* @file
* @brief ia32 architecture variants
* @author Michael Beck, Matthias Braun
- * @version $Id: bearch_ia32_t.h 16363 2007-10-25 23:27:07Z beck $
*/
#include "config.h"
arch_all_amd = arch_k6 | arch_geode | arch_athlon_plus,
arch_feature_mmx = 0x00004000, /**< MMX instructions */
- arch_feature_p6_insn = 0x00008000, /**< PentiumPro instructions */
- arch_feature_sse1 = 0x00010000, /**< SSE1 instructions */
- arch_feature_sse2 = 0x00020000, /**< SSE2 instructions */
- arch_feature_sse3 = 0x00040000, /**< SSE3 instructions */
- arch_feature_ssse3 = 0x00080000, /**< SSSE3 instructions */
- arch_feature_3DNow = 0x00100000, /**< 3DNow! instructions */
- arch_feature_3DNowE = 0x00200000, /**< Enhanced 3DNow! instructions */
- arch_feature_64bit = 0x00400000, /**< x86_64 support */
- arch_feature_sse4_1 = 0x00800000, /**< SSE4.1 instructions */
- arch_feature_sse4_2 = 0x01000000, /**< SSE4.2 instructions */
- arch_feature_sse4a = 0x02000000, /**< SSE4a instructions */
+ arch_feature_cmov = 0x00008000, /**< cmov instructions */
+ arch_feature_p6_insn = 0x00010000, /**< PentiumPro instructions */
+ arch_feature_sse1 = 0x00020000, /**< SSE1 instructions */
+ arch_feature_sse2 = 0x00040000, /**< SSE2 instructions */
+ arch_feature_sse3 = 0x00080000, /**< SSE3 instructions */
+ arch_feature_ssse3 = 0x00100000, /**< SSSE3 instructions */
+ arch_feature_3DNow = 0x00200000, /**< 3DNow! instructions */
+ arch_feature_3DNowE = 0x00400000, /**< Enhanced 3DNow! instructions */
+ arch_feature_64bit = 0x00800000, /**< x86_64 support */
+ arch_feature_sse4_1 = 0x01000000, /**< SSE4.1 instructions */
+ arch_feature_sse4_2 = 0x02000000, /**< SSE4.2 instructions */
+ arch_feature_sse4a = 0x04000000, /**< SSE4a instructions */
+ arch_feature_popcnt = 0x08000000, /**< popcnt instruction */
arch_mmx_insn = arch_feature_mmx, /**< MMX instructions */
arch_sse1_insn = arch_feature_sse1 | arch_mmx_insn, /**< SSE1 instructions, include MMX */
cpu_i486 = arch_i486,
cpu_pentium = arch_pentium,
cpu_pentium_mmx = arch_pentium | arch_mmx_insn,
- cpu_pentium_pro = arch_ppro | arch_feature_p6_insn,
- cpu_pentium_2 = arch_ppro | arch_feature_p6_insn | arch_mmx_insn,
- cpu_pentium_3 = arch_ppro | arch_feature_p6_insn | arch_sse1_insn,
- cpu_pentium_m = arch_ppro | arch_feature_p6_insn | arch_sse2_insn,
- cpu_pentium_4 = arch_netburst | arch_feature_p6_insn | arch_sse2_insn,
- cpu_prescott = arch_nocona | arch_feature_p6_insn | arch_sse3_insn,
- cpu_nocona = arch_nocona | arch_feature_p6_insn | arch_64bit_insn | arch_sse3_insn,
- cpu_core2 = arch_core2 | arch_feature_p6_insn | arch_64bit_insn | arch_ssse3_insn,
- cpu_penryn = arch_core2 | arch_feature_p6_insn | arch_64bit_insn | arch_sse4_1_insn,
+ cpu_pentium_pro = arch_ppro | arch_feature_cmov | arch_feature_p6_insn,
+ cpu_pentium_2 = arch_ppro | arch_feature_cmov | arch_feature_p6_insn | arch_mmx_insn,
+ cpu_pentium_3 = arch_ppro | arch_feature_cmov | arch_feature_p6_insn | arch_sse1_insn,
+ cpu_pentium_m = arch_ppro | arch_feature_cmov | arch_feature_p6_insn | arch_sse2_insn,
+ cpu_pentium_4 = arch_netburst | arch_feature_cmov | arch_feature_p6_insn | arch_sse2_insn,
+ cpu_prescott = arch_nocona | arch_feature_cmov | arch_feature_p6_insn | arch_sse3_insn,
+ cpu_nocona = arch_nocona | arch_feature_cmov | arch_feature_p6_insn | arch_64bit_insn | arch_sse3_insn,
+ cpu_core2 = arch_core2 | arch_feature_cmov | arch_feature_p6_insn | arch_64bit_insn | arch_ssse3_insn,
+ cpu_penryn = arch_core2 | arch_feature_cmov | arch_feature_p6_insn | arch_64bit_insn | arch_sse4_1_insn,
/* AMD CPUs */
cpu_k6 = arch_k6 | arch_mmx_insn,
cpu_k6_PLUS = arch_k6 | arch_3DNow_insn,
cpu_geode = arch_geode | arch_sse1_insn | arch_3DNowE_insn,
- cpu_athlon_old = arch_athlon | arch_3DNowE_insn | arch_feature_p6_insn,
- cpu_athlon = arch_athlon | arch_sse1_insn | arch_3DNowE_insn | arch_feature_p6_insn,
- cpu_athlon64 = arch_athlon | arch_sse2_insn | arch_3DNowE_insn | arch_feature_p6_insn | arch_64bit_insn,
- cpu_k8 = arch_k8 | arch_3DNowE_insn | arch_feature_p6_insn | arch_64bit_insn,
- cpu_k8_sse3 = arch_k8 | arch_3DNowE_insn | arch_feature_p6_insn | arch_64bit_insn | arch_sse3_insn,
- cpu_k10 = arch_k10 | arch_3DNowE_insn | arch_feature_p6_insn | arch_64bit_insn | arch_sse4a_insn,
+ cpu_athlon_old = arch_athlon | arch_3DNowE_insn | arch_feature_cmov | arch_feature_p6_insn,
+ cpu_athlon = arch_athlon | arch_sse1_insn | arch_3DNowE_insn | arch_feature_cmov | arch_feature_p6_insn,
+ cpu_athlon64 = arch_athlon | arch_sse2_insn | arch_3DNowE_insn | arch_feature_cmov | arch_feature_p6_insn | arch_64bit_insn,
+ cpu_k8 = arch_k8 | arch_3DNowE_insn | arch_feature_cmov | arch_feature_p6_insn | arch_64bit_insn,
+ cpu_k8_sse3 = arch_k8 | arch_3DNowE_insn | arch_feature_cmov | arch_feature_p6_insn | arch_64bit_insn | arch_sse3_insn,
+ cpu_k10 = arch_k10 | arch_3DNowE_insn | arch_feature_cmov | arch_feature_p6_insn | arch_feature_popcnt | arch_64bit_insn | arch_sse4a_insn,
/* other CPUs */
cpu_winchip_c6 = arch_i486 | arch_feature_mmx,
cpu_winchip2 = arch_i486 | arch_feature_mmx | arch_feature_3DNow,
cpu_c3 = arch_i486 | arch_feature_mmx | arch_feature_3DNow,
- cpu_c3_2 = arch_ppro | arch_feature_p6_insn | arch_sse1_insn, /* really no 3DNow! */
+ cpu_c3_2 = arch_ppro | arch_feature_cmov | arch_feature_p6_insn | arch_sse1_insn, /* really no 3DNow! */
cpu_autodetect = 0,
} cpu_support;
static int emit_machcode = 0;
static cpu_support arch = cpu_generic;
static cpu_support opt_arch = cpu_generic;
-static int use_sse2 = 0;
+static int fpu_arch = 0;
static int opt_cc = 1;
static int opt_unsafe_floatconv = 0;
};
static const lc_opt_enum_int_items_t fp_unit_items[] = {
- { "x87" , 0 },
- { "sse2", 1 },
- { NULL, 0 }
+ { "x87" , IA32_FPU_ARCH_X87 },
+ { "sse2", IA32_FPU_ARCH_SSE2 },
+ { "softfloat", IA32_FPU_ARCH_SOFTFLOAT },
+ { NULL, IA32_FPU_ARCH_NONE }
};
static lc_opt_enum_int_var_t fp_unit_var = {
- &use_sse2, fp_unit_items
+ &fpu_arch, fp_unit_items
};
static const lc_opt_table_entry_t ia32_architecture_options[] = {
- LC_OPT_ENT_BOOL("size", "optimize for size", &opt_size),
- LC_OPT_ENT_ENUM_INT("arch", "select the instruction architecture",
- &arch_var),
- LC_OPT_ENT_ENUM_INT("opt", "optimize for instruction architecture",
- &opt_arch_var),
- LC_OPT_ENT_ENUM_INT("fpunit", "select the floating point unit",
- &fp_unit_var),
- LC_OPT_ENT_NEGBIT("nooptcc", "do not optimize calling convention",
- &opt_cc, 1),
- LC_OPT_ENT_BIT("unsafe_floatconv", "do unsafe floating point controlword "
- "optimisations", &opt_unsafe_floatconv, 1),
- LC_OPT_ENT_BOOL("machcode", "output machine code instead of assembler",
- &emit_machcode),
+ LC_OPT_ENT_BOOL ("size", "optimize for size", &opt_size),
+ LC_OPT_ENT_ENUM_INT("arch", "select the instruction architecture", &arch_var),
+ LC_OPT_ENT_ENUM_INT("opt", "optimize for instruction architecture", &opt_arch_var),
+ LC_OPT_ENT_ENUM_INT("fpunit", "select the floating point unit", &fp_unit_var),
+ LC_OPT_ENT_NEGBOOL ("nooptcc", "do not optimize calling convention", &opt_cc),
+ LC_OPT_ENT_BOOL ("unsafe_floatconv", "do unsafe floating point controlword optimisations", &opt_unsafe_floatconv),
+ LC_OPT_ENT_BOOL ("machcode", "output machine code instead of assembler", &emit_machcode),
LC_OPT_LAST
};
unsigned add_features;
} x86_cpu_info_t;
+enum {
+ CPUID_FEAT_ECX_SSE3 = 1 << 0,
+ CPUID_FEAT_ECX_PCLMUL = 1 << 1,
+ CPUID_FEAT_ECX_DTES64 = 1 << 2,
+ CPUID_FEAT_ECX_MONITOR = 1 << 3,
+ CPUID_FEAT_ECX_DS_CPL = 1 << 4,
+ CPUID_FEAT_ECX_VMX = 1 << 5,
+ CPUID_FEAT_ECX_SMX = 1 << 6,
+ CPUID_FEAT_ECX_EST = 1 << 7,
+ CPUID_FEAT_ECX_TM2 = 1 << 8,
+ CPUID_FEAT_ECX_SSSE3 = 1 << 9,
+ CPUID_FEAT_ECX_CID = 1 << 10,
+ CPUID_FEAT_ECX_FMA = 1 << 12,
+ CPUID_FEAT_ECX_CX16 = 1 << 13,
+ CPUID_FEAT_ECX_ETPRD = 1 << 14,
+ CPUID_FEAT_ECX_PDCM = 1 << 15,
+ CPUID_FEAT_ECX_DCA = 1 << 18,
+ CPUID_FEAT_ECX_SSE4_1 = 1 << 19,
+ CPUID_FEAT_ECX_SSE4_2 = 1 << 20,
+ CPUID_FEAT_ECX_x2APIC = 1 << 21,
+ CPUID_FEAT_ECX_MOVBE = 1 << 22,
+ CPUID_FEAT_ECX_POPCNT = 1 << 23,
+ CPUID_FEAT_ECX_AES = 1 << 25,
+ CPUID_FEAT_ECX_XSAVE = 1 << 26,
+ CPUID_FEAT_ECX_OSXSAVE = 1 << 27,
+ CPUID_FEAT_ECX_AVX = 1 << 28,
+
+ CPUID_FEAT_EDX_FPU = 1 << 0,
+ CPUID_FEAT_EDX_VME = 1 << 1,
+ CPUID_FEAT_EDX_DE = 1 << 2,
+ CPUID_FEAT_EDX_PSE = 1 << 3,
+ CPUID_FEAT_EDX_TSC = 1 << 4,
+ CPUID_FEAT_EDX_MSR = 1 << 5,
+ CPUID_FEAT_EDX_PAE = 1 << 6,
+ CPUID_FEAT_EDX_MCE = 1 << 7,
+ CPUID_FEAT_EDX_CX8 = 1 << 8,
+ CPUID_FEAT_EDX_APIC = 1 << 9,
+ CPUID_FEAT_EDX_SEP = 1 << 11,
+ CPUID_FEAT_EDX_MTRR = 1 << 12,
+ CPUID_FEAT_EDX_PGE = 1 << 13,
+ CPUID_FEAT_EDX_MCA = 1 << 14,
+ CPUID_FEAT_EDX_CMOV = 1 << 15,
+ CPUID_FEAT_EDX_PAT = 1 << 16,
+ CPUID_FEAT_EDX_PSE36 = 1 << 17,
+ CPUID_FEAT_EDX_PSN = 1 << 18,
+ CPUID_FEAT_EDX_CLF = 1 << 19,
+ CPUID_FEAT_EDX_DTES = 1 << 21,
+ CPUID_FEAT_EDX_ACPI = 1 << 22,
+ CPUID_FEAT_EDX_MMX = 1 << 23,
+ CPUID_FEAT_EDX_FXSR = 1 << 24,
+ CPUID_FEAT_EDX_SSE = 1 << 25,
+ CPUID_FEAT_EDX_SSE2 = 1 << 26,
+ CPUID_FEAT_EDX_SS = 1 << 27,
+ CPUID_FEAT_EDX_HTT = 1 << 28,
+ CPUID_FEAT_EDX_TM1 = 1 << 29,
+ CPUID_FEAT_EDX_IA64 = 1 << 30,
+ CPUID_FEAT_EDX_PBE = 1 << 31
+};
+
static cpu_support auto_detect_Intel(x86_cpu_info_t const *info)
{
cpu_support auto_arch = cpu_generic;
case 0x0A: /* Pentium III Model 0A */
case 0x0B: /* Pentium III Model 0B */
case 0x0D: /* Pentium M Model 0D */
- auto_arch = arch_ppro;
+ auto_arch = arch_ppro | arch_feature_p6_insn;
break;
case 0x0E: /* Core Model 0E */
- auto_arch = arch_ppro;
+ auto_arch = arch_ppro | arch_feature_p6_insn;
break;
case 0x0F: /* Core2 Model 0F */
case 0x15: /* Intel EP80579 */
case 0x16: /* Celeron Model 16 */
case 0x17: /* Core2 Model 17 */
- auto_arch = arch_core2;
+ auto_arch = arch_core2 | arch_feature_p6_insn;
break;
default:
/* unknown */
case 0x03: /* Pentium 4 Model 03 */
case 0x04: /* Pentium 4 Model 04 */
case 0x06: /* Pentium 4 Model 06 */
- auto_arch = arch_netburst;
+ auto_arch = arch_netburst | arch_feature_p6_insn;
break;
case 0x1A: /* Core i7 */
- auto_arch = arch_core2;
+ auto_arch = arch_core2 | arch_feature_p6_insn;
break;
case 0x1C: /* Atom */
auto_arch = arch_atom;
break;
case 0x1D: /* Xeon MP */
- auto_arch = arch_core2;
+ auto_arch = arch_core2 | arch_feature_p6_insn;
break;
default:
/* unknown */
break;
}
- if (info->edx_features & (1<<23)) auto_arch |= arch_feature_mmx;
- if (info->edx_features & (1<<25)) auto_arch |= arch_feature_sse1;
- if (info->edx_features & (1<<26)) auto_arch |= arch_feature_sse2;
-
- if (info->ecx_features & (1<< 0)) auto_arch |= arch_feature_sse3;
- if (info->ecx_features & (1<< 9)) auto_arch |= arch_feature_ssse3;
- if (info->ecx_features & (1<<19)) auto_arch |= arch_feature_sse4_1;
- if (info->ecx_features & (1<<20)) auto_arch |= arch_feature_sse4_2;
-
return auto_arch;
}
auto_arch = arch_i486;
break;
case 0x05:
- case 0x06: // actually, 6 means K7 family
- auto_arch = arch_k6;
+ switch (model) {
+ case 0x00: /* K5 Model 0 */
+ case 0x01: /* K5 Model 1 */
+ case 0x02: /* K5 Model 2 */
+ case 0x03: /* K5 Model 3 */
+ auto_arch = arch_pentium;
+ break;
+ case 0x06: /* K6 Model 6 */
+ case 0x07: /* K6 Model 7 */
+ case 0x08: /* K6-2 Model 8 */
+ case 0x09: /* K6-III Model 9 */
+ case 0x0D: /* K6-2+ or K6-III+ */
+ auto_arch = arch_k6;
+ break;
+ case 0x0A: /* Geode LX */
+ auto_arch = arch_geode;
+ break;
+ default:
+ /* unknown K6 */
+ auto_arch = arch_k6;
+ break;
+ }
+ break;
+ case 0x06:
+ switch (model) {
+ case 0x01: /* Athlon Model 1 */
+ case 0x02: /* Athlon Model 2 */
+ case 0x03: /* Duron Model 3 */
+ case 0x04: /* Athlon Model 4 */
+ case 0x06: /* Athlon MP/Mobile Athlon Model 6 */
+ case 0x07: /* Mobile Duron Model 7 */
+ case 0x08: /* Athlon (TH/AP core) including Geode NX */
+ case 0x0A: /* Athlon (BT core) */
+ auto_arch = arch_athlon | arch_feature_p6_insn;
+ break;
+ default:
+ /* unknown K7 */
+ auto_arch = arch_athlon | arch_feature_p6_insn;
+ break;
+ }
break;
case 0x0F:
- auto_arch = arch_k8;
+ auto_arch = arch_k8 | arch_feature_p6_insn;
break;
case 0x1F:
- case 0x2F:
- auto_arch = arch_k10;
+ case 0x2F: /* AMD Family 11h */
+ auto_arch = arch_k10 | arch_feature_p6_insn;
break;
default:
/* unknown */
break;
}
- if (info->edx_features & (1<<23)) auto_arch |= arch_feature_mmx;
- if (info->edx_features & (1<<25)) auto_arch |= arch_feature_sse1;
- if (info->edx_features & (1<<26)) auto_arch |= arch_feature_sse2;
-
- if (info->ecx_features & (1<< 0)) auto_arch |= arch_feature_sse3;
- if (info->ecx_features & (1<< 9)) auto_arch |= arch_feature_ssse3;
- if (info->ecx_features & (1<<19)) auto_arch |= arch_feature_sse4_1;
- if (info->ecx_features & (1<<20)) auto_arch |= arch_feature_sse4_2;
-
return auto_arch;
}
static void x86_cpuid(cpuid_registers *regs, unsigned level)
{
#if defined(__GNUC__)
+# if defined(__PIC__) && !defined(__amd64) // GCC cannot handle EBX in PIC
+ __asm (
+ "pushl %%ebx\n\t"
+ "cpuid\n\t"
+ "movl %%ebx, %1\n\t"
+ "popl %%ebx"
+ : "=a" (regs->r.eax), "=r" (regs->r.ebx), "=c" (regs->r.ecx), "=d" (regs->r.edx)
+ : "a" (level)
+ );
+# else
__asm ("cpuid\n\t"
: "=a" (regs->r.eax), "=b" (regs->r.ebx), "=c" (regs->r.ecx), "=d" (regs->r.edx)
: "a" (level)
);
+# endif
#elif defined(_MSC_VER)
__cpuid(regs->bulk, level);
+#else
+# error CPUID is missing
#endif
}
/* We use the cpuid instruction to detect the CPU features */
if (x86_toogle_cpuid()) {
cpuid_registers regs;
- unsigned highest_level;
char vendorid[13];
x86_cpu_info_t cpu_info;
/* get vendor ID */
x86_cpuid(®s, 0);
- highest_level = regs.r.eax;
memcpy(&vendorid[0], ®s.r.ebx, 4);
memcpy(&vendorid[4], ®s.r.edx, 4);
memcpy(&vendorid[8], ®s.r.ecx, 4);
auto_arch = auto_detect_Intel(&cpu_info);
} else if (0 == strcmp(vendorid, "AuthenticAMD")) {
auto_arch = auto_detect_AMD(&cpu_info);
+ } else if (0 == strcmp(vendorid, "Geode by NSC")) {
+ auto_arch = arch_geode;
}
+
+ if (cpu_info.edx_features & CPUID_FEAT_EDX_CMOV)
+ auto_arch |= arch_feature_cmov;
+ if (cpu_info.edx_features & CPUID_FEAT_EDX_MMX)
+ auto_arch |= arch_feature_mmx;
+ if (cpu_info.edx_features & CPUID_FEAT_EDX_SSE)
+ auto_arch |= arch_feature_sse1;
+ if (cpu_info.edx_features & CPUID_FEAT_EDX_SSE2)
+ auto_arch |= arch_feature_sse2;
+
+ if (cpu_info.ecx_features & CPUID_FEAT_ECX_SSE3)
+ auto_arch |= arch_feature_sse3;
+ if (cpu_info.ecx_features & CPUID_FEAT_ECX_SSSE3)
+ auto_arch |= arch_feature_ssse3;
+ if (cpu_info.ecx_features & CPUID_FEAT_ECX_SSE4_1)
+ auto_arch |= arch_feature_sse4_1;
+ if (cpu_info.ecx_features & CPUID_FEAT_ECX_SSE4_2)
+ auto_arch |= arch_feature_sse4_2;
+ if (cpu_info.ecx_features & CPUID_FEAT_ECX_POPCNT)
+ auto_arch |= arch_feature_popcnt;
}
arch = auto_arch;
/* P4s don't like inc/decs because they only partially write the flags
* register which produces false dependencies */
c->use_incdec = !FLAGS(opt_arch, arch_netburst | arch_nocona | arch_core2 | arch_geode) || opt_size;
- c->use_sse2 = use_sse2 && FLAGS(arch, arch_feature_sse2);
+ c->use_softfloat = FLAGS(fpu_arch, IA32_FPU_ARCH_SOFTFLOAT);
+ c->use_sse2 = FLAGS(fpu_arch, IA32_FPU_ARCH_SSE2) && FLAGS(arch, arch_feature_sse2);
c->use_ffreep = FLAGS(opt_arch, arch_athlon_plus);
c->use_ftst = !FLAGS(arch, arch_feature_p6_insn);
/* valgrind can't cope with femms yet and the usefulness of the optimization
c->use_femms = 0;
#endif
c->use_fucomi = FLAGS(arch, arch_feature_p6_insn);
- c->use_cmov = FLAGS(arch, arch_feature_p6_insn);
+ c->use_cmov = FLAGS(arch, arch_feature_cmov);
c->use_modeD_moves = FLAGS(opt_arch, arch_generic32 | arch_athlon_plus | arch_netburst | arch_nocona | arch_core2 | arch_ppro | arch_geode);
c->use_add_esp_4 = FLAGS(opt_arch, arch_generic32 | arch_athlon_plus | arch_netburst | arch_nocona | arch_core2 | arch_geode) && !opt_size;
c->use_add_esp_8 = FLAGS(opt_arch, arch_generic32 | arch_athlon_plus | arch_netburst | arch_nocona | arch_core2 | arch_ppro | arch_geode | arch_i386 | arch_i486) && !opt_size;
c->use_pxor = FLAGS(opt_arch, arch_netburst);
c->use_mov_0 = FLAGS(opt_arch, arch_k6) && !opt_size;
c->use_short_sex_eax = !FLAGS(opt_arch, arch_k6) && !opt_size;
- c->use_pad_return = FLAGS(opt_arch, arch_athlon_plus | arch_core2 | arch_generic32) && !opt_size;
+ c->use_pad_return = FLAGS(opt_arch, arch_athlon_plus) && !opt_size;
c->use_bt = FLAGS(opt_arch, arch_core2 | arch_athlon_plus) || opt_size;
c->use_fisttp = FLAGS(opt_arch & arch, arch_feature_sse3);
c->use_sse_prefetch = FLAGS(arch, (arch_feature_3DNowE | arch_feature_sse1));
c->use_3dnow_prefetch = FLAGS(arch, arch_feature_3DNow);
- c->use_popcnt = FLAGS(arch, (arch_feature_sse4_2 | arch_feature_sse4a));
+ c->use_popcnt = FLAGS(arch, arch_feature_popcnt);
c->use_i486 = (arch & arch_mask) >= arch_i486;
c->optimize_cc = opt_cc;
c->use_unsafe_floatconv = opt_unsafe_floatconv;
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