Moving alloy/ into xenia/cpu/ to start simplifying things.

src/xenia/cpu/compiler/passes/dead_code_elimination_pass.h

@@ -0,0 +1,38 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2013 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_COMPILER_PASSES_DEAD_CODE_ELIMINATION_PASS_H_
+#define XENIA_COMPILER_PASSES_DEAD_CODE_ELIMINATION_PASS_H_
+
+#include "xenia/cpu/compiler/compiler_pass.h"
+
+namespace xe {
+namespace cpu {
+namespace compiler {
+namespace passes {
+
+class DeadCodeEliminationPass : public CompilerPass {
+ public:
+  DeadCodeEliminationPass();
+  ~DeadCodeEliminationPass() override;
+
+  int Run(hir::HIRBuilder* builder) override;
+
+ private:
+  void MakeNopRecursive(hir::Instr* i);
+  void ReplaceAssignment(hir::Instr* i);
+  bool CheckLocalUse(hir::Instr* i);
+};
+
+}  // namespace passes
+}  // namespace compiler
+}  // namespace cpu
+}  // namespace xe
+
+#endif  // XENIA_COMPILER_PASSES_DEAD_CODE_ELIMINATION_PASS_H_