------- Comment #5 from bernds at gcc dot gnu dot org 2010-08-19 17:32 ------- Subject: Bug 42172
Author: bernds Date: Thu Aug 19 17:31:57 2010 New Revision: 163383 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=163383 Log: PR target/42172 * combine.c (combine_validate_cost): New arg I0. All callers changed. Take its cost into account if nonnull. (insn_a_feeds_b): New static function. (combine_instructions): Look for four-insn combinations. (can_combine_p): New args PRED2, SUCC2. All callers changed. Take them into account when computing all_adjacent and looking for other uses. (combinable_i3pat): New args I0DEST, I0_NOT_IN_SRC. All callers changed. Treat them like I1DEST and I1_NOT_IN_SRC. (try_combine): New arg I0. Handle four-insn combinations. (distribute_notes): New arg ELIM_I0. All callers changed. Treat it like ELIM_I1. Modified: trunk/gcc/ChangeLog trunk/gcc/combine.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42172
