<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 --- - compiler aborted with "Function return type does not match operand type of return inst!""
   href="https://llvm.org/bugs/show_bug.cgi?id=24386">24386</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>compiler aborted with "Function return type does not match operand type of return inst!"
          </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>Linux
          </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: ARM
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>chh@google.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>The test case is reduced from main-05c473.cpp in
<a href="https://code.google.com/p/android/issues/detail?id=182036">https://code.google.com/p/android/issues/detail?id=182036</a>

$ cat test.cpp

struct Vec2 {
    union {
        struct {
            float x, y;
        };
        float data[2];
    };
};
Vec2 getVec2()
{
    Vec2 out;
    union { Vec2* v; unsigned char* u; } x;
    x.v = &out;
    return out;
}


$ clang++ \
-cc1 \
-triple armv7-none-linux-androideabi \
-target-cpu cortex-a8 \
-target-abi aapcs-linux \
-mfloat-abi hard \
-x c++ -emit-llvm \
test.cpp


Clang++ aborted with error message:

Function return type does not match operand type of return inst!
  ret void <badref>
 %struct.Vec2 = type { %union.anon }fatal error: error in backend: Broken
function found, compilation aborted!</pre>
        </div>
      </p>
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