initial implementation of intrinsic parsing

llvm-svn: 26495

1 files changed, 42 insertions, 0 deletions

diff --git a/llvm/utils/TableGen/CodeGenIntrinsics.h b/llvm/utils/TableGen/CodeGenIntrinsics.h
new file mode 100644
index 0000000..7152996
--- /dev/null
+++ b/llvm/utils/TableGen/CodeGenIntrinsics.h
@@ -0,0 +1,42 @@
+//===- CodeGenIntrinsic.h - Intrinsic Class Wrapper ------------*- C++ -*--===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines a wrapper class for the 'Intrinsic' TableGen class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef CODEGEN_INTRINSIC_H
+#define CODEGEN_INTRINSIC_H
+
+#include <string>
+#include <vector>
+
+namespace llvm {
+  class Record;
+  class RecordKeeper;
+
+  struct CodeGenIntrinsic {
+    Record *TheDef;            // The actual record defining this instruction.
+    std::string Name;          // The name of the LLVM function "llvm.bswap.i32"
+    std::string EnumName;      // The name of the enum "bswap_i32"
+
+    // Memory mod/ref behavior of this intrinsic.
+    enum {
+      NoMem, ReadArgMem, ReadMem, WriteArgMem, WriteMem
+    } ModRef;
+
+    CodeGenIntrinsic(Record *R);
+  };
+
+  /// LoadIntrinsics - Read all of the intrinsics defined in the specified
+  /// .td file.
+  std::vector<CodeGenIntrinsic> LoadIntrinsics(const RecordKeeper &RC);
+}
+
+#endif