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From: "t.poechtrager at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/61564] New: #pragma GCC optimize ("-fno-lto") causes the compiler to crash
Date: Thu, 19 Jun 2014 16:39:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61564

            Bug ID: 61564
           Summary: #pragma GCC optimize ("-fno-lto") causes the compiler
                    to crash
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: t.poechtrager at gmail dot com
            Target: Linux x86_64, i686-w64-mingw32 and others

$ cat test.cpp
#pragma GCC push_options
#pragma GCC optimize ("-fno-lto")
int main(void){return 0;}
#pragma GCC pop_options

### GCC 4.9.0 ###
$ LC_ALL=C gcc test.cpp -flto 
test.cpp:4:24: internal compiler error: Segmentation fault
 #pragma GCC pop_options
                        ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.9/README.Bugs> for instructions.
Preprocessed source stored into /tmp/ccpuDCNO.out file, please attach this to
your bugreport.

### GCC 4.6.4 ###
$ LC_ALL=C gcc-4.6 test.cpp -flto # no crash