diff options
Diffstat (limited to 'gcc/cse.c')
| -rw-r--r-- | gcc/cse.c | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/gcc/cse.c b/gcc/cse.c index d7638f051f3..ef5eb8cebef 100644 --- a/gcc/cse.c +++ b/gcc/cse.c @@ -281,7 +281,6 @@ struct qty_table_elem /* The table of all qtys, indexed by qty number. */ static struct qty_table_elem *qty_table; -#ifdef HAVE_cc0 /* For machines that have a CC0, we do not record its value in the hash table since its use is guaranteed to be the insn immediately following its definition and any other insn is presumed to invalidate it. @@ -293,7 +292,6 @@ static struct qty_table_elem *qty_table; static rtx this_insn_cc0, prev_insn_cc0; static machine_mode this_insn_cc0_mode, prev_insn_cc0_mode; -#endif /* Insn being scanned. */ @@ -884,9 +882,7 @@ new_basic_block (void) } } -#ifdef HAVE_cc0 prev_insn_cc0 = 0; -#endif } /* Say that register REG contains a quantity in mode MODE not in any @@ -3175,10 +3171,8 @@ fold_rtx (rtx x, rtx_insn *insn) case EXPR_LIST: return x; -#ifdef HAVE_cc0 case CC0: return prev_insn_cc0; -#endif case ASM_OPERANDS: if (insn) @@ -3232,7 +3226,6 @@ fold_rtx (rtx x, rtx_insn *insn) const_arg = folded_arg; break; -#ifdef HAVE_cc0 case CC0: /* The cc0-user and cc0-setter may be in different blocks if the cc0-setter potentially traps. In that case PREV_INSN_CC0 @@ -3256,7 +3249,6 @@ fold_rtx (rtx x, rtx_insn *insn) const_arg = equiv_constant (folded_arg); } break; -#endif default: folded_arg = fold_rtx (folded_arg, insn); @@ -4531,11 +4523,9 @@ cse_insn (rtx_insn *insn) sets = XALLOCAVEC (struct set, XVECLEN (x, 0)); this_insn = insn; -#ifdef HAVE_cc0 /* Records what this insn does to set CC0. */ this_insn_cc0 = 0; this_insn_cc0_mode = VOIDmode; -#endif /* Find all regs explicitly clobbered in this insn, to ensure they are not replaced with any other regs @@ -5550,7 +5540,6 @@ cse_insn (rtx_insn *insn) } } -#ifdef HAVE_cc0 /* If setting CC0, record what it was set to, or a constant, if it is equivalent to a constant. If it is being set to a floating-point value, make a COMPARE with the appropriate constant of 0. If we @@ -5565,7 +5554,6 @@ cse_insn (rtx_insn *insn) this_insn_cc0 = gen_rtx_COMPARE (VOIDmode, this_insn_cc0, CONST0_RTX (mode)); } -#endif } /* Now enter all non-volatile source expressions in the hash table @@ -6613,11 +6601,9 @@ cse_extended_basic_block (struct cse_basic_block_data *ebb_data) record_jump_equiv (insn, taken); } -#ifdef HAVE_cc0 /* Clear the CC0-tracking related insns, they can't provide useful information across basic block boundaries. */ prev_insn_cc0 = 0; -#endif } gcc_assert (next_qty <= max_qty); @@ -6868,21 +6854,17 @@ static bool set_live_p (rtx set, rtx_insn *insn ATTRIBUTE_UNUSED, /* Only used with HAVE_cc0. */ int *counts) { -#ifdef HAVE_cc0 rtx tem; -#endif if (set_noop_p (set)) ; -#ifdef HAVE_cc0 else if (GET_CODE (SET_DEST (set)) == CC0 && !side_effects_p (SET_SRC (set)) && ((tem = next_nonnote_nondebug_insn (insn)) == NULL_RTX || !INSN_P (tem) || !reg_referenced_p (cc0_rtx, PATTERN (tem)))) return false; -#endif else if (!is_dead_reg (SET_DEST (set), counts) || side_effects_p (SET_SRC (set))) return true; |