<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 - ICE when compiling with -fopenmp and Catch2 unit test suite"
   href="https://bugs.llvm.org/show_bug.cgi?id=42586">42586</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>ICE when compiling with -fopenmp and Catch2 unit test suite
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </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>enhancement
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>C++17
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>ldalessandro@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>blitzrakete@gmail.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=22230" name="attach_22230" title="reduced test case">attachment 22230</a> <a href="attachment.cgi?id=22230&action=edit" title="reduced test case">[details]</a></span>
reduced test case

Lukes-MacBook:test ldalessa$ clang++ --version
Apple LLVM version 10.0.1 (clang-1001.0.46.4)
Target: x86_64-apple-darwin18.6.0
Thread model: posix
InstalledDir:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
Lukes-MacBook:test ldalessa$ clang++ --version
Apple LLVM version 10.0.1 (clang-1001.0.46.4)
Target: x86_64-apple-darwin18.6.0
Thread model: posix
InstalledDir:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
Lukes-MacBook:test ldalessa$ cat test.cpp 
#include <catch.hpp>

TEST_CASE ("Test", "") {
  auto t0 = std::make_tuple();
  REQUIRE (std::tuple_size_v<decltype(t0)> == 0);
}
Lukes-MacBook:test ldalessa$ clang++ -Xclang -fopenmp -std=c++17 -save-temps -o
test.o -c test.cpp
clang: error: unable to execute command: Illegal instruction: 4
clang: error: clang frontend command failed due to signal (use -v to see
invocation)
Apple LLVM version 10.0.1 (clang-1001.0.46.4)
Target: x86_64-apple-darwin18.6.0
Thread model: posix
InstalledDir:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
clang: note: diagnostic msg: PLEASE submit a bug report to
<a href="http://developer.apple.com/bugreporter/">http://developer.apple.com/bugreporter/</a> and include the crash backtrace,
preprocessed source, and associated run script.
clang: note: diagnostic msg: 
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg:
/var/folders/nm/j3bknc2n2t7f8llmt1m8j4680000gn/T/test-36c4ea.cpp
clang: note: diagnostic msg:
/var/folders/nm/j3bknc2n2t7f8llmt1m8j4680000gn/T/test-36c4ea.sh
clang: note: diagnostic msg: Crash backtrace is located in
clang: note: diagnostic msg:
/Users/ldalessa/Library/Logs/DiagnosticReports/clang_<YYYY-MM-DD-HHMMSS>_<hostname>.crash
clang: note: diagnostic msg: (choose the .crash file that corresponds to your
crash)
clang: note: diagnostic msg: 

********************</pre>
        </div>
      </p>


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