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//===- MIRYamlMapping.cpp - Describe mapping between MIR and YAML ---------===//
//
// 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 implements the mapping between various MIR data structures and
// their corresponding YAML representation.
//
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/MIRYamlMapping.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/FormatVariadic.h"
using namespace llvm;
using namespace llvm::yaml;
FrameIndex::FrameIndex(int FI, const llvm::MachineFrameInfo &MFI) {
IsFixed = MFI.isFixedObjectIndex(FI);
if (IsFixed)
FI -= MFI.getObjectIndexBegin();
this->FI = FI;
}
// Returns the value and if the frame index is fixed or not.
Expected<int> FrameIndex::getFI(const llvm::MachineFrameInfo &MFI) const {
int FI = this->FI;
if (IsFixed) {
if (unsigned(FI) >= MFI.getNumFixedObjects())
return make_error<StringError>(
formatv("invalid fixed frame index {0}", FI).str(),
inconvertibleErrorCode());
FI += MFI.getObjectIndexBegin();
}
if (unsigned(FI + MFI.getNumFixedObjects()) >= MFI.getNumObjects())
return make_error<StringError>(formatv("invalid frame index {0}", FI).str(),
inconvertibleErrorCode());
return FI;
}
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