Changeset 72360 in webkit for trunk/JavaScriptCore/jit/JIT.cpp

Timestamp:

Nov 18, 2010, 6:35:25 PM (15 years ago)

Author:

[email protected]

Message:

Bug 49708 - Stop recompiling functions to regenerate exception info.

Reviewed by Oliver Hunt.

Instead only hold info as necessary – keep divot info is the inspector
is enabled, line number info is debugging or profiling, and handler
info for functions with try/catch.

JavaScriptCore:

• bytecode/CodeBlock.cpp:

(JSC::CodeBlock::dumpStatistics):
(JSC::CodeBlock::CodeBlock):
(JSC::CodeBlock::lineNumberForBytecodeOffset):
(JSC::CodeBlock::expressionRangeForBytecodeOffset):
(JSC::CodeBlock::shrinkToFit):

• bytecode/CodeBlock.h:

(JSC::CodeBlock::bytecodeOffset):
(JSC::CodeBlock::addExpressionInfo):
(JSC::CodeBlock::addLineInfo):
(JSC::CodeBlock::hasExpressionInfo):
(JSC::CodeBlock::hasLineInfo):
(JSC::CodeBlock::needsCallReturnIndices):
(JSC::CodeBlock::callReturnIndexVector):

• bytecode/SamplingTool.cpp:

(JSC::SamplingTool::dump):

• bytecompiler/BytecodeGenerator.cpp:

(JSC::BytecodeGenerator::generate):
(JSC::BytecodeGenerator::BytecodeGenerator):

• bytecompiler/BytecodeGenerator.h:

(JSC::BytecodeGenerator::emitNode):
(JSC::BytecodeGenerator::emitNodeInConditionContext):
(JSC::BytecodeGenerator::emitExpressionInfo):
(JSC::BytecodeGenerator::addLineInfo):

• interpreter/Interpreter.cpp:

(JSC::Interpreter::unwindCallFrame):
(JSC::appendSourceToError):
(JSC::Interpreter::throwException):
(JSC::Interpreter::privateExecute):
(JSC::Interpreter::retrieveLastCaller):

• interpreter/Interpreter.h:
• jit/JIT.cpp:

(JSC::JIT::privateCompile):

• jit/JITStubs.cpp:

(JSC::jitThrow):
(JSC::DEFINE_STUB_FUNCTION):

• runtime/Collector.cpp:

(JSC::Heap::markRoots):

• runtime/Executable.cpp:

(JSC::EvalExecutable::compileInternal):
(JSC::ProgramExecutable::compileInternal):
(JSC::FunctionExecutable::compileForCallInternal):
(JSC::FunctionExecutable::compileForConstructInternal):

• runtime/Executable.h:
• runtime/JSGlobalData.cpp:

(JSC::JSGlobalData::JSGlobalData):

• runtime/JSGlobalData.h:

(JSC::JSGlobalData::usingAPI):

• runtime/JSGlobalObject.h:

(JSC::JSGlobalObject::supportsRichSourceInfo):
(JSC::JSGlobalObject::globalData):

WebCore:

• bindings/js/JSDOMWindowBase.cpp:

(WebCore::JSDOMWindowBase::supportsRichSourceInfo):

• report to JSC whether the inspector is enabled - in which case we will generate better error messages on exceptions.

• bindings/js/JSDOMWindowBase.h:

WebKitTools:

• DumpRenderTree/mac/DumpRenderTree.mm:

(shouldEnableDeveloperExtras):

• always enable the developer tools from DRT, to ensure we produce rich error messages on JavaScript exceptions.

File:

• trunk/JavaScriptCore/jit/JIT.cpp (modified) (1 diff)

trunk/JavaScriptCore/jit/JIT.cpp

@@ -553 +553 @@
     }
 
-    if (m_codeBlock->hasExceptionInfo()) {
+    if (m_codeBlock->needsCallReturnIndices()) {
         m_codeBlock->callReturnIndexVector().reserveCapacity(m_calls.size());
         for (Vector<CallRecord>::iterator iter = m_calls.begin(); iter != m_calls.end(); ++iter)