[llvm] [X86] Enable APX and AVX10.2 on NVL (PR #168061)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-x86

Author: Mikołaj Piróg (mikolaj-pirog)

<details>
<summary>Changes</summary>

Per Intel Architecture Instruction Set Extensions Programming Reference rev. 60 (https://cdrdv2.intel.com/v1/dl/getContent/671368), table 1-2, NVL supports APX and AVX10.2

---
Full diff: https://github.com/llvm/llvm-project/pull/168061.diff


2 Files Affected:

- (modified) llvm/lib/Target/X86/X86.td (+11-1) 
- (modified) llvm/lib/TargetParser/X86TargetParser.cpp (+3-1) 


``````````diff
diff --git a/llvm/lib/Target/X86/X86.td b/llvm/lib/Target/X86/X86.td
index 9e291a6ae431f..27ec052cfda40 100644
--- a/llvm/lib/Target/X86/X86.td
+++ b/llvm/lib/Target/X86/X86.td
@@ -1334,8 +1334,18 @@ def ProcessorFeatures {
     !listremove(ARLSFeatures, [FeatureWIDEKL]);
 
   // Novalake
+  list<SubtargetFeature> NVLAdditionalFeatures = [FeatureAVX10_2,
+                                                  FeatureMOVRS,
+                                                  FeatureEGPR,
+                                                  FeaturePush2Pop2,
+                                                  FeaturePPX,
+                                                  FeatureNF,
+                                                  FeatureNDD,
+                                                  FeatureZU,
+                                                  FeatureCCMP,
+                                                  FeaturePREFETCHI];
   list<SubtargetFeature> NVLFeatures =
-      !listconcat(PTLFeatures, [FeaturePREFETCHI]);
+      !listconcat(PTLFeatures, NVLAdditionalFeatures);
 
   // Clearwaterforest
   list<SubtargetFeature> CWFAdditionalFeatures = [FeaturePREFETCHI,
diff --git a/llvm/lib/TargetParser/X86TargetParser.cpp b/llvm/lib/TargetParser/X86TargetParser.cpp
index 37e8ad986aa55..ad0d7b38ae1b3 100644
--- a/llvm/lib/TargetParser/X86TargetParser.cpp
+++ b/llvm/lib/TargetParser/X86TargetParser.cpp
@@ -176,7 +176,9 @@ constexpr FeatureBitset FeaturesArrowlakeS =
 constexpr FeatureBitset FeaturesPantherlake =
     (FeaturesArrowlakeS ^ FeatureWIDEKL);
 constexpr FeatureBitset FeaturesNovalake =
-    FeaturesPantherlake | FeaturePREFETCHI;
+    FeaturesPantherlake | FeaturePREFETCHI | FeatureAVX10_2 | FeatureMOVRS |
+    FeatureEGPR | FeatureZU | FeatureCCMP | FeaturePush2Pop2 | FeaturePPX |
+    FeatureNDD | FeatureNF;
 constexpr FeatureBitset FeaturesClearwaterforest =
     (FeaturesSierraforest ^ FeatureWIDEKL) | FeatureAVXVNNIINT16 |
     FeatureSHA512 | FeatureSM3 | FeatureSM4 | FeaturePREFETCHI | FeatureUSERMSR;

``````````

</details>


https://github.com/llvm/llvm-project/pull/168061