[LLVMbugs] [Bug 14678] New: PPC64 clang self-host broken since r170108

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=14678

             Bug #: 14678
           Summary: PPC64 clang self-host broken since r170108
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: PowerPC
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: richard-llvm at metafoo.co.uk
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Since r170108, ppc64 clang bootstrap has been broken:

http://lab.llvm.org:8011/builders/clang-ppc64-elf-linux2?numbuilds=100

I don't believe that r170108 was itself broken; instead, I suspect that
increasing the size of the bitfield used in ASTWriter::WriteControlBlock has
triggered a CodeGen bug.

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