1 //===-- Host.cpp - Implement OS Host Concept --------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This header file implements the operating system Host concept.
12 //===----------------------------------------------------------------------===//
14 #include "llvm/Support/Host.h"
15 #include "llvm/Config/config.h"
18 // Include the platform-specific parts of this class.
20 #include "Unix/Host.inc"
23 #include "Windows/Host.inc"
29 //===----------------------------------------------------------------------===//
31 // Implementations of the CPU detection routines
33 //===----------------------------------------------------------------------===//
37 #if defined(i386) || defined(__i386__) || defined(__x86__) || defined(_M_IX86)\
38 || defined(__x86_64__) || defined(_M_AMD64) || defined (_M_X64)
40 /// GetX86CpuIDAndInfo - Execute the specified cpuid and return the 4 values in the
41 /// specified arguments. If we can't run cpuid on the host, return true.
42 static bool GetX86CpuIDAndInfo(unsigned value, unsigned *rEAX,
43 unsigned *rEBX, unsigned *rECX, unsigned *rEDX) {
44 #if defined(__x86_64__) || defined(_M_AMD64) || defined (_M_X64)
46 // gcc doesn't know cpuid would clobber ebx/rbx. Preseve it manually.
47 asm ("movq\t%%rbx, %%rsi\n\t"
49 "xchgq\t%%rbx, %%rsi\n\t"
56 #elif defined(_MSC_VER)
58 __cpuid(registers, value);
65 #elif defined(i386) || defined(__i386__) || defined(__x86__) || defined(_M_IX86)
67 asm ("movl\t%%ebx, %%esi\n\t"
69 "xchgl\t%%ebx, %%esi\n\t"
76 #elif defined(_MSC_VER)
81 mov dword ptr [esi],eax
83 mov dword ptr [esi],ebx
85 mov dword ptr [esi],ecx
87 mov dword ptr [esi],edx
95 static void DetectX86FamilyModel(unsigned EAX, unsigned &Family,
97 Family = (EAX >> 8) & 0xf; // Bits 8 - 11
98 Model = (EAX >> 4) & 0xf; // Bits 4 - 7
99 if (Family == 6 || Family == 0xf) {
101 // Examine extended family ID if family ID is F.
102 Family += (EAX >> 20) & 0xff; // Bits 20 - 27
103 // Examine extended model ID if family ID is 6 or F.
104 Model += ((EAX >> 16) & 0xf) << 4; // Bits 16 - 19
108 std::string sys::getHostCPUName() {
109 unsigned EAX = 0, EBX = 0, ECX = 0, EDX = 0;
110 if (GetX86CpuIDAndInfo(0x1, &EAX, &EBX, &ECX, &EDX))
114 DetectX86FamilyModel(EAX, Family, Model);
116 bool HasSSE3 = (ECX & 0x1);
117 GetX86CpuIDAndInfo(0x80000001, &EAX, &EBX, &ECX, &EDX);
118 bool Em64T = (EDX >> 29) & 0x1;
125 GetX86CpuIDAndInfo(0, &EAX, text.u+0, text.u+2, text.u+1);
126 if (memcmp(text.c, "GenuineIntel", 12) == 0) {
132 case 0: // Intel486 DX processors
133 case 1: // Intel486 DX processors
134 case 2: // Intel486 SX processors
135 case 3: // Intel487 processors, IntelDX2 OverDrive processors,
136 // IntelDX2 processors
137 case 4: // Intel486 SL processor
138 case 5: // IntelSX2 processors
139 case 7: // Write-Back Enhanced IntelDX2 processors
140 case 8: // IntelDX4 OverDrive processors, IntelDX4 processors
141 default: return "i486";
145 case 1: // Pentium OverDrive processor for Pentium processor (60, 66),
146 // Pentium processors (60, 66)
147 case 2: // Pentium OverDrive processor for Pentium processor (75, 90,
148 // 100, 120, 133), Pentium processors (75, 90, 100, 120, 133,
150 case 3: // Pentium OverDrive processors for Intel486 processor-based
154 case 4: // Pentium OverDrive processor with MMX technology for Pentium
155 // processor (75, 90, 100, 120, 133), Pentium processor with
156 // MMX technology (166, 200)
157 return "pentium-mmx";
159 default: return "pentium";
163 case 1: // Pentium Pro processor
166 case 3: // Intel Pentium II OverDrive processor, Pentium II processor,
168 case 5: // Pentium II processor, model 05, Pentium II Xeon processor,
169 // model 05, and Intel Celeron processor, model 05
170 case 6: // Celeron processor, model 06
173 case 7: // Pentium III processor, model 07, and Pentium III Xeon
174 // processor, model 07
175 case 8: // Pentium III processor, model 08, Pentium III Xeon processor,
176 // model 08, and Celeron processor, model 08
177 case 10: // Pentium III Xeon processor, model 0Ah
178 case 11: // Pentium III processor, model 0Bh
181 case 9: // Intel Pentium M processor, Intel Celeron M processor model 09.
182 case 13: // Intel Pentium M processor, Intel Celeron M processor, model
183 // 0Dh. All processors are manufactured using the 90 nm process.
186 case 14: // Intel Core Duo processor, Intel Core Solo processor, model
187 // 0Eh. All processors are manufactured using the 65 nm process.
190 case 15: // Intel Core 2 Duo processor, Intel Core 2 Duo mobile
191 // processor, Intel Core 2 Quad processor, Intel Core 2 Quad
192 // mobile processor, Intel Core 2 Extreme processor, Intel
193 // Pentium Dual-Core processor, Intel Xeon processor, model
194 // 0Fh. All processors are manufactured using the 65 nm process.
195 case 22: // Intel Celeron processor model 16h. All processors are
196 // manufactured using the 65 nm process
199 case 21: // Intel EP80579 Integrated Processor and Intel EP80579
200 // Integrated Processor with Intel QuickAssist Technology
201 return "i686"; // FIXME: ???
203 case 23: // Intel Core 2 Extreme processor, Intel Xeon processor, model
204 // 17h. All processors are manufactured using the 45 nm process.
206 // 45nm: Penryn , Wolfdale, Yorkfield (XE)
209 case 26: // Intel Core i7 processor and Intel Xeon processor. All
210 // processors are manufactured using the 45 nm process.
211 case 29: // Intel Xeon processor MP. All processors are manufactured using
212 // the 45 nm process.
213 case 30: // Intel(R) Core(TM) i7 CPU 870 @ 2.93GHz.
214 // As found in a Summer 2010 model iMac.
215 case 37: // Intel Core i7, laptop version.
219 case 42: // Intel Core i7 processor. All processors are manufactured
220 // using the 32 nm process.
221 case 44: // Intel Core i7 processor and Intel Xeon processor. All
222 // processors are manufactured using the 32 nm process.
226 case 28: // Intel Atom processor. All processors are manufactured using
230 default: return "i686";
234 case 0: // Pentium 4 processor, Intel Xeon processor. All processors are
235 // model 00h and manufactured using the 0.18 micron process.
236 case 1: // Pentium 4 processor, Intel Xeon processor, Intel Xeon
237 // processor MP, and Intel Celeron processor. All processors are
238 // model 01h and manufactured using the 0.18 micron process.
239 case 2: // Pentium 4 processor, Mobile Intel Pentium 4 processor - M,
240 // Intel Xeon processor, Intel Xeon processor MP, Intel Celeron
241 // processor, and Mobile Intel Celeron processor. All processors
242 // are model 02h and manufactured using the 0.13 micron process.
243 return (Em64T) ? "x86-64" : "pentium4";
245 case 3: // Pentium 4 processor, Intel Xeon processor, Intel Celeron D
246 // processor. All processors are model 03h and manufactured using
247 // the 90 nm process.
248 case 4: // Pentium 4 processor, Pentium 4 processor Extreme Edition,
249 // Pentium D processor, Intel Xeon processor, Intel Xeon
250 // processor MP, Intel Celeron D processor. All processors are
251 // model 04h and manufactured using the 90 nm process.
252 case 6: // Pentium 4 processor, Pentium D processor, Pentium processor
253 // Extreme Edition, Intel Xeon processor, Intel Xeon processor
254 // MP, Intel Celeron D processor. All processors are model 06h
255 // and manufactured using the 65 nm process.
256 return (Em64T) ? "nocona" : "prescott";
259 return (Em64T) ? "x86-64" : "pentium4";
266 } else if (memcmp(text.c, "AuthenticAMD", 12) == 0) {
267 // FIXME: this poorly matches the generated SubtargetFeatureKV table. There
268 // appears to be no way to generate the wide variety of AMD-specific targets
269 // from the information returned from CPUID.
277 case 8: return "k6-2";
279 case 13: return "k6-3";
280 default: return "pentium";
284 case 4: return "athlon-tbird";
287 case 8: return "athlon-mp";
288 case 10: return "athlon-xp";
289 default: return "athlon";
295 case 1: return "opteron";
296 case 5: return "athlon-fx"; // also opteron
297 default: return "athlon64";
308 std::string sys::getHostCPUName() {
313 bool sys::getHostCPUFeatures(StringMap<bool> &Features){