[LLVMbugs] [Bug 1259] NEW: LiveVars assertion handling inline assembler.

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=1259

           Summary: LiveVars assertion handling inline assembler.
           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: evan.cheng at apple.com


Consider attached bytecode. LLC results with:

./llc bugpoint-reduced-simplified.bc
llc: /home/asl/proj/llvm/src/lib/CodeGen/LiveInterval.cpp:189: llvm::LiveRange*
llvm::LiveInterval::addRangeFrom(llvm::LiveRange, llvm::LiveRange*): Assertion
`B->end <= Start && "Cannot overlap two LiveRanges with differing ValID's" "
(did you def the same reg twice in a MachineInstr?)"' failed.
./llc((anonymous namespace)::PrintStackTrace()+0x1f)[0x863177f]
/lib/libc.so.6(abort+0xe9)[0xb7d25229]
/lib/libc.so.6(__assert_fail+0xeb)[0xb7d1d4e3]
./llc(llvm::LiveInterval::addRangeFrom(llvm::LiveRange,
llvm::LiveRange*)+0x1ee)[0x84e4a0e]

I don't see anything wrong with the inline assembler itself.



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