File: disable-sse2-old-x86.diff

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llvm-toolchain-21 1%3A21.1.0-1
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Index: llvm-toolchain-snapshot_21~++20250422120724+c1940cd0deef/llvm/lib/TargetParser/X86TargetParser.cpp
===================================================================
--- llvm-toolchain-snapshot_21~++20250422120724+c1940cd0deef.orig/llvm/lib/TargetParser/X86TargetParser.cpp
+++ llvm-toolchain-snapshot_21~++20250422120724+c1940cd0deef/llvm/lib/TargetParser/X86TargetParser.cpp
@@ -59,7 +59,7 @@ constexpr FeatureBitset FeaturesPentium2
 constexpr FeatureBitset FeaturesPentium3 = FeaturesPentium2 | FeatureSSE;
 
 // Pentium 4 CPUs
-constexpr FeatureBitset FeaturesPentium4 = FeaturesPentium3 | FeatureSSE2;
+constexpr FeatureBitset FeaturesPentium4 = FeaturesPentium3;
 constexpr FeatureBitset FeaturesPrescott = FeaturesPentium4 | FeatureSSE3;
 constexpr FeatureBitset FeaturesNocona =
     FeaturesPrescott | Feature64BIT | FeatureCMPXCHG16B;