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Add feature-based fallbacks for unknown/future Intel CPUIDs #5655

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Merged
martin-frbg merged 1 commit into from
Feb 20, 2026
+44 −5
Merged

Add feature-based fallbacks for unknown/future Intel CPUIDs #5655

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49 changes: 44 additions & 5 deletions cpuid_x86.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1563,7 +1563,6 @@ int get_cpuname(void){
break;
case 11: //family 6 exmodel 11
switch (model) {
case 5: // Arrow Lake H/U
case 7: // Raptor Lake
case 10:
case 15:
Expand All @@ -1589,7 +1588,6 @@ int get_cpuname(void){
break;
case 15:
case 6: // Arrow Lake
case 5:
if(support_avx512())
return CPUTYPE_SAPPHIRERAPIDS;
if(support_avx2())
Expand All @@ -1611,8 +1609,30 @@ int get_cpuname(void){
case 1 :
return CPUTYPE_ITANIUM;
}
// new family 15 - 2026 and beyond
if(support_amx_bf16())
return CPUTYPE_SAPPHIRERAPIDS;
if(support_avx512_bf16())
return CPUTYPE_COOPERLAKE;
if(support_avx512())
return CPUTYPE_SKYLAKEX;
if(support_avx2())
return CPUTYPE_HASWELL;
if(support_avx())
return CPUTYPE_SANDYBRIDGE;
break;
}
// other new cpu family numbers
if(support_amx_bf16())
return CPUTYPE_SAPPHIRERAPIDS;
if(support_avx512_bf16())
return CPUTYPE_COOPERLAKE;
if(support_avx512())
return CPUTYPE_SKYLAKEX;
if(support_avx2())
return CPUTYPE_HASWELL;
if(support_avx())
return CPUTYPE_SANDYBRIDGE;
return CPUTYPE_INTEL_UNKNOWN;
}

Expand Down Expand Up @@ -2420,7 +2440,6 @@ int get_coretype(void){

case 11:
switch (model) {
case 5: // Arrow Lake H/U
case 7: // Raptor Lake
case 10:
case 15:
Expand All @@ -2437,7 +2456,6 @@ int get_coretype(void){
}
case 12:
switch (model) {
case 5:
case 6: // Arrow Lake
if(support_amx_bf16())
return CORE_SAPPHIRERAPIDS;
Expand All @@ -2463,7 +2481,28 @@ int get_coretype(void){
}
case 15:
if (model <= 0x2) return CORE_NORTHWOOD;
else return CORE_PRESCOTT;
if(support_amx_bf16())
return CORE_SAPPHIRERAPIDS;
if(support_avx512_bf16())
return CORE_COOPERLAKE;
if(support_avx512())
return CORE_SKYLAKEX;
if(support_avx2())
return CORE_HASWELL;
if(support_avx())
return CORE_SANDYBRIDGE;
return CORE_PRESCOTT;
default : // family types since 2026
if(support_amx_bf16())
return CORE_SAPPHIRERAPIDS;
if(support_avx512_bf16())
return CORE_COOPERLAKE;
if(support_avx512())
return CORE_SKYLAKEX;
if(support_avx2())
return CORE_HASWELL;
if(support_avx())
return CORE_SANDYBRIDGE;
}
}

Expand Down
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