[Bug rtl-optimization/92510] [10 Regression] ICE in native_encode_rtx, at simplify-rtx.c:6272

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92510
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Nov 27 16:32:54 2019
New Revision: 278777

URL: https://gcc.gnu.org/viewcvs?rev=278777&root=gcc&view=rev
Log:
        PR rtl-optimization/92510
        * combine.c (gen_lowpart_for_combine): Only transform lowpart subreg
        of comparison into a comparison with different mode if both imode and
        omode are scalar integral modes.

        * gcc.dg/pr92510.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr92510.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/combine.c
    trunk/gcc/testsuite/ChangeLog