[Bug target/88343] [7/8 Regression] R31 is unconditionally saved/restored on powerpc-darwin even when it's not necessary.

[amodra at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88343

--- Comment #35 from Alan Modra <amodra at gcc dot gnu.org> ---
Author: amodra
Date: Sat Feb  9 12:44:02 2019
New Revision: 268722

URL: https://gcc.gnu.org/viewcvs?rev=268722&root=gcc&view=rev
Log:
[RS6000] Correct save_reg_p

        PR target/88343
        * config/rs6000/rs6000.c (rs6000_reg_live_or_pic_offset_p): Match
        logic in rs6000_emit_prologue emitting pic_offset_table setup.


Modified:
    branches/gcc-7-branch/gcc/ChangeLog
    branches/gcc-7-branch/gcc/config/rs6000/rs6000.c