<html>
    <head>
      <base href="https://llvm.org/bugs/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - X86 make check has a bunch of machine verifier errors"
   href="https://llvm.org/bugs/show_bug.cgi?id=27481">27481</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>X86 make check has a bunch of machine verifier errors
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>libraries
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>trunk
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Backend: X86
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>qcolombet@apple.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>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/X86/cleanuppad-inalloca.ll
    LLVM :: CodeGen/X86/cmpxchg-clobber-flags.ll
    LLVM :: CodeGen/X86/cxx_tlscc64.ll
    LLVM :: CodeGen/X86/darwin-tls.ll
    LLVM :: CodeGen/X86/fast-isel-nontemporal.ll
    LLVM :: CodeGen/X86/i386-tlscall-fastregalloc.ll
    LLVM :: CodeGen/X86/implicit-null-check.ll
    LLVM :: CodeGen/X86/inalloca-ctor.ll
    LLVM :: CodeGen/X86/inalloca-invoke.ll
    LLVM :: CodeGen/X86/inalloca-regparm.ll
    LLVM :: CodeGen/X86/inalloca-stdcall.ll
    LLVM :: CodeGen/X86/inalloca.ll
    LLVM :: CodeGen/X86/machine-sink-and-implicit-null-checks.ll
    LLVM :: CodeGen/X86/musttail-indirect.ll
    LLVM :: CodeGen/X86/musttail-thiscall.ll
    LLVM :: CodeGen/X86/musttail-varargs.ll
    LLVM :: CodeGen/X86/peephole-na-phys-copy-folding.ll
    LLVM :: CodeGen/X86/pku.ll
    LLVM :: CodeGen/X86/rtm.ll
    LLVM :: CodeGen/X86/scheduler-backtracking.ll
    LLVM :: CodeGen/X86/shrink-wrap-chkstk.ll
    LLVM :: CodeGen/X86/sibcall-2.ll
    LLVM :: CodeGen/X86/sibcall.ll
    LLVM :: CodeGen/X86/stack-folding-fp-avx1.ll
    LLVM :: CodeGen/X86/stack-folding-fp-sse42.ll
    LLVM :: CodeGen/X86/tls-models.ll
    LLVM :: CodeGen/X86/tlv-1.ll
    LLVM :: CodeGen/X86/tlv-2.ll
    LLVM :: CodeGen/X86/win_coreclr_chkstk.ll
    LLVM :: CodeGen/X86/x32-function_pointer-1.ll
    LLVM :: CodeGen/X86/x86-64-stack-and-frame-ptr.ll
    LLVM :: CodeGen/X86/x86-interrupt_vzeroupper.ll
    LLVM :: CodeGen/X86/x86-shrink-wrapping.ll

This may be latent bugs.</pre>
        </div>
      </p>
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