diff options
Diffstat (limited to 'gcc/config/i386')
| -rw-r--r-- | gcc/config/i386/i386.c | 41 | ||||
| -rw-r--r-- | gcc/config/i386/i386.h | 8 |
2 files changed, 25 insertions, 24 deletions
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index a4f4b6fb8ab..c800145fa3c 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -4295,6 +4295,7 @@ ix86_option_override_internal (bool main_args_p, #define PTA_PCOMMIT (HOST_WIDE_INT_1 << 56) #define PTA_MWAITX (HOST_WIDE_INT_1 << 57) #define PTA_CLZERO (HOST_WIDE_INT_1 << 58) +#define PTA_NO_80387 (HOST_WIDE_INT_1 << 59) #define PTA_CORE2 \ (PTA_64BIT | PTA_MMX | PTA_SSE | PTA_SSE2 | PTA_SSE3 | PTA_SSSE3 \ @@ -4339,7 +4340,7 @@ ix86_option_override_internal (bool main_args_p, {"i486", PROCESSOR_I486, CPU_NONE, 0}, {"i586", PROCESSOR_PENTIUM, CPU_PENTIUM, 0}, {"pentium", PROCESSOR_PENTIUM, CPU_PENTIUM, 0}, - {"lakemont", PROCESSOR_LAKEMONT, CPU_PENTIUM, 0}, + {"lakemont", PROCESSOR_LAKEMONT, CPU_PENTIUM, PTA_NO_80387}, {"pentium-mmx", PROCESSOR_PENTIUM, CPU_PENTIUM, PTA_MMX}, {"winchip-c6", PROCESSOR_I486, CPU_NONE, PTA_MMX}, {"winchip2", PROCESSOR_I486, CPU_NONE, PTA_MMX | PTA_3DNOW | PTA_PRFCHW}, @@ -4920,6 +4921,13 @@ ix86_option_override_internal (bool main_args_p, && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_MWAITX)) opts->x_ix86_isa_flags |= OPTION_MASK_ISA_MWAITX; + if (!(opts_set->x_target_flags & MASK_80387)) + { + if (processor_alias_table[i].flags & PTA_NO_80387) + opts->x_target_flags &= ~MASK_80387; + else + opts->x_target_flags |= MASK_80387; + } break; } @@ -4929,20 +4937,6 @@ ix86_option_override_internal (bool main_args_p, if (TARGET_X32 && (ix86_isa_flags & OPTION_MASK_ISA_MPX)) error ("Intel MPX does not support x32"); - if (TARGET_IAMCU_P (opts->x_target_flags)) - { - /* Verify that x87/MMX/SSE/AVX is off for -miamcu. */ - if (TARGET_80387_P (opts->x_target_flags)) - sorry ("X87 FPU isn%'t supported in Intel MCU psABI"); - else if ((opts->x_ix86_isa_flags & (OPTION_MASK_ISA_MMX - | OPTION_MASK_ISA_SSE - | OPTION_MASK_ISA_AVX))) - sorry ("%s isn%'t supported in Intel MCU psABI", - TARGET_MMX_P (opts->x_ix86_isa_flags) - ? "MMX" - : TARGET_SSE_P (opts->x_ix86_isa_flags) ? "SSE" : "AVX"); - } - if (!strcmp (opts->x_ix86_arch_string, "generic")) error ("generic CPU can be used only for %stune=%s %s", prefix, suffix, sw); @@ -5226,8 +5220,11 @@ ix86_option_override_internal (bool main_args_p, { if (!TARGET_SSE_P (opts->x_ix86_isa_flags)) { - warning (0, "SSE instruction set disabled, using 387 arithmetics"); - opts->x_ix86_fpmath = FPMATH_387; + if (TARGET_80387_P (opts->x_target_flags)) + { + warning (0, "SSE instruction set disabled, using 387 arithmetics"); + opts->x_ix86_fpmath = FPMATH_387; + } } else if ((opts->x_ix86_fpmath & FPMATH_387) && !TARGET_80387_P (opts->x_target_flags)) @@ -5253,10 +5250,6 @@ ix86_option_override_internal (bool main_args_p, else opts->x_ix86_fpmath = TARGET_FPMATH_DEFAULT_P (opts->x_ix86_isa_flags); - /* If the i387 is disabled, then do not return values in it. */ - if (!TARGET_80387_P (opts->x_target_flags)) - opts->x_target_flags &= ~MASK_FLOAT_RETURNS; - /* Use external vectorized library in vectorizing intrinsics. */ if (opts_set->x_ix86_veclibabi_type) switch (opts->x_ix86_veclibabi_type) @@ -6155,7 +6148,11 @@ ix86_valid_target_attribute_tree (tree args, else if (!TARGET_64BIT_P (opts->x_ix86_isa_flags) && TARGET_SSE_P (opts->x_ix86_isa_flags)) { - opts->x_ix86_fpmath = (enum fpmath_unit) (FPMATH_SSE | FPMATH_387); + if (TARGET_80387_P (opts->x_target_flags)) + opts->x_ix86_fpmath = (enum fpmath_unit) (FPMATH_SSE + | FPMATH_387); + else + opts->x_ix86_fpmath = (enum fpmath_unit) FPMATH_SSE; opts_set->x_ix86_fpmath = (enum fpmath_unit) 1; } diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h index 435312f0afc..be96c75df77 100644 --- a/gcc/config/i386/i386.h +++ b/gcc/config/i386/i386.h @@ -295,8 +295,12 @@ extern const struct processor_costs ix86_size_cost; (TARGET_64BIT_P(x) && TARGET_SSE_P(x) ? FPMATH_SSE : FPMATH_387) #endif -#define TARGET_FLOAT_RETURNS_IN_80387 TARGET_FLOAT_RETURNS -#define TARGET_FLOAT_RETURNS_IN_80387_P(x) TARGET_FLOAT_RETURNS_P(x) +/* If the i387 is disabled or -miamcu is used , then do not return + values in it. */ +#define TARGET_FLOAT_RETURNS_IN_80387 \ + (TARGET_FLOAT_RETURNS && TARGET_80387 && !TARGET_IAMCU) +#define TARGET_FLOAT_RETURNS_IN_80387_P(x) \ + (TARGET_FLOAT_RETURNS_P(x) && TARGET_80387_P(x) && !TARGET_IAMCU_P(x)) /* 64bit Sledgehammer mode. For libgcc2 we make sure this is a compile-time constant. */ |