llvm-project/llvm/lib/Target/ARC/ARCMachineFunctionInfo.h
Guillaume Chatelet 48904e9452 [Alignment] Use llvm::Align in MachineFunction and TargetLowering - fixes mir parsing
Summary:
This catches malformed mir files which specify alignment as log2 instead of pow2.
See https://reviews.llvm.org/D65945 for reference,

This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790

Reviewers: courbet

Subscribers: MatzeB, qcolombet, dschuff, arsenm, sdardis, nemanjai, jvesely, nhaehnle, hiraditya, kbarton, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, jsji, Petar.Avramovic, asbirlea, s.egerton, pzheng, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D67433

llvm-svn: 371608
2019-09-11 11:16:48 +00:00

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1.9 KiB
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//===- ARCMachineFunctionInfo.h - ARC machine function info -----*- 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 declares ARC-specific per-machine-function information.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_ARC_ARCMACHINEFUNCTIONINFO_H
#define LLVM_LIB_TARGET_ARC_ARCMACHINEFUNCTIONINFO_H
#include "llvm/CodeGen/MachineFunction.h"
#include <vector>
namespace llvm {
/// ARCFunctionInfo - This class is derived from MachineFunction private
/// ARC target-specific information for each MachineFunction.
class ARCFunctionInfo : public MachineFunctionInfo {
virtual void anchor();
bool ReturnStackOffsetSet;
int VarArgsFrameIndex;
unsigned ReturnStackOffset;
public:
ARCFunctionInfo()
: ReturnStackOffsetSet(false), VarArgsFrameIndex(0),
ReturnStackOffset(-1U), MaxCallStackReq(0) {}
explicit ARCFunctionInfo(MachineFunction &MF)
: ReturnStackOffsetSet(false), VarArgsFrameIndex(0),
ReturnStackOffset(-1U), MaxCallStackReq(0) {
// Functions are 4-byte aligned.
MF.setAlignment(llvm::Align(4));
}
~ARCFunctionInfo() {}
void setVarArgsFrameIndex(int off) { VarArgsFrameIndex = off; }
int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
void setReturnStackOffset(unsigned value) {
assert(!ReturnStackOffsetSet && "Return stack offset set twice");
ReturnStackOffset = value;
ReturnStackOffsetSet = true;
}
unsigned getReturnStackOffset() const {
assert(ReturnStackOffsetSet && "Return stack offset not set");
return ReturnStackOffset;
}
unsigned MaxCallStackReq;
};
} // end namespace llvm
#endif // LLVM_LIB_TARGET_ARC_ARCMACHINEFUNCTIONINFO_H