kasperl@chromium.org
1e42e70021
Use SSE3 instructions - if available - for faster To(U)Int32
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conversion in bit operation stubs. Disable serialization
support by default to allow us to use SSE3 instructions and
faster write barrier code when running without snapshot.
Review URL: http://codereview.chromium.org/27046
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1364 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-02-25 14:57:46 +00:00
ager@chromium.org
0c7af39737
Speed up access to global variables from eval scopes. Traverse the
...
surrounding context to figure out if the variable could be global. If
the variable could be global we check context extension objects at
runtime and use a global LoadIC if no variables have been introduced
by eval.
Fix crash bug when loading function arguments from inside eval. The
shadowed variable in the DYNAMIC_LOCAL case does not rewrite to a slot in
that case.
Review URL: http://codereview.chromium.org/28027
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1348 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-02-24 13:11:53 +00:00
kasperl@chromium.org
0e1819d0b8
Revert 1330:1331.
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TBR=ager@chromium.org
Review URL: http://codereview.chromium.org/24026
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1332 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-02-20 17:42:04 +00:00
ager@chromium.org
b6a1cd6787
Simplify non-smi bit operation optimization. The explicit range
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checks are not needed. If we fail to store the float as a 64-bit
integer, we just go to the runtime system. The only extra case in
which we enter the runtime system is for NaN which should not matter.
Review URL: http://codereview.chromium.org/21539
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1331 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-02-20 14:23:54 +00:00
kasperl@chromium.org
3afe470026
Improve generated code for non-smi bit operations by
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converting the operands to 32-bit ints directly in the
machine code stub instead of just checking if the heap
numbers really just represent 32-bit ints and going
through the runtime system in that case.
Review URL: http://codereview.chromium.org/21536
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1330 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-02-20 13:30:32 +00:00
ager@chromium.org
195753ff7b
Commit of eval changes left out because they were stuck in another changelist.
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git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1307 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-02-19 07:22:53 +00:00
ager@chromium.org
cafe25f258
ARM side of load optimization in the presence of eval.
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Review URL: http://codereview.chromium.org/20453
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1301 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-02-18 13:54:13 +00:00
ager@chromium.org
a09832ab76
Optimize loads from variables that might be shadowed by variables
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introduced by eval.
In the cases where calls to eval have not introduced any variables, we
do not need to perform a runtime call. Instead, we verify that the
context extension objects have not been created and perform a direct
load.
Not implemented for ARM yet and the scope resolution code could use
some better abstractions. I'd like to do that in a separate
changelist.
Review URL: http://codereview.chromium.org/20419
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1298 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-02-18 13:04:28 +00:00
ager@chromium.org
d81fad1766
Fix debugger function that treated retry-after-gc failure as an
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exception.
Minor indentation cleanup.
Review URL: http://codereview.chromium.org/20404
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1279 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-02-16 13:31:13 +00:00
lrn@chromium.org
3e2712e018
Lots of small optimizations, and one that is measurable (speeds up celtickane-array signficantly).
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git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1276 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-02-16 10:18:34 +00:00
kmillikin@chromium.org
46023fb742
Fix for off-by-one when initializing a constant or function
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declaration that was not a slot.
Review URL: http://codereview.chromium.org/19745
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1203 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-02-02 12:05:13 +00:00
whessev8
78de0cef11
Fixes two lint errors in codegen-ia32.cc.
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Review URL: http://codereview.chromium.org/18743
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1146 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-01-26 10:32:39 +00:00
whessev8
8faf0da7b6
Revert change to Smi check that was a performance regression.
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Review URL: http://codereview.chromium.org/18582
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1143 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-01-26 09:15:48 +00:00
whessev8
29d28e7cc9
Optimizes an assembly-language conversion from int to Smi in codegen.
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Review URL: http://codereview.chromium.org/18551
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1137 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-01-23 13:58:49 +00:00
whessev8
ffd1b25cfb
Optimizes check for Smi range in the code generator.
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The check whether a 32-bit signed integer is in the Smi
range is now Sign bit( value + 0x40000000 ) == 0,
done with a single cmp instruction.
Review URL: http://codereview.chromium.org/18710
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1134 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-01-23 13:06:15 +00:00
kmillikin@chromium.org
74a17e90fc
Fix incorrect issue number.
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Review URL: http://codereview.chromium.org/18493
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1124 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-01-22 12:52:39 +00:00
ager@chromium.org
47d1298236
Change the handling of catch blocks to use context extension objects
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instead of normal JSObjects.
This ensures that __proto__ and accessors on the Object prototype do
not interfere with catch scopes. Also, it fixes the bug that catch
variables were not DontDelete (issue 74).
Next step is to create special lookup routines for context extension
objects and remove the special handling of context extension objects
from the general javascript object lookup routines.
Review URL: http://codereview.chromium.org/18143
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1091 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-01-16 09:42:08 +00:00
christian.plesner.hansen@gmail.com
4e78736900
Fixed build with no ENABLE_LOGGING_AND_PROFILING
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git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1039 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-01-07 14:24:08 +00:00
christian.plesner.hansen@gmail.com
afcc36a417
Added runtime call to the logging infrastructure. Made some changes
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to the way regexps are being logged.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1028 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-01-06 13:24:52 +00:00
ager@chromium.org
5f1ef9cbf8
Update comment and add assert.
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Fix typo where underscore is used instead of a dash.
Review URL: http://codereview.chromium.org/16238
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1019 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-12-23 08:58:56 +00:00
ager@chromium.org
3f383346aa
Inline array loads in loops directly in the code instead of always
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calling a stub. The map to check against is unknown when generating
the code, so we patch the map check in the IC initialization code.
Loop nesting is currently not tracked on ARM. I'll file feature
request bug reports for implementing this on ARM and add the number to
the TODOs before I commit.
Review URL: http://codereview.chromium.org/16409
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1015 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-12-22 12:56:32 +00:00
olehougaard
392e6f849b
Fixing a subtle bug in receiver resolution when a thrown and caught function is called from a catch-block.
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Second attempt - now with better memory efficiency.
Review URL: http://codereview.chromium.org/14834
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@999 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-12-18 11:28:13 +00:00
sgjesse@chromium.org
e116a24896
Removed some unused code to make Linux builders happy.
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TBR=ager
Review URL: http://codereview.chromium.org/14189
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@986 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-12-17 09:02:31 +00:00
sgjesse@chromium.org
b3dd6b686a
Refactored the recording of source position in the generated code. The code generator now has two methods
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void CodeForStatement(Node* node)
void CodeForSourcePosition(int pos)
The first is used to indicate that code is about to be generated for the given statement and the second is used to indicate that code is about to be generated for the given source position.
Added position information for some statements which was missing whem.
Updated the code generator for ARM to emit source position the same way as for IA-32.
Added an assert to ensure that deferred code stubs will always have a source source position as if it has not it will take whatever source position before which makes no sense.
The passing test on ARM has only been tested using the simulator.
Review URL: http://codereview.chromium.org/14170
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@985 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-12-17 08:45:42 +00:00
olehougaard
f7168008ea
Introduced a TempAssign utility because I just couldn't watch this anymore. YMMV.
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Review URL: http://codereview.chromium.org/14422
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@976 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-12-15 08:55:35 +00:00
kmillikin@chromium.org
6ef835e5d2
A recursive call to the code generator could (conceivably) clobber any
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register. Generate code to evaluate both arguments of FastCharCodeAt
before popping either from the stack.
Review URL: http://codereview.chromium.org/13706
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@958 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-12-10 13:49:19 +00:00
olehougaard
2b72eeedfb
Change implementation of eval to make an exact distinction between direct eval and aliased eval.
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Review URL: http://codereview.chromium.org/12673
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@860 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-11-27 13:55:06 +00:00
ager@chromium.org
95d1d40077
Revert r819, 821, and 822 which caused a big performance regression
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git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@823 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-11-21 15:01:41 +00:00
olehougaard
3877c91a19
Fixing the detection of aliased eval so that it is exact.
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Fixing the semantics of aliased eval so that it is conformant.
Review URL: http://codereview.chromium.org/11563
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@819 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-11-21 12:49:57 +00:00
kasperl@chromium.org
7940adb1ec
Track loop nesting across function calls when the function
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is called through an IC the first time.
Review URL: http://codereview.chromium.org/10746
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@764 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-11-17 05:50:52 +00:00
kmillikin@chromium.org
45e88ce988
Minor cleanup of the code generators to reduce (eventual) register
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pressure and to avoid gratuitous merges in the CFG. No real
performance impact is expected.
Review URL: http://codereview.chromium.org/10404
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@739 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-11-12 11:00:12 +00:00
deanm@chromium.org
8bea254650
Use shorter encoding for mov REG, IMM. Use Set() in two places to generate smaller code when the immediate is 0.
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git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@728 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-11-11 06:10:07 +00:00
deanm@chromium.org
8ee441ea9f
Use shorter SIB encoding. For example, the previous:
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8d044500000000 lea eax,[eax*2+0x0]
Will be encoded with the much shorter:
8d0400 lea eax,[eax+eax*1]
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@722 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-11-09 17:48:34 +00:00
kmillikin@chromium.org
6edea51f89
Reporting -1 as the size of an ILLEGAL reference which actually has
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size 0 was too cute.
Review URL: http://codereview.chromium.org/9689
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@709 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-11-07 08:58:23 +00:00
kmillikin@chromium.org
bdb896cc40
Emit pushes and pops through the virtual frame on ARM. Merging of
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frames is not yet handled. The ARM code generator should be back in
line with the IA32 one.
Review URL: http://codereview.chromium.org/9182
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@706 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-11-07 08:21:07 +00:00
ager@chromium.org
439f3e6708
Do not put failures in handles.
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Assert in the Handle constructor that the object is not a failure.
I have run our own tests in debug mode and the WebKit layout tests in
debug mode and there are no regressions.
Review URL: http://codereview.chromium.org/9114
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@691 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-11-04 16:23:56 +00:00
lrn@chromium.org
4e3bbd8247
If a HeapNumber is the incoming value, it must be converted to Smi before
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checking. This is not done in a fast way.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@679 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-11-03 13:33:13 +00:00
kmillikin@chromium.org
ec3c4ced39
Reverted 671.
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git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@673 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-10-31 13:18:52 +00:00
kmillikin@chromium.org
67ae89e417
Simplify the way we materialize boolean values that are not yet pushed
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on the stack frame.
Review URL: http://codereview.chromium.org/8764
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@671 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-10-31 11:55:06 +00:00
kasperl@chromium.org
a2be3b6f84
Make sure that allocations through CALL_HEAP_FUNCTION
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and runtime calls from JavaScript will always succeed
eventually if we have enough memory.
Review URL: http://codereview.chromium.org/8700
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@646 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-10-30 09:15:58 +00:00
iposva@chromium.org
156c1323e3
Fix out-of-date comment.
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TBR=ager
Review URL: http://codereview.chromium.org/8708
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@644 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-10-29 18:31:55 +00:00
kasperl@chromium.org
a26b3535de
Allow three runtime call attempts before throwing an out of
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memory exception. Still needs work in Runtime_PerformGC to
make sure we'll allow future allocations.
Review URL: http://codereview.chromium.org/8873
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@638 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-10-29 12:16:34 +00:00
iposva@chromium.org
35939fd987
Track whether a node or variable are likely to be a Smi value. Propagate that
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knowledge in the AST and inline the Smi check into the generated code if it
is deemed high value (e.g. in loops).
Review URL: http://codereview.chromium.org/8835
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@630 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-10-28 22:33:00 +00:00
kasperl@chromium.org
2dcb4d2c59
Fix issue 120 by patching the on-stack receiver in the
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IC stubs for calls just before invoking the target
function instead of doing it before resolving the
function.
Review URL: http://codereview.chromium.org/8192
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@607 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-10-27 14:12:02 +00:00
erik.corry@gmail.com
0fc72f2b4e
Serendipitously arrange the tags so that String.length() becomes a branch-free
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operation. I have another version of this change that does not remove the
special inline caches for difference sized strings. The other version is ever
so slightly faster, but the nice thing about this version is that it removes
253 lines of code.
Review URL: http://codereview.chromium.org/8187
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@603 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-10-27 12:39:34 +00:00
kasperl@chromium.org
4e4fc50842
Get ready for fixing issue 120: Pin point the places
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where the receiver needs to be patched with the proxy
and get ready of unnecessary function patching on ARM.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@591 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-10-24 12:58:17 +00:00
kmillikin@chromium.org
681ae19bd4
Change a few runtime functions that took and returned a dummy argument
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to instead take no arguments and return the undefined value.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@584 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-10-24 10:13:22 +00:00
erik.corry@gmail.com
dbc6dd66e4
Fix some style issues.
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Review URL: http://codereview.chromium.org/8055
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@563 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-10-23 07:28:21 +00:00
kmillikin@chromium.org
65821f321c
Rename member variables and functions and clarify comments to try to
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make the operation of LabelShadows more understandable.
Review URL: http://codereview.chromium.org/7868
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@556 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-10-22 12:45:33 +00:00
bak@chromium.org
bf948c8313
- Optimized CopyFixedArray and CopyJSObject.
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- Refactored block copying.
Review URL: http://codereview.chromium.org/7863
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@548 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-10-22 08:21:18 +00:00