https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78526
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Author: jakub Date: Fri Nov 25 18:56:50 2016 New Revision: 242882 URL: https://gcc.gnu.org/viewcvs?rev=242882&root=gcc&view=rev Log: PR rtl-optimization/78526 * simplify-rtx.c (simplify_immed_subreg): Don't use wi::extract_uhwi beyond val's precision. * gcc.dg/pr78526.c: New test. Added: trunk/gcc/testsuite/gcc.dg/pr78526.c Modified: trunk/gcc/ChangeLog trunk/gcc/simplify-rtx.c trunk/gcc/testsuite/ChangeLog