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
+2010-04-22 Bernd Schmidt <bernds@codesourcery.com>
+
+ * 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.
+
2010-04-22 Uros Bizjak <ubizjak@gmail.com>
* config/i386/i386.md: Use {} around multi-line preparation statements.
2010-04-22 Uros Bizjak <ubizjak@gmail.com>
* config/i386/i386.md: Use {} around multi-line preparation statements.
- df_simulate_find_defs (insn, test_set);
+ df_simulate_find_noclobber_defs (insn, test_set);
df_simulate_one_insn_backwards (test_bb, insn, test_live);
}
prev = PREV_INSN (insn);
df_simulate_one_insn_backwards (test_bb, insn, test_live);
}
prev = PREV_INSN (insn);