[Bug target/78614] [7 Regression] ICE error: invalid rtl sharing found in the insn (verify_rtx_sharing) gcc/emit-rtl.c:2743

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78614

--- Comment #21 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Dec  1 07:56:49 2016
New Revision: 243099

URL: https://gcc.gnu.org/viewcvs?rev=243099&root=gcc&view=rev
Log:
        PR target/78614
        * config/rs6000/rs6000.c (rs6000_frame_related): Call
        set_used_flags (pat) before any simplifications.  Clear used flag on
        PARALLEL copy.  Don't guard add_reg_note call.  Call
        copy_rtx_if_shared on pat before storing it into
        REG_FRAME_RELATED_EXPR.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/rs6000/rs6000.c