44 lines
1.6 KiB
C++
44 lines
1.6 KiB
C++
//===- MIRYamlMapping.cpp - Describe mapping between MIR and YAML ---------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the mapping between various MIR data structures and
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// their corresponding YAML representation.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/CodeGen/MIRYamlMapping.h"
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#include "llvm/CodeGen/MachineFrameInfo.h"
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#include "llvm/Support/Error.h"
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#include "llvm/Support/FormatVariadic.h"
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using namespace llvm;
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using namespace llvm::yaml;
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FrameIndex::FrameIndex(int FI, const llvm::MachineFrameInfo &MFI) {
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IsFixed = MFI.isFixedObjectIndex(FI);
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if (IsFixed)
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FI -= MFI.getObjectIndexBegin();
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this->FI = FI;
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}
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// Returns the value and if the frame index is fixed or not.
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Expected<int> FrameIndex::getFI(const llvm::MachineFrameInfo &MFI) const {
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int FI = this->FI;
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if (IsFixed) {
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if (unsigned(FI) >= MFI.getNumFixedObjects())
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return make_error<StringError>(
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formatv("invalid fixed frame index {0}", FI).str(),
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inconvertibleErrorCode());
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FI += MFI.getObjectIndexBegin();
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}
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if (unsigned(FI + MFI.getNumFixedObjects()) >= MFI.getNumObjects())
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return make_error<StringError>(formatv("invalid frame index {0}", FI).str(),
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inconvertibleErrorCode());
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return FI;
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}
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