timevar_pop (TV_CPROP1);
}
- if (optimize_size)
- /* Do nothing. */ ;
- else
+ if (optimize_function_for_speed_p (cfun))
{
timevar_push (TV_PRE);
changed |= one_pre_gcse_pass (pass + 1);
for code size -- it rarely makes programs faster, and can make
them bigger if we did partial redundancy elimination (when optimizing
for space, we don't run the partial redundancy algorithms). */
- if (optimize_size)
+ if (optimize_function_for_size_p (cfun))
{
timevar_push (TV_HOIST);
max_gcse_regno = max_reg_num ();
/* We are finished with alias. */
end_alias_analysis ();
- if (!optimize_size && flag_gcse_sm)
+ if (optimize_function_for_speed_p (cfun) && flag_gcse_sm)
{
timevar_push (TV_LSM);
store_motion ();
static int
cprop_jump (basic_block bb, rtx setcc, rtx jump, rtx from, rtx src)
{
- rtx new, set_src, note_src;
+ rtx new_rtx, set_src, note_src;
rtx set = pc_set (jump);
rtx note = find_reg_equal_equiv_note (jump);
else
setcc = NULL_RTX;
- new = simplify_replace_rtx (set_src, from, src);
+ new_rtx = simplify_replace_rtx (set_src, from, src);
/* If no simplification can be made, then try the next register. */
- if (rtx_equal_p (new, SET_SRC (set)))
+ if (rtx_equal_p (new_rtx, SET_SRC (set)))
return 0;
/* If this is now a no-op delete it, otherwise this must be a valid insn. */
- if (new == pc_rtx)
+ if (new_rtx == pc_rtx)
delete_insn (jump);
else
{
/* Ensure the value computed inside the jump insn to be equivalent
to one computed by setcc. */
- if (setcc && modified_in_p (new, setcc))
+ if (setcc && modified_in_p (new_rtx, setcc))
return 0;
- if (! validate_unshare_change (jump, &SET_SRC (set), new, 0))
+ if (! validate_unshare_change (jump, &SET_SRC (set), new_rtx, 0))
{
/* When (some) constants are not valid in a comparison, and there
are two registers to be replaced by constants before the entire
we need to attach a note to the branch itself to make this
optimization work. */
- if (!rtx_equal_p (new, note_src))
- set_unique_reg_note (jump, REG_EQUAL, copy_rtx (new));
+ if (!rtx_equal_p (new_rtx, note_src))
+ set_unique_reg_note (jump, REG_EQUAL, copy_rtx (new_rtx));
return 0;
}
/* If a conditional jump has been changed into unconditional jump, remove
the jump and make the edge fallthru - this is always called in
cfglayout mode. */
- if (new != pc_rtx && simplejump_p (jump))
+ if (new_rtx != pc_rtx && simplejump_p (jump))
{
edge e;
edge_iterator ei;
{
basic_block bb, dest;
unsigned int count;
- rtx cond, new;
+ rtx cond, new_rtx;
count = 0;
FOR_EACH_BB (bb)
if (dest && single_pred_p (dest)
&& dest != EXIT_BLOCK_PTR)
{
- new = gen_rtx_SET (VOIDmode, XEXP (cond, 0),
+ new_rtx = gen_rtx_SET (VOIDmode, XEXP (cond, 0),
XEXP (cond, 1));
- implicit_sets[dest->index] = new;
+ implicit_sets[dest->index] = new_rtx;
if (dump_file)
{
fprintf(dump_file, "Implicit set of reg %d in ",
unsigned int regno = REGNO (reg_used->reg_rtx);
basic_block dest, old_dest;
struct expr *set;
- rtx src, new;
+ rtx src, new_rtx;
if (regno >= max_gcse_regno)
continue;
SET_DEST (PATTERN (setcc)),
SET_SRC (PATTERN (setcc)));
- new = simplify_replace_rtx (src, reg_used->reg_rtx,
+ new_rtx = simplify_replace_rtx (src, reg_used->reg_rtx,
SET_SRC (set->expr));
/* Jump bypassing may have already placed instructions on
has instructions associated with it, as these insns won't
get executed if the incoming edge is redirected. */
- if (new == pc_rtx)
+ if (new_rtx == pc_rtx)
{
edest = FALLTHRU_EDGE (bb);
dest = edest->insns.r ? NULL : edest->dest;
}
- else if (GET_CODE (new) == LABEL_REF)
+ else if (GET_CODE (new_rtx) == LABEL_REF)
{
- dest = BLOCK_FOR_INSN (XEXP (new, 0));
+ dest = BLOCK_FOR_INSN (XEXP (new_rtx, 0));
/* Don't bypass edges containing instructions. */
edest = find_edge (bb, dest);
if (edest && edest->insns.r)
static rtx
gcse_emit_move_after (rtx src, rtx dest, rtx insn)
{
- rtx new;
+ rtx new_rtx;
rtx set = single_set (insn), set2;
rtx note;
rtx eqv;
/* This should never fail since we're creating a reg->reg copy
we've verified to be valid. */
- new = emit_insn_after (gen_move_insn (dest, src), insn);
+ new_rtx = emit_insn_after (gen_move_insn (dest, src), insn);
/* Note the equivalence for local CSE pass. */
- set2 = single_set (new);
+ set2 = single_set (new_rtx);
if (!set2 || !rtx_equal_p (SET_DEST (set2), dest))
- return new;
+ return new_rtx;
if ((note = find_reg_equal_equiv_note (insn)))
eqv = XEXP (note, 0);
else
eqv = SET_SRC (set);
- set_unique_reg_note (new, REG_EQUAL, copy_insn_1 (eqv));
+ set_unique_reg_note (new_rtx, REG_EQUAL, copy_insn_1 (eqv));
- return new;
+ return new_rtx;
}
/* Delete redundant computations.
rtx pat = PATTERN (insn);
rtx src = SET_SRC (pat);
rtx reg = expr->reaching_reg;
- rtx copy, new;
+ rtx copy, new_rtx;
/* If we've already copied it, continue. */
if (expr->reaching_reg == src)
}
copy = gen_move_insn ( reg, copy_rtx (SET_SRC (pat)));
- new = emit_insn_before (copy, insn);
- record_one_set (REGNO (reg), new);
+ new_rtx = emit_insn_before (copy, insn);
+ record_one_set (REGNO (reg), new_rtx);
SET_SRC (pat) = reg;
df_insn_rescan (insn);
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