https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78540
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Author: jakub Date: Mon Nov 28 22:51:29 2016 New Revision: 242937 URL: https://gcc.gnu.org/viewcvs?rev=242937&root=gcc&view=rev Log: PR middle-end/78540 * rtl.h (remove_reg_equal_equiv_notes): Return bool instead of void. * rtlanal.c (remove_reg_equal_equiv_notes): Return true if any note has been removed. * postreload.c (reload_combine_recognize_pattern): If remove_reg_equal_equiv_notes returns true, call df_notes_rescan. * gcc.dg/pr78540.c: New test. Added: trunk/gcc/testsuite/gcc.dg/pr78540.c Modified: trunk/gcc/ChangeLog trunk/gcc/postreload.c trunk/gcc/rtl.h trunk/gcc/rtlanal.c trunk/gcc/testsuite/ChangeLog