| ... | ... | @@ -58,7 +58,7 @@ pub fn detectNativeCpuAndFeatures(arch: Target.Cpu.Arch, os: Target.Os, query: T |
| 58 | 58 | detectIntelProcessor(&cpu, family, model, brand_id); |
| 59 | 59 | }, |
| 60 | 60 | 0x68747541 => { |
| 61 | | detectAMDProcessor(&cpu, family, model); |
| 61 | if (detectAMDProcessor(cpu.features, family, model)) |m| cpu.model = m; |
| 62 | 62 | }, |
| 63 | 63 | else => {}, |
| 64 | 64 | } |
| ... | ... | @@ -224,97 +224,43 @@ fn detectIntelProcessor(cpu: *Target.Cpu, family: u32, model: u32, brand_id: u32 |
| 224 | 224 | } |
| 225 | 225 | } |
| 226 | 226 | |
| 227 | | fn detectAMDProcessor(cpu: *Target.Cpu, family: u32, model: u32) void { |
| 228 | | // AMD's cpuid information is less than optimal for determining a CPU model. |
| 229 | | // This is very unscientific, and not necessarily correct. |
| 230 | | switch (family) { |
| 231 | | 4 => { |
| 232 | | cpu.model = &Target.x86.cpu.i486; |
| 233 | | return; |
| 234 | | }, |
| 235 | | 5 => { |
| 236 | | cpu.model = &Target.x86.cpu.pentium; |
| 237 | | switch (model) { |
| 238 | | 6, 7 => { |
| 239 | | cpu.model = &Target.x86.cpu.k6; |
| 240 | | return; |
| 241 | | }, |
| 242 | | 8 => { |
| 243 | | cpu.model = &Target.x86.cpu.k6_2; |
| 244 | | return; |
| 245 | | }, |
| 246 | | 9, 13 => { |
| 247 | | cpu.model = &Target.x86.cpu.k6_3; |
| 248 | | return; |
| 249 | | }, |
| 250 | | 10 => { |
| 251 | | cpu.model = &Target.x86.cpu.geode; |
| 252 | | return; |
| 253 | | }, |
| 254 | | else => {}, |
| 255 | | } |
| 256 | | return; |
| 257 | | }, |
| 258 | | 6 => { |
| 259 | | if (Target.x86.featureSetHas(cpu.features, .sse)) { |
| 260 | | cpu.model = &Target.x86.cpu.athlon_xp; |
| 261 | | return; |
| 262 | | } |
| 263 | | cpu.model = &Target.x86.cpu.athlon; |
| 264 | | return; |
| 265 | | }, |
| 266 | | 15 => { |
| 267 | | if (Target.x86.featureSetHas(cpu.features, .sse3)) { |
| 268 | | cpu.model = &Target.x86.cpu.k8_sse3; |
| 269 | | return; |
| 270 | | } |
| 271 | | cpu.model = &Target.x86.cpu.k8; |
| 272 | | return; |
| 227 | fn detectAMDProcessor(features: Target.Cpu.Feature.Set, family: u32, model: u32) ?*const Target.Cpu.Model { |
| 228 | return switch (family) { |
| 229 | 4 => &Target.x86.cpu.i486, |
| 230 | 5 => switch (model) { |
| 231 | 6, 7 => &Target.x86.cpu.k6, |
| 232 | 8 => &Target.x86.cpu.k6_2, |
| 233 | 9, 13 => &Target.x86.cpu.k6_3, |
| 234 | 10 => &Target.x86.cpu.geode, |
| 235 | else => &Target.x86.cpu.pentium, |
| 273 | 236 | }, |
| 274 | | 16 => { |
| 275 | | cpu.model = &Target.x86.cpu.amdfam10; |
| 276 | | return; |
| 237 | 6 => if (Target.x86.featureSetHas(features, .sse)) |
| 238 | &Target.x86.cpu.athlon_xp |
| 239 | else |
| 240 | &Target.x86.cpu.athlon, |
| 241 | 15 => if (Target.x86.featureSetHas(features, .sse3)) |
| 242 | &Target.x86.cpu.k8_sse3 |
| 243 | else |
| 244 | &Target.x86.cpu.k8, |
| 245 | 16 => &Target.x86.cpu.amdfam10, |
| 246 | 20 => &Target.x86.cpu.btver1, |
| 247 | 21 => switch (model) { |
| 248 | 0x60...0x7f => &Target.x86.cpu.bdver4, |
| 249 | 0x30...0x3f => &Target.x86.cpu.bdver3, |
| 250 | 0x02, 0x10...0x1f => &Target.x86.cpu.bdver2, |
| 251 | else => &Target.x86.cpu.bdver1, |
| 277 | 252 | }, |
| 278 | | 20 => { |
| 279 | | cpu.model = &Target.x86.cpu.btver1; |
| 280 | | return; |
| 253 | 22 => &Target.x86.cpu.btver2, |
| 254 | 23 => switch (model) { |
| 255 | 0x30...0x3f, 0x71 => &Target.x86.cpu.znver2, |
| 256 | else => &Target.x86.cpu.znver1, |
| 281 | 257 | }, |
| 282 | | 21 => { |
| 283 | | cpu.model = &Target.x86.cpu.bdver1; |
| 284 | | if (model >= 0x60 and model <= 0x7f) { |
| 285 | | cpu.model = &Target.x86.cpu.bdver4; |
| 286 | | return; |
| 287 | | } |
| 288 | | if (model >= 0x30 and model <= 0x3f) { |
| 289 | | cpu.model = &Target.x86.cpu.bdver3; |
| 290 | | return; |
| 291 | | } |
| 292 | | if ((model >= 0x10 and model <= 0x1f) or model == 0x02) { |
| 293 | | cpu.model = &Target.x86.cpu.bdver2; |
| 294 | | return; |
| 295 | | } |
| 296 | | return; |
| 258 | 25 => switch (model) { |
| 259 | 0x10...0x1f, 0x60...0x6f, 0x70...0x77, 0x78...0x7f, 0xa0...0xaf => &Target.x86.cpu.znver4, |
| 260 | else => &Target.x86.cpu.znver3, |
| 297 | 261 | }, |
| 298 | | 22 => { |
| 299 | | cpu.model = &Target.x86.cpu.btver2; |
| 300 | | return; |
| 301 | | }, |
| 302 | | 23 => { |
| 303 | | cpu.model = &Target.x86.cpu.znver1; |
| 304 | | if ((model >= 0x30 and model <= 0x3f) or model == 0x71) { |
| 305 | | cpu.model = &Target.x86.cpu.znver2; |
| 306 | | return; |
| 307 | | } |
| 308 | | return; |
| 309 | | }, |
| 310 | | 25 => { |
| 311 | | cpu.model = &Target.x86.cpu.znver3; |
| 312 | | return; |
| 313 | | }, |
| 314 | | else => { |
| 315 | | return; |
| 316 | | }, |
| 317 | | } |
| 262 | else => null, |
| 263 | }; |
| 318 | 264 | } |
| 319 | 265 | |
| 320 | 266 | fn detectNativeFeatures(cpu: *Target.Cpu, os_tag: Target.Os.Tag) void { |
Andrew Kelley <andrew@ziglang.org> 2024-04-28 20:22:23-07:00
lib