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| author | Bernd Schmidt <bernds@codesourcery.com> | 2010-04-22 10:42:21 +0000 |
|---|---|---|
| committer | Bernd Schmidt <bernds@gcc.gnu.org> | 2010-04-22 10:42:21 +0000 |
| commit | 907deb1a1e215a24985eb6b5db529feceb782d46 (patch) | |
| tree | 9189a0396519f211744af9abcdd1e55ace0a2d12 /gcc/df.h | |
| parent | ed27799786f55ec8aed9f6dcb19852f924cc038e (diff) | |
| download | gcc-907deb1a1e215a24985eb6b5db529feceb782d46.zip gcc-907deb1a1e215a24985eb6b5db529feceb782d46.tar.gz gcc-907deb1a1e215a24985eb6b5db529feceb782d46.tar.bz2 | |
ifcvt.c (dead_or_predicable): Use df_simulate_find_defs and df_simulate_find_noclobber_defs as appropriate.
* 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.
From-SVN: r158639
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); |