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Diffstat (limited to 'contrib/gcc/config/i386/driver-i386.c')
-rw-r--r--contrib/gcc/config/i386/driver-i386.c314
1 files changed, 0 insertions, 314 deletions
diff --git a/contrib/gcc/config/i386/driver-i386.c b/contrib/gcc/config/i386/driver-i386.c
deleted file mode 100644
index 665826318eec..000000000000
--- a/contrib/gcc/config/i386/driver-i386.c
+++ /dev/null
@@ -1,314 +0,0 @@
-/* Subroutines for the gcc driver.
- Copyright (C) 2006, 2007 Free Software Foundation, Inc.
-
-This file is part of GCC.
-
-GCC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GCC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to
-the Free Software Foundation, 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
-
-#include "config.h"
-#include "system.h"
-#include "coretypes.h"
-#include "tm.h"
-#include <stdlib.h>
-
-const char *host_detect_local_cpu (int argc, const char **argv);
-
-#ifdef GCC_VERSION
-#define cpuid(num,a,b,c,d) \
- asm volatile ("xchgl %%ebx, %1; cpuid; xchgl %%ebx, %1" \
- : "=a" (a), "=r" (b), "=c" (c), "=d" (d) \
- : "0" (num))
-
-#define bit_CMPXCHG8B (1 << 8)
-#define bit_CMOV (1 << 15)
-#define bit_MMX (1 << 23)
-#define bit_SSE (1 << 25)
-#define bit_SSE2 (1 << 26)
-
-#define bit_SSE3 (1 << 0)
-#define bit_SSSE3 (1 << 9)
-#define bit_SSE4a (1 << 6)
-#define bit_CMPXCHG16B (1 << 13)
-
-#define bit_3DNOW (1 << 31)
-#define bit_3DNOWP (1 << 30)
-#define bit_LM (1 << 29)
-
-/* This will be called by the spec parser in gcc.c when it sees
- a %:local_cpu_detect(args) construct. Currently it will be called
- with either "arch" or "tune" as argument depending on if -march=native
- or -mtune=native is to be substituted.
-
- It returns a string containing new command line parameters to be
- put at the place of the above two options, depending on what CPU
- this is executed. E.g. "-march=k8" on an AMD64 machine
- for -march=native.
-
- ARGC and ARGV are set depending on the actual arguments given
- in the spec. */
-const char *host_detect_local_cpu (int argc, const char **argv)
-{
- const char *cpu = NULL;
- enum processor_type processor = PROCESSOR_I386;
- unsigned int eax, ebx, ecx, edx;
- unsigned int max_level;
- unsigned int vendor;
- unsigned int ext_level;
- unsigned char has_mmx = 0, has_3dnow = 0, has_3dnowp = 0, has_sse = 0;
- unsigned char has_sse2 = 0, has_sse3 = 0, has_ssse3 = 0, has_cmov = 0;
- unsigned char has_longmode = 0, has_cmpxchg8b = 0, has_sse4a = 0;
- unsigned char is_amd = 0;
- unsigned int family = 0;
- bool arch;
-
- if (argc < 1)
- return NULL;
-
- arch = strcmp (argv[0], "arch") == 0;
- if (!arch && strcmp (argv[0], "tune"))
- return NULL;
-
-#ifndef __x86_64__
- /* See if we can use cpuid. */
- asm volatile ("pushfl; pushfl; popl %0; movl %0,%1; xorl %2,%0;"
- "pushl %0; popfl; pushfl; popl %0; popfl"
- : "=&r" (eax), "=&r" (ebx)
- : "i" (0x00200000));
-
- if (((eax ^ ebx) & 0x00200000) == 0)
- goto done;
-#endif
-
- processor = PROCESSOR_PENTIUM;
-
- /* Check the highest input value for eax. */
- cpuid (0, eax, ebx, ecx, edx);
- max_level = eax;
- /* We only look at the first four characters. */
- vendor = ebx;
- if (max_level == 0)
- goto done;
-
- cpuid (1, eax, ebx, ecx, edx);
- has_cmpxchg8b = !!(edx & bit_CMPXCHG8B);
- has_cmov = !!(edx & bit_CMOV);
- has_mmx = !!(edx & bit_MMX);
- has_sse = !!(edx & bit_SSE);
- has_sse2 = !!(edx & bit_SSE2);
- has_sse3 = !!(ecx & bit_SSE3);
- has_ssse3 = !!(ecx & bit_SSSE3);
- /* We don't care for extended family. */
- family = (eax >> 8) & ~(1 << 4);
-
- cpuid (0x80000000, eax, ebx, ecx, edx);
- ext_level = eax;
- if (ext_level >= 0x80000000)
- {
- cpuid (0x80000001, eax, ebx, ecx, edx);
- has_3dnow = !!(edx & bit_3DNOW);
- has_3dnowp = !!(edx & bit_3DNOWP);
- has_longmode = !!(edx & bit_LM);
- has_sse4a = !!(ecx & bit_SSE4a);
- }
-
- is_amd = vendor == *(unsigned int*)"Auth";
-
- if (is_amd)
- {
- if (has_mmx)
- processor = PROCESSOR_K6;
- if (has_3dnowp)
- processor = PROCESSOR_ATHLON;
- if (has_sse2 || has_longmode)
- processor = PROCESSOR_K8;
- if (has_sse4a)
- processor = PROCESSOR_AMDFAM10;
- }
- else
- {
- switch (family)
- {
- case 5:
- /* Default is PROCESSOR_PENTIUM. */
- break;
- case 6:
- processor = PROCESSOR_PENTIUMPRO;
- break;
- case 15:
- processor = PROCESSOR_PENTIUM4;
- break;
- default:
- /* We have no idea. Use something reasonable. */
- if (arch)
- {
- if (has_ssse3)
- cpu = "core2";
- else if (has_sse3)
- {
- if (has_longmode)
- cpu = "nocona";
- else
- cpu = "prescott";
- }
- else if (has_sse2)
- cpu = "pentium4";
- else if (has_cmov)
- cpu = "pentiumpro";
- else if (has_mmx)
- cpu = "pentium-mmx";
- else if (has_cmpxchg8b)
- cpu = "pentium";
- else
- cpu = "i386";
- }
- else
- cpu = "generic";
- goto done;
- break;
- }
- }
-
- switch (processor)
- {
- case PROCESSOR_I386:
- cpu = "i386";
- break;
- case PROCESSOR_I486:
- cpu = "i486";
- break;
- case PROCESSOR_PENTIUM:
- if (has_mmx)
- cpu = "pentium-mmx";
- else
- cpu = "pentium";
- break;
- case PROCESSOR_PENTIUMPRO:
- if (arch)
- {
- if (has_sse3)
- {
- if (has_longmode)
- {
- /* It is Core 2 Duo. */
- cpu = "nocona";
- }
- else
- {
- /* It is Core Duo. */
- cpu = "prescott";
- }
- }
- else if (has_sse2)
- {
- /* It is Pentium M. */
- cpu = "pentium4";
- }
- else if (has_sse)
- {
- /* It is Pentium III. */
- cpu = "pentium3";
- }
- else if (has_mmx)
- {
- /* It is Pentium II. */
- cpu = "pentium2";
- }
- else
- {
- /* Default to Pentium Pro. */
- cpu = "pentiumpro";
- }
- }
- else
- {
- /* For -mtune, we default to -mtune=generic. */
- cpu = "generic";
- }
- break;
- case PROCESSOR_GEODE:
- cpu = "geode";
- break;
- case PROCESSOR_K6:
- if (has_3dnow)
- cpu = "k6-3";
- else
- cpu = "k6";
- break;
- case PROCESSOR_ATHLON:
- if (has_sse)
- cpu = "athlon-4";
- else
- cpu = "athlon";
- break;
- case PROCESSOR_PENTIUM4:
- if (has_sse3)
- {
- if (has_longmode)
- cpu = "nocona";
- else
- cpu = "prescott";
- }
- else
- cpu = "pentium4";
- break;
- case PROCESSOR_K8:
- cpu = "k8";
- break;
- case PROCESSOR_NOCONA:
- cpu = "nocona";
- break;
- case PROCESSOR_AMDFAM10:
- cpu = "amdfam10";
- break;
- case PROCESSOR_GENERIC32:
- case PROCESSOR_GENERIC64:
- cpu = "generic";
- break;
- default:
- abort ();
- break;
- }
-
-done:
- return concat ("-m", argv[0], "=", cpu, NULL);
-}
-#else
-/* If we aren't compiling with GCC we just provide a minimal
- default value. */
-const char *host_detect_local_cpu (int argc, const char **argv)
-{
- const char *cpu;
- bool arch;
-
- if (argc < 1)
- return NULL;
-
- arch = strcmp (argv[0], "arch") == 0;
- if (!arch && strcmp (argv[0], "tune"))
- return NULL;
-
- if (arch)
- {
- /* FIXME: i386 is wrong for 64bit compiler. How can we tell if
- we are generating 64bit or 32bit code? */
- cpu = "i386";
- }
- else
- cpu = "generic";
-
- return concat ("-m", argv[0], "=", cpu, NULL);
-}
-#endif /* GCC_VERSION */
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