[clang] [llvm] [HLSL] implementation of lerp intrinsic (PR #83077)

[Xiang Li via cfe-commits]

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@@ -24,4 +24,9 @@ def int_dx_dot :
     Intrinsic<[LLVMVectorElementType<0>], 
     [llvm_anyvector_ty, LLVMScalarOrSameVectorWidth<0, LLVMVectorElementType<0>>],
     [IntrNoMem, IntrWillReturn, Commutative] >;
+
+def int_dx_lerp :
+    Intrinsic<[LLVMMatchType<0>], 
+    [llvm_anyvector_ty, LLVMMatchType<0>, LLVMMatchType<0>],
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python3kgae wrote:

Should it be LLVMScalarOrSameVectorWidth<0, LLVMVectorElementType<0>> like dot?

https://github.com/llvm/llvm-project/pull/83077