diff options
Diffstat (limited to 'gcc/config/i386/i386.h')
| -rw-r--r-- | gcc/config/i386/i386.h | 34 |
1 files changed, 28 insertions, 6 deletions
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h index 0bf603a..75b72d8 100644 --- a/gcc/config/i386/i386.h +++ b/gcc/config/i386/i386.h @@ -58,6 +58,8 @@ struct processor_costs { const int mult_init; /* cost of starting a multiply */ const int mult_bit; /* cost of multiply per each bit set */ const int divide; /* cost of a divide/mod */ + int movsx; /* The cost of movsx operation. */ + int movzx; /* The cost of movzx operation. */ const int large_insn; /* insns larger than this cost more */ const int move_ratio; /* The threshold of number of scalar memory-to-memory move insns. */ @@ -953,7 +955,8 @@ extern int ix86_arch; ((mode) == QImode || (mode) == HImode || (mode) == SImode \ || (mode) == DImode \ || (mode) == CQImode || (mode) == CHImode || (mode) == CSImode \ - || (mode) == CDImode) + || (mode) == CDImode \ + || (TARGET_64BIT && ((mode) == TImode || (mode) == CTImode))) /* Value is 1 if hard register REGNO can hold a value of machine-mode MODE. */ @@ -2427,6 +2430,10 @@ while (0) case CONST: \ case LABEL_REF: \ case SYMBOL_REF: \ + if (TARGET_64BIT && !x86_64_sign_extended_value (RTX)) \ + return 3; \ + if (TARGET_64BIT && !x86_64_zero_extended_value (RTX)) \ + return 2; \ return flag_pic && SYMBOLIC_CONST (RTX) ? 1 : 0; \ \ case CONST_DOUBLE: \ @@ -2456,9 +2463,24 @@ while (0) assumptions are adequate for the target machine. */ #define RTX_COSTS(X,CODE,OUTER_CODE) \ + case ZERO_EXTEND: \ + /* The zero extensions is often completely free on x86_64, so make \ + it as cheap as possible. */ \ + if (TARGET_64BIT && GET_MODE (X) == DImode \ + && GET_MODE (XEXP (X, 0)) == SImode) \ + { \ + total = 1; goto egress_rtx_costs; \ + } \ + else \ + TOPLEVEL_COSTS_N_INSNS (TARGET_ZERO_EXTEND_WITH_AND ? \ + ix86_cost->add : ix86_cost->movzx); \ + break; \ + case SIGN_EXTEND: \ + TOPLEVEL_COSTS_N_INSNS (ix86_cost->movsx); \ + break; \ case ASHIFT: \ if (GET_CODE (XEXP (X, 1)) == CONST_INT \ - && GET_MODE (XEXP (X, 0)) == SImode) \ + && (GET_MODE (XEXP (X, 0)) != DImode || TARGET_64BIT)) \ { \ HOST_WIDE_INT value = INTVAL (XEXP (X, 1)); \ if (value == 1) \ @@ -2472,7 +2494,7 @@ while (0) case ASHIFTRT: \ case LSHIFTRT: \ case ROTATERT: \ - if (GET_MODE (XEXP (X, 0)) == DImode) \ + if (!TARGET_64BIT && GET_MODE (XEXP (X, 0)) == DImode) \ { \ if (GET_CODE (XEXP (X, 1)) == CONST_INT) \ { \ @@ -2562,7 +2584,7 @@ while (0) case IOR: \ case XOR: \ case MINUS: \ - if (GET_MODE (X) == DImode) \ + if (!TARGET_64BIT && GET_MODE (X) == DImode) \ return (COSTS_N_INSNS (ix86_cost->add) * 2 \ + (rtx_cost (XEXP (X, 0), OUTER_CODE) \ << (GET_MODE (XEXP (X, 0)) != DImode)) \ @@ -2572,7 +2594,7 @@ while (0) /* fall through */ \ case NEG: \ case NOT: \ - if (GET_MODE (X) == DImode) \ + if (!TARGET_64BIT && GET_MODE (X) == DImode) \ TOPLEVEL_COSTS_N_INSNS (ix86_cost->add * 2); \ TOPLEVEL_COSTS_N_INSNS (ix86_cost->add); \ \ @@ -2961,7 +2983,7 @@ do { long l; \ */ #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ - fprintf (FILE, "%s%s%d\n", ASM_LONG, LPREFIX, VALUE) + fprintf (FILE, "%s%s%d\n", TARGET_64BIT ? ASM_QUAD : ASM_LONG, LPREFIX, VALUE) /* This is how to output an element of a case-vector that is relative. We don't use these on the 386 yet, because the ATT assembler can't do |