Changeset 189086 in webkit for trunk/Source/JavaScriptCore/jsc.cpp

Timestamp:

Aug 27, 2015, 10:59:44 PM (10 years ago)

Author:

[email protected]

Message:

Add noDFG() to jsc to prevent DFG compilation of a specified function.
​https://bugs.webkit.org/show_bug.cgi?id=148559

Reviewed by Geoffrey Garen and Saam Barati.

• API/JSCTestRunnerUtils.cpp:

(JSC::setNeverInline):
(JSC::setNeverOptimize):

• API/JSCTestRunnerUtils.h:
• bytecode/CodeBlock.cpp:

(JSC::CodeBlock::dumpAssumingJITType):

• dfg/DFGCapabilities.cpp:

(JSC::DFG::mightCompileEval):
(JSC::DFG::mightCompileProgram):
(JSC::DFG::mightCompileFunctionForCall):
(JSC::DFG::mightCompileFunctionForConstruct):
(JSC::DFG::mightInlineFunctionForCall):

• jsc.cpp:

(GlobalObject::finishCreation):
(functionNoDFG):

• runtime/Executable.h:

(JSC::ScriptExecutable::ecmaMode):
(JSC::ScriptExecutable::setNeverInline):
(JSC::ScriptExecutable::setNeverOptimize):
(JSC::ScriptExecutable::setDidTryToEnterInLoop):
(JSC::ScriptExecutable::neverInline):
(JSC::ScriptExecutable::neverOptimize):
(JSC::ScriptExecutable::didTryToEnterInLoop):
(JSC::ScriptExecutable::isInliningCandidate):
(JSC::ScriptExecutable::isOkToOptimize):
(JSC::ScriptExecutable::addressOfDidTryToEnterInLoop):

• runtime/TestRunnerUtils.cpp:

(JSC::setNeverInline):
(JSC::setNeverOptimize):
(JSC::optimizeNextInvocation):

• runtime/TestRunnerUtils.h:

File:

• trunk/Source/JavaScriptCore/jsc.cpp (modified) (3 diffs)

trunk/Source/JavaScriptCore/jsc.cpp

@@ -474 +474 @@
 static EncodedJSValue JSC_HOST_CALL functionPreciseTime(ExecState*);
 static EncodedJSValue JSC_HOST_CALL functionNeverInlineFunction(ExecState*);
+static EncodedJSValue JSC_HOST_CALL functionNoDFG(ExecState*);
 static EncodedJSValue JSC_HOST_CALL functionOptimizeNextInvocation(ExecState*);
 static EncodedJSValue JSC_HOST_CALL functionNumberOfDFGCompiles(ExecState*);
@@ -632 +633 @@
         addFunction(vm, "neverInlineFunction", functionNeverInlineFunction, 1);
         addFunction(vm, "noInline", functionNeverInlineFunction, 1);
+        addFunction(vm, "noDFG", functionNoDFG, 1);
         addFunction(vm, "numberOfDFGCompiles", functionNumberOfDFGCompiles, 1);
         addFunction(vm, "optimizeNextInvocation", functionOptimizeNextInvocation, 1);
@@ -1178 +1180 @@
 {
     return JSValue::encode(setNeverInline(exec));
+}
+
+EncodedJSValue JSC_HOST_CALL functionNoDFG(ExecState* exec)
+{
+    return JSValue::encode(setNeverOptimize(exec));
 }