[clang] [llvm] [HLSL] Create HLSL legalization passes (PR #123811)

[Steven Perron via llvm-commits]

================
@@ -61,7 +61,7 @@ unsigned RemoveDupes(unsigned Buf[MAX], unsigned size) {
 }
 
 
-RWBuffer<unsigned> Indices;
+RWBuffer<unsigned> Indices : register(u0);
----------------
s-perron wrote:

Resources without explicit register assignments are not supported yet. If we do not do this then we end up with a handle that is zero initialized, which causes problems.

https://github.com/llvm/llvm-project/pull/123811