[Bug c/71594] New: ice in maybe_legitimize_operand, at optabs.c:6893

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71594

            Bug ID: 71594
           Summary: ice in maybe_legitimize_operand, at optabs.c:6893
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

Created attachment 38735
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38735&action=edit
C source code

The attached code, when compiled with flags -c -O3 -march=native on x86_64 by
gcc trunk dated 20160619, does this:

bug295.c: In function ‘func_0’:
bug295.c:9100:1: internal compiler error: in maybe_legitimize_operand, at
optabs.c:6893
 }
 ^
0xb2ab3b maybe_legitimize_operand
        ../../src/trunk/gcc/optabs.c:6892
0xb3442c maybe_legitimize_operands(insn_code, unsigned int, unsigned int,
expand_operand*)
        ../../src/trunk/gcc/optabs.c:6959
0xb3442c maybe_gen_insn(insn_code, unsigned int, expand_operand*)
        ../../src/trunk/gcc/optabs.c:6977
0xb3442c maybe_expand_insn(insn_code, unsigned int, expand_operand*)
        ../../src/trunk/gcc/optabs.c:7020