[llvm-bugs] [Bug 24362] New: compiler fails with 'segmentation fault' after a nested return of lambda functions on Windows

[bugzilla-daemon at llvm.org]

https://llvm.org/bugs/show_bug.cgi?id=24362

            Bug ID: 24362
           Summary: compiler fails with 'segmentation fault' after a
                    nested return of lambda functions on Windows
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++11
          Assignee: unassignedclangbugs at nondot.org
          Reporter: andrey.kuleshov at intel.com
                CC: dgregor at apple.com, llvm-bugs at lists.llvm.org
    Classification: Unclassified

================ENVIRONMENT====================
OS: Windows 
clang: trunk

================REPRODUCER======================

auto&& x = []{return []{return 37;};}; //line#1
auto&& y = x();   //line#2

=================OUTPUT=========================
clang.EXE: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 3.8.0 (cfe/trunk 243859)
Target: x86_64-pc-windows-msvc
Thread model: posix
clang.EXE: 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.EXE: note: diagnostic msg:

=================EXTRA INFORMATION==================

In this case Clang fails with a segmentation fault after a nested return of
lamda-functions. Note, that it can be reproduced only on Windows, because on
Linux this code is correctly compiled. Line#1 is compiled correctly without a
call of function x() even on Windows. But after trying to initialize a new
variable with a return value of this lambda function, compiler fails with
segmentation fault.

--------------------
Intel Software Engineer
Andrey Kuleshov

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