Changeset 153268 in webkit for trunk/Source/JavaScriptCore/ftl/FTLOutput.h

Timestamp:

Jul 24, 2013, 9:04:29 PM (12 years ago)

Author:

[email protected]

Message:

fourthTier: FTL should better report its compile-times and it should be able to run in a mode where it doesn't spend time generating OSR exits
​https://bugs.webkit.org/show_bug.cgi?id=118401

Reviewed by Sam Weinig.

Add two new OSR exit modes, which are useful only for playing with compile times:

• All OSR exits are llvm.trap().

• OSR exits don't take arguments and have no exit value marshaling.

• dfg/DFGPlan.cpp:

(JSC::DFG::Plan::compileInThread):
(JSC::DFG::Plan::compileInThreadImpl):

• dfg/DFGPlan.h:

(Plan):

• ftl/FTLIntrinsicRepository.h:

(FTL):

• ftl/FTLLowerDFGToLLVM.cpp:

(JSC::FTL::LowerDFGToLLVM::appendOSRExit):
(LowerDFGToLLVM):
(JSC::FTL::LowerDFGToLLVM::emitOSRExitCall):

• ftl/FTLOutput.h:

(JSC::FTL::Output::trap):

• runtime/Options.h:

(JSC):

File:

• trunk/Source/JavaScriptCore/ftl/FTLOutput.h (modified) (1 diff)

trunk/Source/JavaScriptCore/ftl/FTLOutput.h

@@ -348 +348 @@
     void unreachable() { buildUnreachable(m_builder); }
     
+    void trap()
+    {
+        call(trapIntrinsic());
+    }
     void crash()
     {