143102 2015-03-26 10:07:39 -0700 REGRESSION (181992-182000): Dromaeo/jslib-modify-prototype.html perf test fails with a JSC release assertion 2015-03-26 11:11:15 -0700 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) Unspecified Unspecified RESOLVED DUPLICATE 143098 InRadar P2 Normal --- 1 ap webkit-unassigned fpizlo ggaren rniwa slewis webkit-bug-importer oldest_to_newest 1080309 0 ap 2015-03-26 10:07:39 -0700 Presumably due to http://trac.webkit.org/changeset/181993 ? Running Dromaeo/jslib-modify-prototype.html (65 of 144) error: Dromaeo/jslib-modify-prototype.html Assertion failed: (getOperand(0)->getType() == getOperand(1)->getType() && "Both operands to ICmp instruction are not of the same type!"), function AssertOK, file /private/tmp/LLVM/include/llvm/IR/Instructions.h, line 973. 1 0x1120031b0 abort 2 0x11207d7dd llvm::ICmpInst::ICmpInst(llvm::CmpInst::Predicate, llvm::Value*, llvm::Value*, llvm::Twine const&) 3 0x11207d5ef llvm::IRBuilder<true, llvm::ConstantFolder, llvm::IRBuilderDefaultInserter<true> >::CreateICmp(llvm::CmpInst::Predicate, llvm::Value*, llvm::Value*, llvm::Twine const&) 4 0x112782489 LLVMBuildICmp 5 0x1062370f8 JSC::FTL::LowerDFGToLLVM::compileGetArrayLength() 6 0x10622d3e5 JSC::FTL::LowerDFGToLLVM::compileNode(unsigned int) 7 0x10622c9c8 JSC::FTL::LowerDFGToLLVM::compileBlock(JSC::DFG::BasicBlock*) 8 0x10622bbcb JSC::FTL::LowerDFGToLLVM::lower() 9 0x10622a4b9 JSC::FTL::lowerDFGToLLVM(JSC::FTL::State&) 10 0x106175afa JSC::DFG::Plan::compileInThreadImpl(JSC::DFG::LongLivedState&) 11 0x10617511d JSC::DFG::Plan::compileInThread(JSC::DFG::LongLivedState&, JSC::DFG::ThreadData*) 12 0x1061fce72 JSC::DFG::Worklist::runThread(JSC::DFG::ThreadData*) 13 0x1065a1dd3 WTF::threadEntryPoint(void*) 14 0x1065a22bf WTF::wtfThreadEntryPoint(void*) 15 0x7fff8e583268 _pthread_body 16 0x7fff8e5831e5 _pthread_body 17 0x7fff8e58141d thread_start 1080311 1 webkit-bug-importer 2015-03-26 10:08:20 -0700 <rdar://problem/20310664> 1080317 2 fpizlo 2015-03-26 10:16:48 -0700 This was probably fixed by https://trac.webkit.org/changeset/182009 https://bugs.webkit.org/show_bug.cgi?id=143098. 1080340 3 ap 2015-03-26 11:11:15 -0700 Yes, looks fixed. *** This bug has been marked as a duplicate of bug 143098 ***