Initial checkin of Instruction emitter, which just produces enum values so far

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7515 91177308-0d34-0410-b5e6-96231b3b80d8

utils/TableGen/InstrInfoEmitter.h

@@ -0,0 +1,26 @@
+//===- InstrInfoEmitter.h - Generate a Instruction Set Desc. ----*- C++ -*-===//
+//
+// This tablegen backend is responsible for emitting a description of the target
+// instruction set for the code generator.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef INSTRINFO_EMITTER_H
+#define INSTRINFO_EMITTER_H
+
+#include <iosfwd>
+class RecordKeeper;
+
+class InstrInfoEmitter {
+  RecordKeeper &Records;
+public:
+  InstrInfoEmitter(RecordKeeper &R) : Records(R) {}
+  
+  // run - Output the instruction set description, returning true on failure.
+  void run(std::ostream &o);
+
+  // runEnums - Print out enum values for all of the instructions.
+  void runEnums(std::ostream &o);
+};
+
+#endif