[clang] [llvm] Add normalize builtins and normalize HLSL function to DirectX and SPIR-V backend (PR #102683)

[Farzon Lotfi via cfe-commits]

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+; RUN: not opt -S -dxil-op-lower -mtriple=dxil-pc-shadermodel6.3-library %s 2>&1 | FileCheck %s
+
+; DXIL operation normalize does not support double overload type
+; CHECK: Cannot create Dot2 operation: Invalid overload type
+
+define noundef <2 x double> @test_normalize_double2(<2 x double> noundef %p0) {
+entry:
+  %hlsl.normalize = call <2 x double> @llvm.dx.normalize.v2f32(<2 x double> %p0)
+  ret <2 x double> %hlsl.normalize
+}
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farzonl wrote:

add a new line

https://github.com/llvm/llvm-project/pull/102683