diff options
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index a39649d..30ec080 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -297,6 +297,7 @@ static rtx added_links_insn; /* Basic block in which we are performing combines. */ static basic_block this_basic_block; +static bool optimize_this_for_speed_p; /* Length of the currently allocated uid_insn_cost array. */ @@ -793,10 +794,10 @@ combine_validate_cost (rtx i1, rtx i2, rtx i3, rtx newpat, rtx newi2pat, } /* Calculate the replacement insn_rtx_costs. */ - new_i3_cost = insn_rtx_cost (newpat); + new_i3_cost = insn_rtx_cost (newpat, optimize_this_for_speed_p); if (newi2pat) { - new_i2_cost = insn_rtx_cost (newi2pat); + new_i2_cost = insn_rtx_cost (newi2pat, optimize_this_for_speed_p); new_cost = (new_i2_cost > 0 && new_i3_cost > 0) ? new_i2_cost + new_i3_cost : 0; } @@ -811,7 +812,7 @@ combine_validate_cost (rtx i1, rtx i2, rtx i3, rtx newpat, rtx newi2pat, int old_other_cost, new_other_cost; old_other_cost = INSN_COST (undobuf.other_insn); - new_other_cost = insn_rtx_cost (newotherpat); + new_other_cost = insn_rtx_cost (newotherpat, optimize_this_for_speed_p); if (old_other_cost > 0 && new_other_cost > 0) { old_cost += old_other_cost; @@ -1068,6 +1069,7 @@ combine_instructions (rtx f, unsigned int nregs) create_log_links (); FOR_EACH_BB (this_basic_block) { + optimize_this_for_speed_p = optimize_bb_for_speed_p (this_basic_block); last_call_luid = 0; mem_last_set = -1; label_tick++; @@ -1090,7 +1092,8 @@ combine_instructions (rtx f, unsigned int nregs) /* Record the current insn_rtx_cost of this instruction. */ if (NONJUMP_INSN_P (insn)) - INSN_COST (insn) = insn_rtx_cost (PATTERN (insn)); + INSN_COST (insn) = insn_rtx_cost (PATTERN (insn), + optimize_this_for_speed_p); if (dump_file) fprintf(dump_file, "insn_cost %d: %d\n", INSN_UID (insn), INSN_COST (insn)); @@ -6107,9 +6110,11 @@ expand_compound_operation (rtx x) rtx temp2 = expand_compound_operation (temp); /* Make sure this is a profitable operation. */ - if (rtx_cost (x, SET) > rtx_cost (temp2, SET)) + if (rtx_cost (x, SET, optimize_this_for_speed_p) + > rtx_cost (temp2, SET, optimize_this_for_speed_p)) return temp2; - else if (rtx_cost (x, SET) > rtx_cost (temp, SET)) + else if (rtx_cost (x, SET, optimize_this_for_speed_p) + > rtx_cost (temp, SET, optimize_this_for_speed_p)) return temp; else return x; @@ -6534,7 +6539,8 @@ make_extraction (enum machine_mode mode, rtx inner, HOST_WIDE_INT pos, /* Prefer ZERO_EXTENSION, since it gives more information to backends. */ - if (rtx_cost (temp, SET) <= rtx_cost (temp1, SET)) + if (rtx_cost (temp, SET, optimize_this_for_speed_p) + <= rtx_cost (temp1, SET, optimize_this_for_speed_p)) return temp; return temp1; } @@ -6728,7 +6734,8 @@ make_extraction (enum machine_mode mode, rtx inner, HOST_WIDE_INT pos, /* Prefer ZERO_EXTENSION, since it gives more information to backends. */ - if (rtx_cost (temp1, SET) < rtx_cost (temp, SET)) + if (rtx_cost (temp1, SET, optimize_this_for_speed_p) + < rtx_cost (temp, SET, optimize_this_for_speed_p)) temp = temp1; } pos_rtx = temp; @@ -7377,7 +7384,8 @@ force_to_mode (rtx x, enum machine_mode mode, unsigned HOST_WIDE_INT mask, y = simplify_gen_binary (AND, GET_MODE (x), XEXP (x, 0), GEN_INT (cval)); - if (rtx_cost (y, SET) < rtx_cost (x, SET)) + if (rtx_cost (y, SET, optimize_this_for_speed_p) + < rtx_cost (x, SET, optimize_this_for_speed_p)) x = y; } @@ -8521,7 +8529,8 @@ distribute_and_simplify_rtx (rtx x, int n) tmp = apply_distributive_law (simplify_gen_binary (inner_code, mode, new_op0, new_op1)); if (GET_CODE (tmp) != outer_code - && rtx_cost (tmp, SET) < rtx_cost (x, SET)) + && rtx_cost (tmp, SET, optimize_this_for_speed_p) + < rtx_cost (x, SET, optimize_this_for_speed_p)) return tmp; return NULL_RTX; |