From f1565c91fb52479b661892f111a74d830df15233 Mon Sep 17 00:00:00 2001 From: bernds Date: Thu, 22 Apr 2010 10:42:21 +0000 Subject: * ifcvt.c (dead_or_predicable): Use df_simulate_find_defs and df_simulate_find_noclobber_defs as appropriate. Keep track of an extra set merge_set_noclobber, and use it to relax the final test slightly. * df.h (df_simulate_find_noclobber_defs): Declare. * df-problems.c (df_simulate_find_defs): Don't ignore partial or conditional defs. (df_simulate_find_noclobber_defs): New function. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@158639 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/df.h | 1 + 1 file changed, 1 insertion(+) (limited to 'gcc/df.h') diff --git a/gcc/df.h b/gcc/df.h index 194cbcf2639..c73f00fe6ce 100644 --- a/gcc/df.h +++ b/gcc/df.h @@ -978,6 +978,7 @@ extern void df_note_add_problem (void); extern void df_md_add_problem (void); extern void df_md_simulate_artificial_defs_at_top (basic_block, bitmap); extern void df_md_simulate_one_insn (basic_block, rtx, bitmap); +extern void df_simulate_find_noclobber_defs (rtx, bitmap); extern void df_simulate_find_defs (rtx, bitmap); extern void df_simulate_defs (rtx, bitmap); extern void df_simulate_uses (rtx, bitmap); -- cgit v1.2.1