Bug 125052 - Instead of watchpointing activation allocation, we should watchpoint entry into functions that have captured variables
Summary: Instead of watchpointing activation allocation, we should watchpoint entry in...
Alias: None
Product: WebKit
Classification: Unclassified
Component: JavaScriptCore (show other bugs)
Version: 528+ (Nightly build)
Hardware: All All
: P2 Normal
Assignee: Filip Pizlo
Depends on:
Blocks: 124630
  Show dependency treegraph
Reported: 2013-12-01 18:15 PST by Filip Pizlo
Modified: 2013-12-02 11:06 PST (History)
8 users (show)

See Also:

stuff (13.05 KB, patch)
2013-12-01 18:23 PST, Filip Pizlo
no flags Details | Formatted Diff | Diff
the patch (15.54 KB, patch)
2013-12-01 18:53 PST, Filip Pizlo
mhahnenberg: review+
Details | Formatted Diff | Diff

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Description Filip Pizlo 2013-12-01 18:15:42 PST
Patch forthcoming.
Comment 1 Filip Pizlo 2013-12-01 18:23:45 PST
Created attachment 218129 [details]
Comment 2 Filip Pizlo 2013-12-01 18:53:09 PST
Created attachment 218131 [details]
the patch
Comment 3 WebKit Commit Bot 2013-12-01 18:54:57 PST
Attachment 218131 [details] did not pass style-queue:

Failed to run "['Tools/Scripts/check-webkit-style', '--diff-files', u'Source/JavaScriptCore/ChangeLog', u'Source/JavaScriptCore/bytecode/BytecodeLivenessAnalysis.cpp', u'Source/JavaScriptCore/bytecode/CodeBlock.cpp', u'Source/JavaScriptCore/bytecode/Opcode.h', u'Source/JavaScriptCore/bytecode/Watchpoint.h', u'Source/JavaScriptCore/bytecompiler/BytecodeGenerator.cpp', u'Source/JavaScriptCore/dfg/DFGByteCodeParser.cpp', u'Source/JavaScriptCore/dfg/DFGCapabilities.cpp', u'Source/JavaScriptCore/dfg/DFGWatchpointCollectionPhase.cpp', u'Source/JavaScriptCore/jit/JIT.cpp', u'Source/JavaScriptCore/jit/JIT.h', u'Source/JavaScriptCore/jit/JITOpcodes.cpp', u'Source/JavaScriptCore/llint/LowLevelInterpreter.asm', u'Source/JavaScriptCore/runtime/CommonSlowPaths.cpp', u'Source/JavaScriptCore/runtime/CommonSlowPaths.h', u'Source/JavaScriptCore/runtime/JSActivation.h', u'Source/JavaScriptCore/runtime/SymbolTable.cpp', u'Source/JavaScriptCore/runtime/SymbolTable.h']" exit_code: 1
Source/JavaScriptCore/jit/JIT.cpp:165:  Non-label code inside switch statements should be indented.  [whitespace/indent] [4]
Total errors found: 1 in 18 files

If any of these errors are false positives, please file a bug against check-webkit-style.
Comment 4 Mark Hahnenberg 2013-12-02 10:56:11 PST
Comment on attachment 218131 [details]
the patch

View in context: https://bugs.webkit.org/attachment.cgi?id=218131&action=review

r=me with comments.

> Source/JavaScriptCore/dfg/DFGByteCodeParser.cpp:3012
>                      addToGraph(ActivationAllocationWatchpoint, OpInfo(activation->symbolTable()));

Maybe rename ActivationAllocationWatchpoint to FunctionReentryWatchpoint?

> Source/JavaScriptCore/dfg/DFGWatchpointCollectionPhase.cpp:129
>          case ActivationAllocationWatchpoint:

Comment 5 Filip Pizlo 2013-12-02 11:06:47 PST
Landed in http://trac.webkit.org/changeset/159942