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
of the generated code. These can be used by the profiler to
categorize the ticks that occur within generated code and thereby show
more detailed information about where time is spent in generated code.
For instance, this is what the profiler displayed for a simple regexp
benchmark with irregexp-native before:
[JavaScript]:
total nonlib name
87.2% 87.2% RegExp: (?:\w*\W+)*
This is what we can display now:
[JavaScript]:
total nonlib name
87.2% 87.2% RegExp: (?:\w*\W+)*
- 53.0% 56.7% BranchOrBacktrack
- 14.9% 59.8% CheckCharacterLT
- 13.7% 20.4% CheckStackLimit
- 6.7% 6.7% SafeCall
- 2.7% 7.0% CheckCharacterGT
- 2.4% 2.4% SafeReturn
- 2.1% 2.1% LoadCurrentCharacter
- 1.8% 1.8% PushRegister
- 0.9% 0.9% PopRegister
- 0.9% 0.9% AdvanceRegister
- 0.3% 0.3% PopCurrentPosition
- 0.3% 0.3% CheckGreedyLoop
- 0.0% 20.4% PushBacktrack
- 0.0% 22.3% CheckCharacter
- 0.0% 2.4% IfRegisterLT
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1010 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
the alternatives in a choice node. The quick checks
are conservative in the sense that they only detect
failure with certainty. Checks can do 2 or 4 characters
at a time.
* Inline the quick checks to allow the alternatives to
be checked without branching in the common case where
they fail.
Review URL: http://codereview.chromium.org/14194
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1005 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
break location [condition]
clear <breakpoint #>
backtrace [from frame #] [to frame #]]
frame <frame #>
step [in | next | out| min [step count]]
print <expression>
source [from line [num lines]]
scripts
continue
help
It is enabled through the option --debugger which is on by default.
Review URL: http://codereview.chromium.org/14509
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@996 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
- Removed the potential for a NULL pointer access in
ContextSwitcher::PreemptionReceived.
- Removed a leak of the semaphore in the ContexSwitcher thread, by removing
the need for this semaphore entirely.
- Added a regression test case which will catch accesses to the ContextSwitcher
singleton after it has been stopped.
Review URL: http://codereview.chromium.org/14483
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@994 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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
single atom node. A flag was not set in this case, leading the wrapper
code to think the pattern was equal to the atom and use the pattern
in the indexOf operation.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@971 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
The main goal was to improve O(n^2) behavior when there are many object groups. The old API required the grouping to be done on the v8 side, along with a linear search. The new interface requires the caller to do the grouping, passing V8 entire groups at a time. This removes the group id concept on the v8 side.
- Changed AddObjectToGroup to AddObjectGroup.
- Removed the group id concept from the V8 side.
- Remove a static constructor while I'm here, lazily initialize
the object groups list.
- Cleaned up return by non-const references to return pointers.
Review URL: http://codereview.chromium.org/13341
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@965 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
initial node is interested in what precedes it the automaton is
given an initial all-consuming character class that determines it.
- Added verification of some node information invariants. We now
check that if a node expresses interest in what precedes it that
information is available to it after assertion expansion.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@964 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
