diff options
Diffstat (limited to 'gcc/fwprop.c')
| -rw-r--r-- | gcc/fwprop.c | 26 |
1 files changed, 11 insertions, 15 deletions
diff --git a/gcc/fwprop.c b/gcc/fwprop.c index eb21d02..a0b9c8b 100644 --- a/gcc/fwprop.c +++ b/gcc/fwprop.c @@ -146,10 +146,9 @@ get_def_for_use (df_ref use) (DF_REF_PARTIAL | DF_REF_CONDITIONAL | DF_REF_MAY_CLOBBER) static void -process_defs (df_ref *def_rec, int top_flag) +process_defs (df_ref def, int top_flag) { - df_ref def; - while ((def = *def_rec++) != NULL) + for (; def; def = DF_REF_NEXT_LOC (def)) { df_ref curr_def = reg_defs[DF_REF_REGNO (def)]; unsigned int dregno; @@ -191,10 +190,9 @@ process_defs (df_ref *def_rec, int top_flag) is an artificial use vector. */ static void -process_uses (df_ref *use_rec, int top_flag) +process_uses (df_ref use, int top_flag) { - df_ref use; - while ((use = *use_rec++) != NULL) + for (; use; use = DF_REF_NEXT_LOC (use)) if ((DF_REF_FLAGS (use) & DF_REF_AT_TOP) == top_flag) { unsigned int uregno = DF_REF_REGNO (use); @@ -849,11 +847,10 @@ static sparseset active_defs_check; too, for checking purposes. */ static void -register_active_defs (df_ref *use_rec) +register_active_defs (df_ref use) { - while (*use_rec) + for (; use; use = DF_REF_NEXT_LOC (use)) { - df_ref use = *use_rec++; df_ref def = get_def_for_use (use); int regno = DF_REF_REGNO (use); @@ -887,11 +884,10 @@ update_df_init (rtx def_insn, rtx insn) in the ACTIVE_DEFS array to match pseudos to their def. */ static inline void -update_uses (df_ref *use_rec) +update_uses (df_ref use) { - while (*use_rec) + for (; use; use = DF_REF_NEXT_LOC (use)) { - df_ref use = *use_rec++; int regno = DF_REF_REGNO (use); /* Set up the use-def chain. */ @@ -1135,7 +1131,7 @@ forward_propagate_asm (df_ref use, rtx def_insn, rtx def_set, rtx reg) { rtx use_insn = DF_REF_INSN (use), src, use_pat, asm_operands, new_rtx, *loc; int speed_p, i; - df_ref *use_vec; + df_ref uses; gcc_assert ((DF_REF_FLAGS (use) & DF_REF_IN_NOTE) == 0); @@ -1144,8 +1140,8 @@ forward_propagate_asm (df_ref use, rtx def_insn, rtx def_set, rtx reg) /* In __asm don't replace if src might need more registers than reg, as that could increase register pressure on the __asm. */ - use_vec = DF_INSN_USES (def_insn); - if (use_vec[0] && use_vec[1]) + uses = DF_INSN_USES (def_insn); + if (uses && DF_REF_NEXT_LOC (uses)) return false; update_df_init (def_insn, use_insn); |