| //== llvm/CodeGen/LowLevelType.h ------------------------------- -*- 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 |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| /// Implement a low-level type suitable for MachineInstr level instruction |
| /// selection. |
| /// |
| /// This provides the CodeGen aspects of LowLevelType, such as Type conversion. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CODEGEN_LOWLEVELTYPE_H |
| #define LLVM_CODEGEN_LOWLEVELTYPE_H |
| |
| #include "llvm/Support/LowLevelTypeImpl.h" |
| #include "llvm/Support/MachineValueType.h" |
| |
| namespace llvm { |
| |
| class DataLayout; |
| class Type; |
| struct fltSemantics; |
| |
| /// Construct a low-level type based on an LLVM type. |
| LLT getLLTForType(Type &Ty, const DataLayout &DL); |
| |
| /// Get a rough equivalent of an MVT for a given LLT. MVT can't distinguish |
| /// pointers, so these will convert to a plain integer. |
| MVT getMVTForLLT(LLT Ty); |
| |
| /// Get a rough equivalent of an LLT for a given MVT. LLT does not yet support |
| /// scalarable vector types, and will assert if used. |
| LLT getLLTForMVT(MVT Ty); |
| |
| /// Get the appropriate floating point arithmetic semantic based on the bit size |
| /// of the given scalar LLT. |
| const llvm::fltSemantics &getFltSemanticForLLT(LLT Ty); |
| } |
| |
| #endif // LLVM_CODEGEN_LOWLEVELTYPE_H |