1 files changed, 20 insertions, 0 deletions

diff --git a/contrib/llvm-project/compiler-rt/lib/builtins/cpu_model/x86.c b/contrib/llvm-project/compiler-rt/lib/builtins/cpu_model/x86.c
index 867ed97e57bf..b1c4abd9d11d 100644
--- a/contrib/llvm-project/compiler-rt/lib/builtins/cpu_model/x86.c
+++ b/contrib/llvm-project/compiler-rt/lib/builtins/cpu_model/x86.c
@@ -59,6 +59,7 @@ enum ProcessorTypes {
   INTEL_SIERRAFOREST,
   INTEL_GRANDRIDGE,
   INTEL_CLEARWATERFOREST,
+  AMDFAM1AH,
   CPU_TYPE_MAX
 };
 
@@ -97,6 +98,7 @@ enum ProcessorSubtypes {
   INTEL_COREI7_ARROWLAKE,
   INTEL_COREI7_ARROWLAKE_S,
   INTEL_COREI7_PANTHERLAKE,
+  AMDFAM1AH_ZNVER5,
   CPU_SUBTYPE_MAX
 };
 
@@ -803,6 +805,24 @@ static const char *getAMDProcessorTypeAndSubtype(unsigned Family,
       break; //  "znver4"
     }
     break; // family 19h
+  case 26:
+    CPU = "znver5";
+    *Type = AMDFAM1AH;
+    if (Model <= 0x77) {
+      // Models 00h-0Fh (Breithorn).
+      // Models 10h-1Fh (Breithorn-Dense).
+      // Models 20h-2Fh (Strix 1).
+      // Models 30h-37h (Strix 2).
+      // Models 38h-3Fh (Strix 3).
+      // Models 40h-4Fh (Granite Ridge).
+      // Models 50h-5Fh (Weisshorn).
+      // Models 60h-6Fh (Krackan1).
+      // Models 70h-77h (Sarlak).
+      CPU = "znver5";
+      *Subtype = AMDFAM1AH_ZNVER5;
+      break; //  "znver5"
+    }
+    break;
   default:
     break; // Unknown AMD CPU.
   }