[LLVMbugs] [Bug 20046] New: Segfault when using a variable template initialized by a lambda inside a lambda

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=20046

            Bug ID: 20046
           Summary: Segfault when using a variable template initialized by
                    a lambda inside a lambda
           Product: clang
           Version: trunk
          Hardware: Macintosh
                OS: MacOS X
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++1y
          Assignee: unassignedclangbugs at nondot.org
          Reporter: ldionne.2 at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 12661
  --> http://llvm.org/bugs/attachment.cgi?id=12661&action=edit
Test cases with comments

Hi,

The following code causes a segmentation fault on Clang r210972:
------------------------------------------------------------------------------
template <typename ...Anything>
auto variable_template = [] { return 1; }();

int main() {
    auto f = [](auto) { return variable_template<>; };
    f(1);
}
------------------------------------------------------------------------------

The error message is (no stack trace; see the attached test cases):
------------------------------------------------------------------------------
clang-3.5: error: unable to execute command: Segmentation fault: 11
clang-3.5: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 3.5.0
Target: x86_64-apple-darwin13.2.0
Thread model: posix
clang-3.5: note: diagnostic msg: PLEASE submit a bug report to
http://llvm.org/bugs/ and include the crash backtrace, preprocessed source, and
associated run script.
clang-3.5: note: diagnostic msg:
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-3.5: note: diagnostic msg:
/var/folders/1t/g6fmf1h52nq1b6k9gnv600xc0000gn/T/worksheet-07b61d.cpp
clang-3.5: note: diagnostic msg:
/var/folders/1t/g6fmf1h52nq1b6k9gnv600xc0000gn/T/worksheet-07b61d.sh
clang-3.5: note: diagnostic msg:

********************
------------------------------------------------------------------------------

The exact command line is:
~/code/llvm/build/bin/clang++ -std=c++1y -o /dev/null
~/desktop/bugreport/worksheet.cpp

I also attached a couple of test cases with comments.


Regards,
Louis Dionne

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20140615/09b3ec02/attachment.html>