[clang] [llvm] Add cross builtins and cross HLSL function to DirectX and SPIR-V backend (PR #109180)

[Farzon Lotfi via cfe-commits]

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@@ -0,0 +1,57 @@
+; RUN: opt -S  -dxil-intrinsic-expansion  < %s | FileCheck %s --check-prefix=CHECK
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farzonl wrote:

typicall we do `--check-prefix` if one run is different than the other.  in this case they are the same. My recommendation is to drop one of these runs  and remove the check prefix. 

https://github.com/llvm/llvm-project/pull/109180