| 1 | //===- MIRYamlMapping.cpp - Describe mapping between MIR and YAML ---------===// |
|---|---|
| 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 implements the mapping between various MIR data structures and |
| 10 | // their corresponding YAML representation. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #include "llvm/CodeGen/MIRYamlMapping.h" |
| 15 | #include "llvm/CodeGen/MachineFrameInfo.h" |
| 16 | #include "llvm/Support/Error.h" |
| 17 | #include "llvm/Support/FormatVariadic.h" |
| 18 | |
| 19 | using namespace llvm; |
| 20 | using namespace llvm::yaml; |
| 21 | |
| 22 | FrameIndex::FrameIndex(int FI, const llvm::MachineFrameInfo &MFI) { |
| 23 | IsFixed = MFI.isFixedObjectIndex(ObjectIdx: FI); |
| 24 | if (IsFixed) |
| 25 | FI -= MFI.getObjectIndexBegin(); |
| 26 | this->FI = FI; |
| 27 | } |
| 28 | |
| 29 | // Returns the value and if the frame index is fixed or not. |
| 30 | Expected<int> FrameIndex::getFI(const llvm::MachineFrameInfo &MFI) const { |
| 31 | int FI = this->FI; |
| 32 | if (IsFixed) { |
| 33 | if (unsigned(FI) >= MFI.getNumFixedObjects()) |
| 34 | return make_error<StringError>( |
| 35 | Args: formatv(Fmt: "invalid fixed frame index {0}", Vals&: FI).str(), |
| 36 | Args: inconvertibleErrorCode()); |
| 37 | FI += MFI.getObjectIndexBegin(); |
| 38 | } |
| 39 | if (unsigned(FI + MFI.getNumFixedObjects()) >= MFI.getNumObjects()) |
| 40 | return make_error<StringError>(Args: formatv(Fmt: "invalid frame index {0}", Vals&: FI).str(), |
| 41 | Args: inconvertibleErrorCode()); |
| 42 | return FI; |
| 43 | } |
| 44 |