diff options
Diffstat (limited to 'gcc-4.8/gcc/config/mips/mips.c')
| -rw-r--r-- | gcc-4.8/gcc/config/mips/mips.c | 22 |
1 files changed, 5 insertions, 17 deletions
diff --git a/gcc-4.8/gcc/config/mips/mips.c b/gcc-4.8/gcc/config/mips/mips.c index 252e82848..41c5d6b6b 100644 --- a/gcc-4.8/gcc/config/mips/mips.c +++ b/gcc-4.8/gcc/config/mips/mips.c @@ -3560,17 +3560,6 @@ mips_set_reg_reg_cost (enum machine_mode mode) } } -/* Return the cost of an operand X that can be trucated for free. - SPEED says whether we're optimizing for size or speed. */ - -static int -mips_truncated_op_cost (rtx x, bool speed) -{ - if (GET_CODE (x) == TRUNCATE) - x = XEXP (x, 0); - return set_src_cost (x, speed); -} - /* Implement TARGET_RTX_COSTS. */ static bool @@ -3951,13 +3940,12 @@ mips_rtx_costs (rtx x, int code, int outer_code, int opno ATTRIBUTE_UNUSED, case ZERO_EXTEND: if (outer_code == SET && ISA_HAS_BADDU + && (GET_CODE (XEXP (x, 0)) == TRUNCATE + || GET_CODE (XEXP (x, 0)) == SUBREG) && GET_MODE (XEXP (x, 0)) == QImode - && GET_CODE (XEXP (x, 0)) == PLUS) + && GET_CODE (XEXP (XEXP (x, 0), 0)) == PLUS) { - rtx plus = XEXP (x, 0); - *total = (COSTS_N_INSNS (1) - + mips_truncated_op_cost (XEXP (plus, 0), speed) - + mips_truncated_op_cost (XEXP (plus, 1), speed)); + *total = set_src_cost (XEXP (XEXP (x, 0), 0), speed); return true; } *total = mips_zero_extend_cost (mode, XEXP (x, 0)); @@ -8057,7 +8045,7 @@ mips_print_operand (FILE *file, rtx op, int letter) case 't': { int truth = (code == NE) == (letter == 'T'); - fputc ("zfnt"[truth * 2 + (GET_MODE (op) == CCmode)], file); + fputc ("zfnt"[truth * 2 + ST_REG_P (REGNO (XEXP (op, 0)))], file); } break; |