1 files changed, 48 insertions, 0 deletions
diff --git a/contrib/llvm/utils/TableGen/InstrEnumEmitter.cpp b/contrib/llvm/utils/TableGen/InstrEnumEmitter.cpp
new file mode 100644
index 0000000..aa59689
--- /dev/null
+++ b/contrib/llvm/utils/TableGen/InstrEnumEmitter.cpp
@@ -0,0 +1,48 @@
+//===- InstrEnumEmitter.cpp - Generate Instruction Set Enums --------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This tablegen backend is responsible for emitting enums for each machine
+// instruction.
+//
+//===----------------------------------------------------------------------===//
+
+#include "InstrEnumEmitter.h"
+#include "CodeGenTarget.h"
+#include "Record.h"
+#include <cstdio>
+using namespace llvm;
+
+// runEnums - Print out enum values for all of the instructions.
+void InstrEnumEmitter::run(raw_ostream &OS) {
+  EmitSourceFileHeader("Target Instruction Enum Values", OS);
+  OS << "namespace llvm {\n\n";
+
+  CodeGenTarget Target(Records);
+
+  // We must emit the PHI opcode first...
+  std::string Namespace = Target.getInstNamespace();
+  
+  if (Namespace.empty()) {
+    fprintf(stderr, "No instructions defined!\n");
+    exit(1);
+  }
+
+  const std::vector<const CodeGenInstruction*> &NumberedInstructions =
+    Target.getInstructionsByEnumValue();
+
+  OS << "namespace " << Namespace << " {\n";
+  OS << "  enum {\n";
+  for (unsigned i = 0, e = NumberedInstructions.size(); i != e; ++i) {
+    OS << "    " << NumberedInstructions[i]->TheDef->getName()
+       << "\t= " << i << ",\n";
+  }
+  OS << "    INSTRUCTION_LIST_END = " << NumberedInstructions.size() << "\n";
+  OS << "  };\n}\n";
+  OS << "} // End llvm namespace \n";
+}