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      <base href="https://bugs.llvm.org/">
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - X86AvoidStoreForwardingBlocks breaks -verify-machineinstrs"
   href="https://bugs.llvm.org/show_bug.cgi?id=37153">37153</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>X86AvoidStoreForwardingBlocks breaks -verify-machineinstrs
          </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>francisvm@yahoo.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>This patch: <a href="https://reviews.llvm.org/D41330">https://reviews.llvm.org/D41330</a> seems to break when building the
test suite with -verify-machineinstrs.

Failed on Green Dragon here:

<a href="http://green.lab.llvm.org/green/job/test-suite-verify-machineinstrs-x86_64h-O3/1522/">http://green.lab.llvm.org/green/job/test-suite-verify-machineinstrs-x86_64h-O3/1522/</a>

There are many failures, but here is an example:

*** Bad machine code: Using a killed virtual register ***
- function:   
_Z77FftConvolve128x128xCZHalide_x86_64_linux_c_plus_plus_name_mangling_no_runtimeP15halide_buffer_tS0_S0_
- basic block: %bb.32 true_bb (0x7fcc7812ee60)
- instruction: MOV64mr killed %487:gr64, 1, $noreg, 40, $noreg, %4569:gr64 ::
(store 8 into %ir.185 + 8, align 4)

- operand 0:   killed %487:gr64

from 

test-suite/Bitcode/Regression/fft/modules/FftConvolve128x128xCZHalide_x86_64_linux_c_plus_plus_name_mangling_no_runtime.bc</pre>
        </div>
      </p>


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