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llvm-mirror/lib/Target/PowerPC/PPCInstrBuilder.h
Chandler Carruth ae65e281f3 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00

43 lines
1.5 KiB
C++

//===-- PPCInstrBuilder.h - Aides for building PPC insts --------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file exposes functions that may be used with BuildMI from the
// MachineInstrBuilder.h file to simplify generating frame and constant pool
// references.
//
// For reference, the order of operands for memory references is:
// (Operand), Dest Reg, Base Reg, and either Reg Index or Immediate
// Displacement.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_POWERPC_PPCINSTRBUILDER_H
#define LLVM_LIB_TARGET_POWERPC_PPCINSTRBUILDER_H
#include "llvm/CodeGen/MachineInstrBuilder.h"
namespace llvm {
/// addFrameReference - This function is used to add a reference to the base of
/// an abstract object on the stack frame of the current function. This
/// reference has base register as the FrameIndex offset until it is resolved.
/// This allows a constant offset to be specified as well...
///
static inline const MachineInstrBuilder&
addFrameReference(const MachineInstrBuilder &MIB, int FI, int Offset = 0,
bool mem = true) {
if (mem)
return MIB.addImm(Offset).addFrameIndex(FI);
else
return MIB.addFrameIndex(FI).addImm(Offset);
}
} // End llvm namespace
#endif