LLVM  9.0.0svn
PPCInstrBuilder.h
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1 //===-- PPCInstrBuilder.h - Aides for building PPC insts --------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file exposes functions that may be used with BuildMI from the
10 // MachineInstrBuilder.h file to simplify generating frame and constant pool
11 // references.
12 //
13 // For reference, the order of operands for memory references is:
14 // (Operand), Dest Reg, Base Reg, and either Reg Index or Immediate
15 // Displacement.
16 //
17 //===----------------------------------------------------------------------===//
18 
19 #ifndef LLVM_LIB_TARGET_POWERPC_PPCINSTRBUILDER_H
20 #define LLVM_LIB_TARGET_POWERPC_PPCINSTRBUILDER_H
21 
23 
24 namespace llvm {
25 
26 /// addFrameReference - This function is used to add a reference to the base of
27 /// an abstract object on the stack frame of the current function. This
28 /// reference has base register as the FrameIndex offset until it is resolved.
29 /// This allows a constant offset to be specified as well...
30 ///
31 static inline const MachineInstrBuilder&
32 addFrameReference(const MachineInstrBuilder &MIB, int FI, int Offset = 0,
33  bool mem = true) {
34  if (mem)
35  return MIB.addImm(Offset).addFrameIndex(FI);
36  else
37  return MIB.addFrameIndex(FI).addImm(Offset);
38 }
39 
40 } // End llvm namespace
41 
42 #endif
This class represents lattice values for constants.
Definition: AllocatorList.h:23
const MachineInstrBuilder & addFrameIndex(int Idx) const
static const MachineInstrBuilder & addFrameReference(const MachineInstrBuilder &MIB, int FI, int Offset=0, bool mem=true)
addFrameReference - This function is used to add a reference to the base of an abstract object on the...
const MachineInstrBuilder & addImm(int64_t Val) const
Add a new immediate operand.