[llvm-bugs] [Bug 50560] New: lambda implicit copy capture triggered from within an OpenMP critical section crashes

via llvm-bugs llvm-bugs at lists.llvm.org
Wed Jun 2 05:49:05 PDT 2021


https://bugs.llvm.org/show_bug.cgi?id=50560

            Bug ID: 50560
           Summary: lambda implicit copy capture triggered from within an
                    OpenMP critical section crashes
           Product: clang
           Version: 12.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++17
          Assignee: unassignedclangbugs at nondot.org
          Reporter: thierry.carrard at cea.fr
                CC: blitzrakete at gmail.com, erik.pilkington at gmail.com,
                    llvm-bugs at lists.llvm.org, richard-llvm at metafoo.co.uk

Created attachment 24902
  --> https://bugs.llvm.org/attachment.cgi?id=24902&action=edit
files generated during crash + console log + command line + original source

// the following code crashes clang (llvm project 12.0.0)
int main()
{
  for(int i=0;i<3;i++)
  {
    auto mylambda = [=](int& x)
    { 
#     pragma omp critical
      x+=i;
    };
    mylambda(i);
  }
  return 0;
}

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