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

[Steven Perron via llvm-commits]

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@@ -1164,6 +1166,12 @@ void EmitAssemblyHelper::RunOptimizationPipeline(
       LangOpts.HIPStdParInterposeAlloc)
     MPM.addPass(HipStdParAllocationInterpositionPass());
 
+  if (LangOpts.HLSL) {
+    // HLSL legalization passes
+    MPM.addPass(HLSLFinalizeLinkage());
+    MPM.addPass(GlobalOptPass());
+  }
+
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s-perron wrote:

I placed it here because there is some HIP specific passes above, so it seems like a possible place, but I really don't know. Let me know if there is a better place to run these passes.

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