[Bug middle-end/90095] [9 Regression] wrong code with -Os -fno-tree-bit-ccp

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90095
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Apr 17 13:28:39 2019
New Revision: 270410

URL: https://gcc.gnu.org/viewcvs?rev=270410&root=gcc&view=rev
Log:
        PR middle-end/90095
        * internal-fn.c (expand_mul_overflow): Don't set SUBREG_PROMOTED_VAR_P
        on lowpart SUBREGs.

        * gcc.dg/pr90095-1.c: New test.
        * gcc.dg/pr90095-2.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr90095-1.c
    trunk/gcc/testsuite/gcc.dg/pr90095-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/internal-fn.c
    trunk/gcc/testsuite/ChangeLog