium.org
179aef2b8f VM initialization refactoring. 
This patch introduces global once per-process initialization and moves
the OS and CPU setup there. This makes CPU features isolate-independent.

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7462 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-31 16:17:37 +00:00
fschneider@chromium.org
fb457a8b87 Add binary-op stub variant to handle oddball objects more efficiently. 
Review URL: http://codereview.chromium.org/6744006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7396 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-28 16:36:08 +00:00
ager@chromium.org
94c1058ba9 Cleanup more isolate usage in ia32 files. 
Review URL: http://codereview.chromium.org/6696107

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7367 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-25 13:21:30 +00:00
ager@chromium.org
1bdc8031fa Introduce accessors on builtins instance and use them to avoid TLS access when getting builtins. 
R=vitalyr@chromium.org

Review URL: http://codereview.chromium.org/6717018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7327 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-23 13:40:07 +00:00
ager@chromium.org
4f5de28a9b Avoid TLS access for counters. 
Get rid of the COUNTERS macro and fetch the counters from a locally
stored isolate instead.

R=karlklose@chromium.org

Review URL: http://codereview.chromium.org/6723014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7321 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-23 11:13:07 +00:00
ager@chromium.org
b69591bc0f Require an isolate parameter for most external reference creation to 
avoid TLS access in connection with external references.

Make the isolate accessible via the assembler.

Only for ia32 at this point. If this looks OK to you I will port it.

R=vitalyr@chromium.org

Review URL: http://codereview.chromium.org/6713074

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7305 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-22 13:20:04 +00:00
vitalyr@chromium.org
7976ca2cbc Merge isolates to bleeding_edge. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7271 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-18 20:35:07 +00:00
vitalyr@chromium.org
76e226f832 Revert r7268: it borked the history. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7269 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-18 19:41:05 +00:00
vitalyr@chromium.org
6ff7fdebd3 Merge isolates to bleeding_edge. 
Review URL: http://codereview.chromium.org/6685088

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7268 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-18 18:49:56 +00:00
mmaly@chromium.org
4cbf3478d8 Implement strict mode ThrowTypeError functions for arguments object. 
* Reverse order of arguments in-object fields for length and callee.
* Introduce arguments ThrowTypeError functions (caller/callee).
* Create strict mode arguments boilerplate object.
* Strict mode "new arguments object" stub.
* Runtime arguments object allocation.
* Update es5conform test expectations.

Review URL: http://codereview.chromium.org/6698015/

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7252 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-17 20:28:41 +00:00
mmaly@chromium.org
55906eb46e Implement fast path for strict closure creation. 
Review URL: http://codereview.chromium.org/6677036/

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7251 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-17 20:28:30 +00:00
erik.corry@gmail.com
941701d0b9 Fix SmiCompare on 64 bit to distinguish between comparisons where 
we know that both sides are Smi and those where we don't.  Fix inlined
symbol table probes to cope with strings, undefined and null (indicating
a deleted entry).  Some changes to other architectures that were found
with the new asserts.
Review URL: http://codereview.chromium.org/6682026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7172 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-15 10:03:57 +00:00
vitalyr@chromium.org
8700f796e4 Remove unused StringCharCodeAt stub. 
Review URL: http://codereview.chromium.org/6690014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7163 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-14 16:54:51 +00:00
danno@chromium.org
9cca7d2733 Combine typed and pixel arrays. 
Worth mentioning:
- Specialized versions of pixel array and store/loads inside the generic stubs have been removed, since to have parity for all external arrays, 8 different versions would have to be inlined/checked.
- There's a new constant in v8.h for external arrays with pixel array elements.

Review URL: http://codereview.chromium.org/6546036

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7106 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-09 15:01:16 +00:00
sgjesse@chromium.org
061fa8be11 Add the possibility for a code stub to be non-movable 
Non-moveable code-stube are allocated in large object space. They are only required on ARM where the different C-entry stubs are required to never move.

This gets rid of pre-computing these stubs and hope that they never move. Also for crankshaft the C-entry stub which saved doubles is not generated in the snapshot so it ends up being generated at runtime and potentially move.
Review URL: http://codereview.chromium.org/6626072

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7097 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-09 10:38:19 +00:00
whesse@chromium.org
417ee30828 Add MathPowStub to x64 platform, and fix error in stub on ia32 platform. 
Review URL: http://codereview.chromium.org/6602007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6973 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-02-28 14:57:14 +00:00
sgjesse@chromium.org
0a15b9116a X64: Refactor the string add in the type recording binary operation stub 
This makes the code have the same structore as on IA32 and ARM, and will also support possible fast adding a smi and string where the string is to the right and fast adding of String objects.
Review URL: http://codereview.chromium.org/6542060

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6892 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-02-22 12:26:31 +00:00
lrn@chromium.org
b4fd72b335 Change native RegExp call code to properly set C++ structures and 
to handle exceptions on return from RegExp.

BUG=1108
TEST=

Review URL: http://codereview.chromium.org/6489001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6794 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-02-15 13:53:51 +00:00
danno@chromium.org
36088cb64f Implement specialized IC code stubs for pixel array stores. 
Review URL: http://codereview.chromium.org/6478027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6781 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-02-14 21:21:33 +00:00
antonm@chromium.org
492ef6ee7a Do sanity check of exception state when returning from native to JS. 
If --debug-code is on, check that returned value and Top::has_pending_exception
agree on exception state.

Review URL: http://codereview.chromium.org/6450004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6692 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-02-08 20:13:08 +00:00
danno@chromium.org
a2fb4a12bb Create specialized code stubs for PixelArray loads. 
Review URL: http://codereview.chromium.org/6287030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6614 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-02-03 12:50:50 +00:00
whesse@chromium.org
a5f94a4862 Fix Math.pow(-0, 0.5) and Math.pow(-0, -0.5). These are not equal to sqrt(-0) and 1/sqrt(-0). Add tests for these cases. Fixes V8 issue 1088. 
BUG=1088
TEST=test/mjsunit/math-pow.js

Review URL: http://codereview.chromium.org/6368050

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6573 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-02-02 12:54:58 +00:00
fschneider@chromium.org
24843d6310 Introduce ToNumber stub and use it in non-optimized code for to-number conversion. 
This stub is used for increment/decrement operations and unary plus.
The resulting code is more compact and faster than calling a JS builtin.


Review URL: http://codereview.chromium.org/6350021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6527 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-01-28 14:18:26 +00:00
antonm@chromium.org
c5c4f0eda5 Revert "Unification: introduce ExternalReference::pending_exception_address()." 
This reverts r6518.

TBR=ager@chromium.org

Review URL: http://codereview.chromium.org/6359015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6519 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-01-27 18:21:07 +00:00