<html>
    <head>
      <base href="https://bugs.llvm.org/">
    </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 - Clang-5+ crashes running llvm::sroa::AllocaSlices::SliceBuilder::visitStoreInst"
   href="https://bugs.llvm.org/show_bug.cgi?id=41205">41205</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Clang-5+ crashes running llvm::sroa::AllocaSlices::SliceBuilder::visitStoreInst
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </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>-New Bugs
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>amir.shavit@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
          </td>
        </tr></table>
      <p>
        <div>
        <pre>A minimal example to produce the crash:

#include <optional>
#include <string>

struct A {
    std::string s;
};

struct B : A {
    std::optional<int> maybe;
};

B test() { 
    return {"one", 1};
}

Compile with -O3 -std=c++17 
Crashes clang 5/6/7/8/trunk.

Also available here: <a href="https://godbolt.org/z/uxyY8u">https://godbolt.org/z/uxyY8u</a></pre>
        </div>
      </p>


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