Extracts an TargetX86Base target which will be used as the common X86{32,64} implementation.

src/IceTargetLoweringX8664.h

Index: src/IceTargetLoweringX8664.h
diff --git a/src/IceTargetLoweringX8664.h b/src/IceTargetLoweringX8664.h
new file mode 100644
index 0000000000000000000000000000000000000000..90daf8c23f7d22957e2038f564b705410b4e9dfe
--- /dev/null
+++ b/src/IceTargetLoweringX8664.h
@@ -0,0 +1,58 @@
+//===- subzero/src/IceTargetLoweringX8664.h - x86-64 lowering ---*- C++ -*-===//
+//
+//                        The Subzero Code Generator
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the TargetLoweringX8664 class, which
+// implements the TargetLowering interface for the x86-64
+// architecture.
+//
+//===----------------------------------------------------------------------===//
+#ifndef SUBZERO_SRC_ICETARGETLOWERINGX8664_H
+#define SUBZERO_SRC_ICETARGETLOWERINGX8664_H
+
+#include "IceDefs.h"
+#include "IceTargetLowering.h"
+
+namespace Ice {
+
+class TargetX8664 : public TargetLowering {
+  TargetX8664() = delete;
+  TargetX8664(const TargetX8664 &) = delete;
+  TargetX8664 &operator=(const TargetX8664 &) = delete;
+
+public:
+  static TargetX8664 *create(Cfg *) {
+    llvm::report_fatal_error("Not yet implemented");
+  }
+};
+
+class TargetDataX8664 : public TargetDataLowering {
+  TargetDataX8664() = delete;
+  TargetDataX8664(const TargetDataX8664 &) = delete;
+  TargetDataX8664 &operator=(const TargetDataX8664 &) = delete;
+
+public:
+  static std::unique_ptr<TargetDataLowering> create(GlobalContext *Ctx) {
+    llvm::report_fatal_error("Not yet implemented");
+  }
+};
+
+class TargetHeaderX8664 : public TargetHeaderLowering {
+  TargetHeaderX8664() = delete;
+  TargetHeaderX8664(const TargetHeaderX8664 &) = delete;
+  TargetHeaderX8664 &operator=(const TargetHeaderX8664 &) = delete;
+
+public:
+  static std::unique_ptr<TargetHeaderLowering> create(GlobalContext *Ctx) {
+    llvm::report_fatal_error("Not yet implemented");
+  }
+};
+
+} // end of namespace Ice
+
+#endif // SUBZERO_SRC_ICETARGETLOWERINGX8664_H