[LLVMbugs] [Bug 3416] New: ice: Assertion `vi.AliveBlocks.none() && "Shouldn' t be alive across any blocks!"' failed.

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=3416

           Summary: ice: Assertion `vi.AliveBlocks.none() && "Shouldn't be
                    alive across any blocks!"' failed.
           Product: new-bugs
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: regehr at cs.utah.edu
                CC: llvmbugs at cs.uiuc.edu


Seen using r63072 on Ubuntu Hardy on x86.

regehr at john-home:~/volatile/tmp133$ llvm-gcc -O3 small.c
cc1: LiveIntervalAnalysis.cpp:425: void
llvm::LiveIntervals::handleVirtualRegisterDef(llvm::MachineBasicBlock*,
llvm::ilist_iterator<llvm::MachineInstr>, unsigned int, llvm::MachineOperand&,
unsigned int, llvm::LiveInterval&): Assertion `vi.AliveBlocks.none() &&
"Shouldn't be alive across any blocks!"' failed.
small.c:28: internal compiler error: Aborted
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter> for instructions.

regehr at john-home:~/volatile/tmp133$ cat small.c

long long foo (long long _si1, int _si2)
{
  return _si1 > 9223372036854775807LL - 1 ? _si1 : _si1 + _si2;
}

int bar (unsigned long long _ui1, int _ui2)
{
  return _ui1 * _ui2;
}

int g_78; 

int func_31 (int32p_32)
{
  unsigned long long l_33;
  for (l_33 = 1; l_33 < -13; l_33 = foo (l_33, 1))
    {
    }
  return l_33;
}

baz (uint32p_4)
{
  if (func (bar (g_78, func_31 (1))))
    {
    }
  return 0;
}


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