http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56178
--- Comment #6 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2013-02-07 08:07:19 UTC --- Author: ebotcazou Date: Thu Feb 7 08:07:04 2013 New Revision: 195841 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195841 Log: PR rtl-optimization/56178 * cse.c (cse_insn): Do not create a REG_EQUAL note if the source is a SUBREG of a register. Tidy up related block of code. * fwprop.c (forward_propagate_and_simplify): Do not create a REG_EQUAL note if the source is a register or a SUBREG of a register. Modified: trunk/gcc/ChangeLog trunk/gcc/cse.c trunk/gcc/fwprop.c