Changeset 127536 in webkit for trunk/Source/JavaScriptCore/bytecode/DFGExitProfile.h

Timestamp:

Sep 4, 2012, 6:27:50 PM (13 years ago)

Author:

[email protected]

Message:

DFG GetByVal for JSArrays shouldn't OSR exit every time that the index is out of bound
​https://bugs.webkit.org/show_bug.cgi?id=95717

Reviewed by Oliver Hunt.

Rolling back in after fixing the negative index case.

Make GetByVal for JSArrayOutOfBounds do meaningful things. The profiling was already
there so we should just use it!

• bytecode/DFGExitProfile.h:

(JSC::DFG::exitKindToString):

• dfg/DFGAbstractState.cpp:

(JSC::DFG::AbstractState::execute):

• dfg/DFGOperations.cpp:
• dfg/DFGOperations.h:
• dfg/DFGSpeculativeJIT.h:

(JSC::DFG::SpeculativeJIT::callOperation):

• dfg/DFGSpeculativeJIT32_64.cpp:

(JSC::DFG::SpeculativeJIT::compile):

• dfg/DFGSpeculativeJIT64.cpp:

(JSC::DFG::SpeculativeJIT::compile):

File:

• trunk/Source/JavaScriptCore/bytecode/DFGExitProfile.h (modified) (1 diff)

trunk/Source/JavaScriptCore/bytecode/DFGExitProfile.h

@@ -59 +59 @@
     case NegativeZero:
         return "NegativeZero";
+    case OutOfBounds:
+        return "OutOfBounds";
     case InadequateCoverage:
         return "InadequateCoverage";