[llvm] [DirectX] Data Scalarization of Vectors in Global Scope (PR #110029)

[Justin Bogner via llvm-commits]

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@@ -0,0 +1,35 @@
+//===- DXILDataScalarization.h - Prepare LLVM Module for DXIL Data
+// Legalization----===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===------------------------------------------------------------------------------===//
+#ifndef LLVM_TARGET_DIRECTX_DXILDATASCALARIZATION_H
+#define LLVM_TARGET_DIRECTX_DXILDATASCALARIZATION_H
+
+#include "DXILResource.h"
+#include "llvm/IR/PassManager.h"
+#include "llvm/Pass.h"
+
+namespace llvm {
+
+/// A pass that transforms Vectors to Arrays
+class DXILDataScalarization : public PassInfoMixin<DXILDataScalarization> {
+public:
+  PreservedAnalyses run(Module &M, ModuleAnalysisManager &);
+};
+
+class DXILDataScalarizationLegacy : public ModulePass {
+
+public:
+  bool runOnModule(Module &M) override;
+  DXILDataScalarizationLegacy() : ModulePass(ID) {}
+
+  void getAnalysisUsage(AnalysisUsage &AU) const override;
+  static char ID; // Pass identification.
+};
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bogner wrote:

The legacy pass doesn't really need to be defined in the header - the initialize and create functions are the only interface to it and they're forward declared elsewhere anyway.

https://github.com/llvm/llvm-project/pull/110029