SparcV8 skeleton

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11828 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 48 insertions, 0 deletions

diff --git a/lib/Target/Sparc/SparcInstrInfo.h b/lib/Target/Sparc/SparcInstrInfo.h
new file mode 100644
index 0000000000..b76ab035ab
--- /dev/null
+++ b/lib/Target/Sparc/SparcInstrInfo.h
@@ -0,0 +1,48 @@
+//===- SparcV8InstrInfo.h - SparcV8 Instruction Information -----*- 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 contains the SparcV8 implementation of the TargetInstrInfo class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SPARCV8INSTRUCTIONINFO_H
+#define SPARCV8INSTRUCTIONINFO_H
+
+#include "llvm/Target/TargetInstrInfo.h"
+#include "SparcV8RegisterInfo.h"
+
+namespace llvm {
+
+class SparcV8InstrInfo : public TargetInstrInfo {
+  const SparcV8RegisterInfo RI;
+public:
+  SparcV8InstrInfo();
+
+  /// getRegisterInfo - TargetInstrInfo is a superset of MRegister info.  As
+  /// such, whenever a client has an instance of instruction info, it should
+  /// always be able to get register info as well (through this method).
+  ///
+  virtual const MRegisterInfo &getRegisterInfo() const { return RI; }
+
+  /// createNOPinstr - returns the target's implementation of NOP, which is
+  /// usually a pseudo-instruction, implemented by a degenerate version of
+  /// another instruction.
+  ///
+  MachineInstr* createNOPinstr() const;
+
+  /// isNOPinstr - not having a special NOP opcode, we need to know if a given
+  /// instruction is interpreted as an `official' NOP instr, i.e., there may be
+  /// more than one way to `do nothing' but only one canonical way to slack off.
+  ///
+  bool isNOPinstr(const MachineInstr &MI) const;
+};
+
+}
+
+#endif