Title: [188934] branches/jsc-tailcall/Source/_javascript_Core
- Revision
- 188934
- Author
- [email protected]
- Date
- 2015-08-25 15:09:26 -0700 (Tue, 25 Aug 2015)
Log Message
jsc-tailcall: Add an option to disable tail calls
https://bugs.webkit.org/show_bug.cgi?id=148447
Reviewed by Michael Saboff.
* bytecompiler/NodesCodegen.cpp:
(JSC::FunctionNode::emitBytecode):
* runtime/Options.h:
Modified Paths
Diff
Modified: branches/jsc-tailcall/Source/_javascript_Core/ChangeLog (188933 => 188934)
--- branches/jsc-tailcall/Source/_javascript_Core/ChangeLog 2015-08-25 22:01:18 UTC (rev 188933)
+++ branches/jsc-tailcall/Source/_javascript_Core/ChangeLog 2015-08-25 22:09:26 UTC (rev 188934)
@@ -1,3 +1,14 @@
+2015-08-25 Basile Clement <[email protected]>
+
+ jsc-tailcall: Add an option to disable tail calls
+ https://bugs.webkit.org/show_bug.cgi?id=148447
+
+ Reviewed by Michael Saboff.
+
+ * bytecompiler/NodesCodegen.cpp:
+ (JSC::FunctionNode::emitBytecode):
+ * runtime/Options.h:
+
2015-08-24 Michael Saboff <[email protected]>
jsc-tailcall: Specialized thunks need to save / restore callee save "tag" registers
Modified: branches/jsc-tailcall/Source/_javascript_Core/bytecompiler/NodesCodegen.cpp (188933 => 188934)
--- branches/jsc-tailcall/Source/_javascript_Core/bytecompiler/NodesCodegen.cpp 2015-08-25 22:01:18 UTC (rev 188933)
+++ branches/jsc-tailcall/Source/_javascript_Core/bytecompiler/NodesCodegen.cpp 2015-08-25 22:09:26 UTC (rev 188934)
@@ -3044,7 +3044,7 @@
generator.emitProfileControlFlow(startStartOffset());
generator.emitDebugHook(DidEnterCallFrame, startLine(), startStartOffset(), startLineStartOffset());
- if (isStrictMode() && generator.constructorKind() == ConstructorKind::None)
+ if (Options::enableTailCalls() && isStrictMode() && generator.constructorKind() == ConstructorKind::None)
emitStatementsBytecode(generator, generator.ignoredResult(), CanHaveTailCalls);
else
emitStatementsBytecode(generator, generator.ignoredResult());
Modified: branches/jsc-tailcall/Source/_javascript_Core/runtime/Options.h (188933 => 188934)
--- branches/jsc-tailcall/Source/_javascript_Core/runtime/Options.h 2015-08-25 22:01:18 UTC (rev 188933)
+++ branches/jsc-tailcall/Source/_javascript_Core/runtime/Options.h 2015-08-25 22:09:26 UTC (rev 188934)
@@ -117,6 +117,7 @@
v(bool, forceProfilerBytecodeGeneration, false, nullptr) \
\
v(bool, enableFunctionDotArguments, true, nullptr) \
+ v(bool, enableTailCalls, true, nullptr) \
\
/* showDisassembly implies showDFGDisassembly. */ \
v(bool, showDisassembly, false, "dumps disassembly of all JIT compiled code upon compilation") \
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