[Bug rtl-optimization/70174] [6 Regression] ICE at -O1 and above on x86_64-linux-gnu in gen_lowpart_general, at rtlhooks.c:63

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70174

--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Mar 11 12:07:01 2016
New Revision: 234137

URL: https://gcc.gnu.org/viewcvs?rev=234137&root=gcc&view=rev
Log:
        PR rtl-optimization/70174
        * expmed.c (store_bit_field_using_insv): Use gen_lowpart_if_possible
        followed by gen_lowpart on force_reg instead of just gen_lowpart.

        * gcc.dg/pr70174.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr70174.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/expmed.c
    trunk/gcc/testsuite/ChangeLog