[LLVMbugs] [Bug 3244] New: ice: Don't know how to copy this physical register!

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=3244

           Summary: ice: Don't know how to copy this physical register!
           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 r61273 on Ubuntu Hardy on x86.

regehr at john-home:~/volatile/tmp81$ llvm-gcc -O2 small.c
cc1: ScheduleDAGRRList.cpp:781:
void<unnamed>::ScheduleDAGRRList::ListScheduleBottomUp(): Assertion `false &&
"Don't know how to copy this physical register!"' failed.
small.c:20: 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/tmp81$ cat small.c

typedef short int int16_t;
typedef char uint8_t;
typedef int uint32_t;
uint8_t
safe_mul_func_uint8_t_u_u (uint8_t _ui1, uint32_t _ui2)
{
  return _ui1 * _ui2;
}

int16_t g_62;
uint32_t g_487;
uint32_t func_85 (int16_t p_86, uint32_t p_87, uint32_t p_88);
uint32_t
func_42 (uint32_t p_43, uint32_t p_44, uint32_t p_45, uint32_t p_46)
{
  func_78 (func_85
           (safe_mul_func_uint8_t_u_u
            (func_7 (0xC22AAA77DD28626BLL, 1),
             (-2147483647 - 1 ? g_487 : 1) * g_62), 1, 1), p_46, 1);
}


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