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

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

@@ -0,0 +1,54 @@
+/**
+ ******************************************************************************
+ * 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_CONTEXT_PROMOTION_PASS_H_
+#define XENIA_COMPILER_PASSES_CONTEXT_PROMOTION_PASS_H_
+
+#include "xenia/cpu/compiler/compiler_pass.h"
+
+#if XE_COMPILER_MSVC
+#pragma warning(push)
+#pragma warning(disable : 4244)
+#pragma warning(disable : 4267)
+#include <llvm/ADT/BitVector.h>
+#pragma warning(pop)
+#else
+#include <cmath>
+#include <llvm/ADT/BitVector.h>
+#endif  // XE_COMPILER_MSVC
+
+namespace xe {
+namespace cpu {
+namespace compiler {
+namespace passes {
+
+class ContextPromotionPass : public CompilerPass {
+ public:
+  ContextPromotionPass();
+  virtual ~ContextPromotionPass() override;
+
+  int Initialize(Compiler* compiler) override;
+
+  int Run(hir::HIRBuilder* builder) override;
+
+ private:
+  void PromoteBlock(hir::Block* block);
+  void RemoveDeadStoresBlock(hir::Block* block);
+
+ private:
+  std::vector<hir::Value*> context_values_;
+  llvm::BitVector context_validity_;
+};
+
+}  // namespace passes
+}  // namespace compiler
+}  // namespace cpu
+}  // namespace xe
+
+#endif  // XENIA_COMPILER_PASSES_CONTEXT_PROMOTION_PASS_H_