[llvm-bugs] [Bug 26929] New: Core dump if compiled with -g in combination with lambda

via llvm-bugs llvm-bugs at lists.llvm.org
Sat Mar 12 16:21:58 PST 2016


https://llvm.org/bugs/show_bug.cgi?id=26929

            Bug ID: 26929
           Summary: Core dump if compiled with -g in combination with
                    lambda
           Product: clang
           Version: 3.7
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: eyenseo at gmail.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

As the title states - core dump if compiled with -g, optimisation level don't
matter.

Arch Linux x64, clang version 3.7.1

Minimal example is this:

#include <core/variant.hpp>

int main(int argc, char const* argv[]) {
  struct Test {
    core::variant<int, double> tmp;
  };
  const Test t{{1}};


  // BOOM
  [&t] { t.tmp.match([](const int& v) {}, [](const double& v) {}); }();
  // NO BOOM
  // t.tmp.match([](const int& v) {}, [](const double& v) {});
  // [&t] {}();

  return 0;
}

Where the header is from https://github.com/mnmlstc/core

That's all I can report ... sorry =/

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