[Bug rtl-optimization/81424] [7/8 regression] internal error on GPRbuild with -O2

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81424

--- Comment #6 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
Author: ebotcazou
Date: Sun Jul 16 22:03:54 2017
New Revision: 250246

URL: https://gcc.gnu.org/viewcvs?rev=250246&root=gcc&view=rev
Log:
        PR rtl-optimization/81424
        * optabs.c (prepare_cmp_insn): Use copy_to_reg instead of force_reg
        to remove potential trapping from operands if -fnon-call-exceptions.

Added:
    trunk/gcc/testsuite/gnat.dg/opt65.adb
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/optabs.c
    trunk/gcc/testsuite/ChangeLog