diff options
| author | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-04-22 10:42:21 +0000 |
|---|---|---|
| committer | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-04-22 10:42:21 +0000 |
| commit | f1565c91fb52479b661892f111a74d830df15233 (patch) | |
| tree | 9189a0396519f211744af9abcdd1e55ace0a2d12 /gcc/df.h | |
| parent | 60cc67651dd7b14ff931b856fe791193168844e0 (diff) | |
| download | gcc-f1565c91fb52479b661892f111a74d830df15233.tar.gz | |
* 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
Diffstat (limited to 'gcc/df.h')
| -rw-r--r-- | gcc/df.h | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -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); |