Remove PREFETCHI from PTL

Author: mikolaj-pirog

clang/test/Preprocessor/predefined-arch-macros.c

@@ -2568,7 +2568,7 @@
 // CHECK_ARL_M32: #define __POPCNT__ 1
 // CHECK_ARL_M32-NOT: #define __PREFETCHI__ 1
 // CHECK_ARLS_M32-NOT: #define __PREFETCHI__ 1
-// CHECK_PTL_M32: #define __PREFETCHI__ 1
+// CHECK_CWF_M32: #define __PREFETCHI__ 1
 // CHECK_ARL_M32: #define __PRFCHW__ 1
 // CHECK_ARL_M32: #define __PTWRITE__ 1
 // CHECK_ARL_M32-NOT: #define __RAOINT__ 1
@@ -2673,7 +2673,7 @@
 // CHECK_ARL_M64: #define __POPCNT__ 1
 // CHECK_ARL_M64-NOT: #define __PREFETCHI__ 1
 // CHECK_ARLS_M64-NOT: #define __PREFETCHI__ 1
-// CHECK_PTL_M64: #define __PREFETCHI__ 1
+// CHECK_CWF_M64: #define __PREFETCHI__ 1
 // CHECK_ARL_M64: #define __PRFCHW__ 1
 // CHECK_ARL_M64: #define __PTWRITE__ 1
 // CHECK_ARL_M64-NOT: #define __RAOINT__ 1

llvm/lib/Target/X86/X86.td

@@ -1335,9 +1335,8 @@ def ProcessorFeatures {
     !listconcat(ARLFeatures, ARLSAdditionalFeatures);
 
   // Pantherlake
-  list<SubtargetFeature> PTLAdditionalFeatures = [FeaturePREFETCHI];
   list<SubtargetFeature> PTLFeatures =
-    !listremove(!listconcat(ARLSFeatures, PTLAdditionalFeatures), [FeatureWIDEKL]);
+    !listremove(ARLSFeatures, [FeatureWIDEKL]);
 
 
   // Clearwaterforest

llvm/lib/TargetParser/X86TargetParser.cpp

@@ -175,7 +175,7 @@ constexpr FeatureBitset FeaturesArrowlakeS =
     FeaturesArrowlake | FeatureAVXVNNIINT16 | FeatureSHA512 | FeatureSM3 |
     FeatureSM4;
 constexpr FeatureBitset FeaturesPantherlake =
-    (FeaturesArrowlakeS ^ FeatureWIDEKL) | FeaturePREFETCHI;
+    (FeaturesArrowlakeS ^ FeatureWIDEKL);
 constexpr FeatureBitset FeaturesClearwaterforest =
     (FeaturesSierraforest ^ FeatureWIDEKL) | FeatureAVXVNNIINT16 |
     FeatureSHA512 | FeatureSM3 | FeatureSM4 | FeaturePREFETCHI | FeatureUSERMSR;