[llvm-bugs] [Bug 27456] New: PPC make check has a bunch of machine verifier errors

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=27456

            Bug ID: 27456
           Summary: PPC make check has a bunch of machine verifier errors
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: PowerPC
          Assignee: unassignedbugs at nondot.org
          Reporter: qcolombet at apple.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Switching the machine verifier ON by default (lib/CodeGen/Passes.cpp then
change the default value of the cl::opt related to the machine verifier) leads
to a bunch of machine verifier errors for make check:
    LLVM :: CodeGen/PowerPC/2006-10-17-ppc64-alloca.ll
    LLVM :: CodeGen/PowerPC/2007-10-21-LocalRegAllocAssert.ll
    LLVM :: CodeGen/PowerPC/2007-10-21-LocalRegAllocAssert2.ll
    LLVM :: CodeGen/PowerPC/2007-11-16-landingpad-split.ll
    LLVM :: CodeGen/PowerPC/2012-10-11-dynalloc.ll
    LLVM :: CodeGen/PowerPC/2016-01-07-BranchWeightCrash.ll
    LLVM :: CodeGen/PowerPC/Frames-alloca.ll
    LLVM :: CodeGen/PowerPC/aantidep-inline-asm-use.ll
    LLVM :: CodeGen/PowerPC/atomic-2.ll
    LLVM :: CodeGen/PowerPC/atomics.ll
    LLVM :: CodeGen/PowerPC/cr-spills.ll
    LLVM :: CodeGen/PowerPC/cr_spilling.ll
    LLVM :: CodeGen/PowerPC/crsave.ll
    LLVM :: CodeGen/PowerPC/ctr-cleanup.ll
    LLVM :: CodeGen/PowerPC/ctrloop-intrin.ll
    LLVM :: CodeGen/PowerPC/ctrloop-large-ec.ll
    LLVM :: CodeGen/PowerPC/ctrloop-udivti3.ll
    LLVM :: CodeGen/PowerPC/dyn-alloca-offset.ll
    LLVM :: CodeGen/PowerPC/early-ret2.ll
    LLVM :: CodeGen/PowerPC/emutls_generic.ll
    LLVM :: CodeGen/PowerPC/fast-isel-fcmp-nan.ll
    LLVM :: CodeGen/PowerPC/fast-isel-load-store-vsx.ll
    LLVM :: CodeGen/PowerPC/indirectbr.ll
    LLVM :: CodeGen/PowerPC/merge-st-chain-op.ll
    LLVM :: CodeGen/PowerPC/negctr.ll
    LLVM :: CodeGen/PowerPC/p8-scalar_vector_conversions.ll
    LLVM :: CodeGen/PowerPC/ppc-shrink-wrapping.ll
    LLVM :: CodeGen/PowerPC/ppc-vaarg-agg.ll
    LLVM :: CodeGen/PowerPC/ppc32-pic-large.ll
    LLVM :: CodeGen/PowerPC/ppc32-pic.ll
    LLVM :: CodeGen/PowerPC/ppc64-anyregcc-crash.ll
    LLVM :: CodeGen/PowerPC/ppc64-anyregcc.ll
    LLVM :: CodeGen/PowerPC/ppc64-patchpoint.ll
    LLVM :: CodeGen/PowerPC/ppc64-stackmap.ll
    LLVM :: CodeGen/PowerPC/pr25157-peephole.ll
    LLVM :: CodeGen/PowerPC/pr25157.ll
    LLVM :: CodeGen/PowerPC/pr26180.ll
    LLVM :: CodeGen/PowerPC/pr26690.ll
    LLVM :: CodeGen/PowerPC/sj-ctr-loop.ll
    LLVM :: CodeGen/PowerPC/sjlj.ll
    LLVM :: CodeGen/PowerPC/stack-realign.ll
    LLVM :: CodeGen/PowerPC/stwux.ll
    LLVM :: CodeGen/PowerPC/vsx-fma-mutate-undef.ll
    LLVM :: CodeGen/PowerPC/vsx-self-copy.ll

This may be latent bugs.

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