[LLVMbugs] [Bug 19927] New: crash in X86 Atom LEA Fixup

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=19927

            Bug ID: 19927
           Summary: crash in X86 Atom LEA Fixup
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: spatel+llvm at rotateright.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 12594
  --> http://llvm.org/bugs/attachment.cgi?id=12594&action=edit
stepanov_abstraction.ll

With llc built from r210033 running on x86-64 Linux and the attached IR file
(which is derived from C++ source
test-suite/SingleSource/Adobe-C++/stepanov_abstraction.cpp):

$ ./llc -mcpu=atom stepanov_abstraction.ll 
0  llc             0x0000000000d03bc5 llvm::sys::PrintStackTrace(_IO_FILE*) +
37
1  llc             0x0000000000d043c3
2  libpthread.so.0 0x00007fcc32ae5340
3  llc             0x000000000089bf6b
llvm::MachineFunction::CreateMachineInstr(llvm::MCInstrDesc const&,
llvm::DebugLoc, bool) + 59
4  llc             0x000000000054e09a
5  llc             0x000000000054dc2e
6  llc             0x000000000054d570
7  llc             0x00000000008a229c
llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 124
8  llc             0x0000000000c9726b
llvm::FPPassManager::runOnFunction(llvm::Function&) + 539
9  llc             0x0000000000c974db
llvm::FPPassManager::runOnModule(llvm::Module&) + 43
10 llc             0x0000000000c97a57
llvm::legacy::PassManagerImpl::run(llvm::Module&) + 967
11 llc             0x00000000004f7096 main + 6374
12 libc.so.6       0x00007fcc31adbec5 __libc_start_main + 245
13 llc             0x00000000004f42ca
Stack dump:
0.    Program arguments: ./llc -mcpu=atom stepanov_abstraction.ll 
1.    Running pass 'Function Pass Manager' on module 'stepanov_abstraction.ll'.
2.    Running pass 'X86 Atom LEA Fixup' on function '@_Z13record_resultdPKc'
Segmentation fault (core dumped)

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