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From: "zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/64295] New: [5 Regression] ICE: SIGSEGV (infinite recursion) with -frounding-math -funsafe-math-optimizations
Date: Sat, 13 Dec 2014 09:44:00 -0000
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X-Bugzilla-Component: tree-optimization
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64295

            Bug ID: 64295
           Summary: [5 Regression] ICE: SIGSEGV (infinite recursion) with
                    -frounding-math -funsafe-math-optimizations
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz

Created attachment 34273
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34273&action=edit
reduced testcase

Compiler output:
$ gcc -O -frounding-math -funsafe-math-optimizations testcase.c
gcc: internal compiler error: Segmentation fault (program cc1)
0x40c085 execute
        /mnt/svn/gcc-trunk/gcc/gcc.c:2912
0x40c319 do_spec_1
        /mnt/svn/gcc-trunk/gcc/gcc.c:4845
0x40e917 process_brace_body
        /mnt/svn/gcc-trunk/gcc/gcc.c:6128
0x40e917 handle_braces
        /mnt/svn/gcc-trunk/gcc/gcc.c:6042
0x40d317 do_spec_1
        /mnt/svn/gcc-trunk/gcc/gcc.c:5499
0x40e917 process_brace_body
        /mnt/svn/gcc-trunk/gcc/gcc.c:6128
0x40e917 handle_braces
        /mnt/svn/gcc-trunk/gcc/gcc.c:6042
0x40d317 do_spec_1
        /mnt/svn/gcc-trunk/gcc/gcc.c:5499
0x40c6a3 do_spec_1
        /mnt/svn/gcc-trunk/gcc/gcc.c:5614
0x40e917 process_brace_body
        /mnt/svn/gcc-trunk/gcc/gcc.c:6128
0x40e917 handle_braces
        /mnt/svn/gcc-trunk/gcc/gcc.c:6042
0x40d317 do_spec_1
        /mnt/svn/gcc-trunk/gcc/gcc.c:5499
0x40e917 process_brace_body
        /mnt/svn/gcc-trunk/gcc/gcc.c:6128
0x40e917 handle_braces
        /mnt/svn/gcc-trunk/gcc/gcc.c:6042
0x40d317 do_spec_1
        /mnt/svn/gcc-trunk/gcc/gcc.c:5499
0x40e917 process_brace_body
        /mnt/svn/gcc-trunk/gcc/gcc.c:6128
0x40e917 handle_braces
        /mnt/svn/gcc-trunk/gcc/gcc.c:6042
0x40d317 do_spec_1
        /mnt/svn/gcc-trunk/gcc/gcc.c:5499
0x40e917 process_brace_body
        /mnt/svn/gcc-trunk/gcc/gcc.c:6128
0x40e917 handle_braces
        /mnt/svn/gcc-trunk/gcc/gcc.c:6042
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revisions:
r218658 - ICE
4_9 r218177 - OK