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Date: Wed, 1 Nov 2006 03:12:18 -0800 (PST)
From: "Mikhail Fursov (JIRA)" <jira@apache.org>
To: harmony-commits@incubator.apache.org
Subject: [jira] Commented: (HARMONY-1908) [drlvm][opt] failed assert in
 ControlFlowGraph
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    [ http://issues.apache.org/jira/browse/HARMONY-1908?page=comments#action_12446206 ] 
            
Mikhail Fursov commented on HARMONY-1908:
-----------------------------------------

The patch for 1969 fixes this problem too.
So no need to remove the assertion in CFG. The reason of failure was inconsistent loop structure.

> [drlvm][opt] failed assert in ControlFlowGraph
> ----------------------------------------------
>
>                 Key: HARMONY-1908
>                 URL: http://issues.apache.org/jira/browse/HARMONY-1908
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>         Environment: SUSE 9
>            Reporter: Alexey Varlamov
>
> Steps to reproduce:
> ./java -Xem:opt -cp $classlib/modules/nio/bin/test:junit.jar junit.textui.TestRunner org.apache.harmony.nio.tests.java.nio.channels.SelectionKeyTest
> java: /export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/jitrino/src/shared/ControlFlowGraph.cpp:384: bool Jitrino::ControlFlowGraph::isEdgeProfileConsistent(bool, bool, bool): Assertion `doAssert?false:true' failed.
> SIGABRT in VM code.
> Stack trace:
> 	1: ?? (??:-1)
> 	2: abort (??:-1)
> 	3: __assert_fail (??:-1)
> 	4: Jitrino::ControlFlowGraph::isEdgeProfileConsistent(bool, bool, bool) (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/jitrino/src/shared/ControlFlowGraph.cpp:385)
> 	5: Jitrino::ControlFlowGraph::smoothEdgeProfile() (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/jitrino/src/shared/ControlFlowGraph.cpp:947)
> 	6: Jitrino::StaticProfiler::estimateGraph(Jitrino::IRManager&, double, bool) (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/jitrino/src/dynopt/StaticProfiler.cpp:253)
> 	7: Jitrino::StaticProfilerPass::_run(Jitrino::IRManager&) (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/jitrino/src/dynopt/StaticProfiler.cpp:293)
> 	8: Jitrino::OptPass::run() (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/jitrino/src/optimizer/optpass.cpp:61)
> 	9: Jitrino::runPipeline(Jitrino::CompilationContext*) (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/jitrino/src/main/Jitrino.cpp:226)
> 	10: Jitrino::compileMethod(Jitrino::CompilationContext*) (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/jitrino/src/main/Jitrino.cpp:261)
> 	11: Jitrino::Jitrino::CompileMethod(Jitrino::CompilationContext*) (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/jitrino/src/main/Jitrino.cpp:286)
> 	12: JIT_compile_method_with_params (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/jitrino/src/vm/drl/DrlJITInterface.cpp:282)
> 	13: Dll_JIT::compile_method_with_params(void*, Method*, OpenMethodExecutionParams) (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/vmcore/include/dll_jit_intf.h:86)
> 	14: compile_do_compilation_jit(Method*, JIT*) (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/vmcore/src/jit/compile.cpp:700)
> 	15: vm_compile_method (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/vmcore/src/class_support/C_Interface.cpp:2538)
> 	16: DrlEMImpl::compileMethod(Method*) (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/em/src/DrlEMImpl.cpp:520)
> 	17: CompileMethod (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/em/src/em_intf.cpp:49)
> 	18: compile_do_compilation (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/vmcore/src/jit/compile.cpp:780)
> 	19: compile_jit_a_method(Method*) (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/vmcore/src/jit/compile.cpp:828)
> 	20: IP is 0x410D0172 <native code>
> 	21: java/nio/channels/spi/AbstractSelectableChannel.register(Ljava/nio/channels/Selector;ILjava/lang/Object;)Ljava/nio/channels/SelectionKey; (AbstractSelectableChannel.java:-1)
> SIGSEGV in VM code.
> Stack trace:
> 	22: Jitrino::Ia32::StackInfo::readByteSize(unsigned char const*) const (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/jitrino/src/codegenerator/ia32/Ia32StackInfo.cpp:107)
> 	23: Jitrino::Ia32::RuntimeInterface::getBcLocationForNative(Jitrino::MethodDesc*, unsigned long long, unsigned short*) (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/jitrino/src/codegenerator/ia32/Ia32RuntimeInterface.cpp:78)
> 	24: Jitrino::Jitrino::GetBcLocationForNative(Jitrino::MethodDesc*, unsigned long long, unsigned short*) (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/jitrino/src/main/Jitrino.cpp:358)
> 	25: get_bc_location_for_native (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/jitrino/src/vm/drl/DrlJITInterface.cpp:590)
> 	26: Dll_JIT::get_bc_location_for_native(Method*, void*, unsigned short*) (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/vmcore/include/dll_jit_intf.h:240)
> 	27: get_file_and_line (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/vmcore/src/stack/stack_trace.cpp:60)
> 	28: st_get_java_method_info (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/vmcore/src/stack/stack_dump.cpp:196)
> 	29: st_print_stack(Registers*) (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/vmcore/src/stack/stack_dump.cpp:242)
> 	30: abort_handler(int, siginfo*, void*) (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/vmcore/src/util/linux/signals_ia32.cpp:614)
> <end of stack trace>

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