Initial Mips support, here we go! =)
- Modifications from the last patch included
(issues pointed by Evan Cheng are now fixed).
- Added more MipsI instructions.
- Added more patterns to match branch instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37461 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsInstrInfo.h b/lib/Target/Mips/MipsInstrInfo.h
new file mode 100644
index 0000000..356cf3d
--- /dev/null
+++ b/lib/Target/Mips/MipsInstrInfo.h
@@ -0,0 +1,63 @@
+//===- MipsInstrInfo.h - Mips Instruction Information -----------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by Bruno Cardoso Lopes and is distributed under the
+// University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains the Mips implementation of the TargetInstrInfo class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef MIPSINSTRUCTIONINFO_H
+#define MIPSINSTRUCTIONINFO_H
+
+#include "Mips.h"
+#include "llvm/Target/TargetInstrInfo.h"
+#include "MipsRegisterInfo.h"
+
+namespace llvm {
+
+class MipsInstrInfo : public TargetInstrInfo
+{
+ MipsTargetMachine &TM;
+ const MipsRegisterInfo RI;
+public:
+ MipsInstrInfo(MipsTargetMachine &TM);
+
+ /// 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; }
+
+ /// Return true if the instruction is a register to register move and
+ /// leave the source and dest operands in the passed parameters.
+ ///
+ virtual bool isMoveInstr(const MachineInstr &MI,
+ unsigned &SrcReg, unsigned &DstReg) const;
+
+ /// isLoadFromStackSlot - If the specified machine instruction is a direct
+ /// load from a stack slot, return the virtual or physical register number of
+ /// the destination along with the FrameIndex of the loaded stack slot. If
+ /// not, return 0. This predicate must return 0 if the instruction has
+ /// any side effects other than loading from the stack slot.
+ virtual unsigned isLoadFromStackSlot(MachineInstr *MI, int &FrameIndex) const;
+
+ /// isStoreToStackSlot - If the specified machine instruction is a direct
+ /// store to a stack slot, return the virtual or physical register number of
+ /// the source reg along with the FrameIndex of the loaded stack slot. If
+ /// not, return 0. This predicate must return 0 if the instruction has
+ /// any side effects other than storing to the stack slot.
+ virtual unsigned isStoreToStackSlot(MachineInstr *MI, int &FrameIndex) const;
+
+ virtual unsigned InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
+ MachineBasicBlock *FBB,
+ const std::vector<MachineOperand> &Cond) const;
+};
+
+}
+
+#endif