diff options
Diffstat (limited to 'gcc/postreload.c')
| -rw-r--r-- | gcc/postreload.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/gcc/postreload.c b/gcc/postreload.c index 7659bab435a..8abc90f83d9 100644 --- a/gcc/postreload.c +++ b/gcc/postreload.c @@ -233,6 +233,7 @@ reload_cse_simplify_set (rtx set, rtx insn) #ifdef LOAD_EXTEND_OP enum rtx_code extend_op = UNKNOWN; #endif + bool speed = optimize_bb_for_speed_p (BLOCK_FOR_INSN (insn)); dreg = true_regnum (SET_DEST (set)); if (dreg < 0) @@ -267,7 +268,7 @@ reload_cse_simplify_set (rtx set, rtx insn) old_cost = REGISTER_MOVE_COST (GET_MODE (src), REGNO_REG_CLASS (REGNO (src)), dclass); else - old_cost = rtx_cost (src, SET); + old_cost = rtx_cost (src, SET, speed); for (l = val->locs; l; l = l->next) { @@ -302,7 +303,7 @@ reload_cse_simplify_set (rtx set, rtx insn) this_rtx = GEN_INT (this_val); } #endif - this_cost = rtx_cost (this_rtx, SET); + this_cost = rtx_cost (this_rtx, SET, speed); } else if (REG_P (this_rtx)) { @@ -310,7 +311,7 @@ reload_cse_simplify_set (rtx set, rtx insn) if (extend_op != UNKNOWN) { this_rtx = gen_rtx_fmt_e (extend_op, word_mode, this_rtx); - this_cost = rtx_cost (this_rtx, SET); + this_cost = rtx_cost (this_rtx, SET, speed); } else #endif @@ -570,8 +571,10 @@ reload_cse_simplify_operands (rtx insn, rtx testreg) if (op_alt_regno[i][j] == -1 && reg_fits_class_p (testreg, rclass, 0, mode) && (GET_CODE (recog_data.operand[i]) != CONST_INT - || (rtx_cost (recog_data.operand[i], SET) - > rtx_cost (testreg, SET)))) + || (rtx_cost (recog_data.operand[i], SET, + optimize_bb_for_speed_p (BLOCK_FOR_INSN (insn))) + > rtx_cost (testreg, SET, + optimize_bb_for_speed_p (BLOCK_FOR_INSN (insn)))))) { alternative_nregs[j]++; op_alt_regno[i][j] = regno; @@ -1240,6 +1243,8 @@ reload_cse_move2add (rtx first) { rtx new_src = gen_int_mode (INTVAL (src) - reg_offset[regno], GET_MODE (reg)); + bool speed = optimize_bb_for_speed_p (BLOCK_FOR_INSN (insn)); + /* (set (reg) (plus (reg) (const_int 0))) is not canonical; use (set (reg) (reg)) instead. We don't delete this insn, nor do we convert it into a @@ -1255,7 +1260,7 @@ reload_cse_move2add (rtx first) if (INTVAL (src) == reg_offset [regno]) validate_change (insn, &SET_SRC (pat), reg, 0); } - else if (rtx_cost (new_src, PLUS) < rtx_cost (src, SET) + else if (rtx_cost (new_src, PLUS, speed) < rtx_cost (src, SET, speed) && have_add2_insn (reg, new_src)) { rtx tem = gen_rtx_PLUS (GET_MODE (reg), reg, new_src); @@ -1331,14 +1336,15 @@ reload_cse_move2add (rtx first) + base_offset - regno_offset, GET_MODE (reg)); - int success = 0; + bool success = false; + bool speed = optimize_bb_for_speed_p (BLOCK_FOR_INSN (insn)); if (new_src == const0_rtx) /* See above why we create (set (reg) (reg)) here. */ success = validate_change (next, &SET_SRC (set), reg, 0); - else if ((rtx_cost (new_src, PLUS) - < COSTS_N_INSNS (1) + rtx_cost (src3, SET)) + else if ((rtx_cost (new_src, PLUS, speed) + < COSTS_N_INSNS (1) + rtx_cost (src3, SET, speed)) && have_add2_insn (reg, new_src)) { rtx newpat = gen_rtx_SET (VOIDmode, |