[LLVMbugs] [Bug 22393] New: Assertion failed: (Offset <= PieceOffset && "overlapping or duplicate pieces"), function emitLocPieces, lib/CodeGen/AsmPrinter/DwarfDebug.cpp:1676

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=22393

            Bug ID: 22393
           Summary: Assertion failed: (Offset <= PieceOffset &&
                    "overlapping or duplicate pieces"), function
                    emitLocPieces,
                    lib/CodeGen/AsmPrinter/DwarfDebug.cpp:1676
           Product: libraries
           Version: 3.6
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: DebugInfo
          Assignee: unassignedbugs at nondot.org
          Reporter: compnerd at compnerd.org
                CC: aprantl at apple.com, llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 13767
  --> http://llvm.org/bugs/attachment.cgi?id=13767&action=edit
reduced.cc

Seems that we can trigger an overlapping range for a variable piece with
optimizations on master.  At least triggers on x86_64 (may occur on other
targets).

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