1//===-- PPCInstrBuilder.h - Aides for building PPC insts --------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file exposes functions that may be used with BuildMI from the
11// MachineInstrBuilder.h file to simplify generating frame and constant pool
12// references.
13//
14// For reference, the order of operands for memory references is:
15// (Operand), Dest Reg, Base Reg, and either Reg Index or Immediate
16// Displacement.
17//
18//===----------------------------------------------------------------------===//
19
20#ifndef LLVM_LIB_TARGET_POWERPC_PPCINSTRBUILDER_H
21#define LLVM_LIB_TARGET_POWERPC_PPCINSTRBUILDER_H
22
23#include "llvm/CodeGen/MachineInstrBuilder.h"
24
25namespace llvm {
26
27/// addFrameReference - This function is used to add a reference to the base of
28/// an abstract object on the stack frame of the current function.  This
29/// reference has base register as the FrameIndex offset until it is resolved.
30/// This allows a constant offset to be specified as well...
31///
32static inline const MachineInstrBuilder&
33addFrameReference(const MachineInstrBuilder &MIB, int FI, int Offset = 0,
34                  bool mem = true) {
35  if (mem)
36    return MIB.addImm(Offset).addFrameIndex(FI);
37  else
38    return MIB.addFrameIndex(FI).addImm(Offset);
39}
40
41} // End llvm namespace
42
43#endif
44