[LLVMbugs] [Bug 2257] New: Assertion in FP stackifier

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=2257

           Summary: Assertion in FP stackifier
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Backend: X86
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: asl at math.spbu.ru
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=1609)
 --> (http://llvm.org/bugs/attachment.cgi?id=1609)
Bytecode

Consider attached bytecode.

$ ./llc bugpoint-reduced-simplified.bc 
llc: /home/asl/proj/llvm/src/lib/Target/X86/X86FloatingPoint.cpp:975:
void<unnamed>::FPS::handleSpecialFP(llvm::ilist_iterator<llvm::MachineInstr>&):
Assertion `StackTop == 1 && "Stack should have one element on it to return!"'
failed.
./llc[0x878a1ad]
/lib/libc.so.6(abort+0xe8)[0xb7c687e8]
/lib/libc.so.6(__assert_fail+0xdf)[0xb7c6040f]
./llc[0x82a9f66]


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