Inherit from Sierraforest

phoebewang · phoebewang · commit 5af0f87d87a1 · 2025-06-19T21:30:03.000+08:00
diff --git a/llvm/lib/Target/X86/X86.td b/llvm/lib/Target/X86/X86.td
@@ -1334,10 +1334,14 @@ def ProcessorFeatures {
 
 
   // Clearwaterforest
-  list<SubtargetFeature> CWFAdditionalFeatures = [FeatureCLDEMOTE,
+  list<SubtargetFeature> CWFAdditionalFeatures = [FeaturePREFETCHI,
+                                                  FeatureAVXVNNIINT16,
+                                                  FeatureSHA512,
+                                                  FeatureSM3,
+                                                  FeatureSM4,
                                                   FeatureUSERMSR];
   list<SubtargetFeature> CWFFeatures =
-    !listconcat(PTLFeatures, CWFAdditionalFeatures);
+    !listconcat(SRFFeatures, CWFAdditionalFeatures);
 
   // Knights Landing
   list<SubtargetFeature> KNLFeatures = [FeatureX87,
diff --git a/llvm/lib/TargetParser/X86TargetParser.cpp b/llvm/lib/TargetParser/X86TargetParser.cpp
@@ -178,7 +178,8 @@ constexpr FeatureBitset FeaturesArrowlakeS =
 constexpr FeatureBitset FeaturesPantherlake =
     FeaturesArrowlakeS | FeaturePREFETCHI;
 constexpr FeatureBitset FeaturesClearwaterforest =
-    FeaturesPantherlake | FeatureUSERMSR | FeatureCLDEMOTE;
+    FeaturesSierraforest | FeatureAVXVNNIINT16 | FeatureSHA512 | FeatureSM3 |
+    FeatureSM4 | FeaturePREFETCHI | FeatureUSERMSR;
 
 // Geode Processor.
 constexpr FeatureBitset FeaturesGeode =
