[Bug tree-optimization/63898] New: [5 Regression] r217560 caused segfault building 462.libquantum from cpu2006

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63898

            Bug ID: 63898
           Summary: [5 Regression] r217560 caused segfault building
                    462.libquantum from cpu2006
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
                CC: rguenther at suse dot de

On Linux/x86-64, r217560 caused:

gcc -c -o measure.o -DSPEC_CPU -DNDEBUG   -O2 -ffast-math -fwhole-program
-flto=jobserver -fuse-linker-plugin       -DSPEC_CPU_LP64  -DSPEC_CPU_LINUX    
  measure.c
gcc: internal compiler error: Segmentation fault (program cc1)
0x40c2ec execute
    ../../src-trunk/gcc/gcc.c:2912
0x40c5d9 do_spec_1
    ../../src-trunk/gcc/gcc.c:4837
0x40f07b process_brace_body
    ../../src-trunk/gcc/gcc.c:6120
0x40f07b handle_braces
    ../../src-trunk/gcc/gcc.c:6034
0x40d167 do_spec_1
    ../../src-trunk/gcc/gcc.c:5491
0x40f07b process_brace_body
    ../../src-trunk/gcc/gcc.c:6120
0x40f07b handle_braces
    ../../src-trunk/gcc/gcc.c:6034
0x40d167 do_spec_1
    ../../src-trunk/gcc/gcc.c:5491
0x40ca63 do_spec_1
    ../../src-trunk/gcc/gcc.c:5606
0x40f07b process_brace_body
    ../../src-trunk/gcc/gcc.c:6120
0x40f07b handle_braces
    ../../src-trunk/gcc/gcc.c:6034
0x40d167 do_spec_1
    ../../src-trunk/gcc/gcc.c:5491
0x40f07b process_brace_body
    ../../src-trunk/gcc/gcc.c:6120
0x40f07b handle_braces
    ../../src-trunk/gcc/gcc.c:6034
0x40d167 do_spec_1
    ../../src-trunk/gcc/gcc.c:5491
0x40f07b process_brace_body
    ../../src-trunk/gcc/gcc.c:6120
0x40f07b handle_braces
    ../../src-trunk/gcc/gcc.c:6034
0x40d167 do_spec_1
    ../../src-trunk/gcc/gcc.c:5491
0x40f07b process_brace_body
    ../../src-trunk/gcc/gcc.c:6120
0x40f07b handle_braces
    ../../src-trunk/gcc/gcc.c:6034
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.
specmake[3]: *** [measure.o] Error 4