| //===-- llvm/CodeGen/GlobalISel/LowLevelType.cpp --------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| /// \file This file implements the more header-heavy bits of the LLT class to |
| /// avoid polluting users' namespaces. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/CodeGen/LowLevelType.h" |
| #include "llvm/IR/DataLayout.h" |
| #include "llvm/IR/DerivedTypes.h" |
| #include "llvm/Support/raw_ostream.h" |
| using namespace llvm; |
| |
| LLT::LLT(Type &Ty, const DataLayout &DL) { |
| if (auto VTy = dyn_cast<VectorType>(&Ty)) { |
| SizeInBits = VTy->getElementType()->getPrimitiveSizeInBits(); |
| ElementsOrAddrSpace = VTy->getNumElements(); |
| Kind = ElementsOrAddrSpace == 1 ? Scalar : Vector; |
| } else if (auto PTy = dyn_cast<PointerType>(&Ty)) { |
| Kind = Pointer; |
| SizeInBits = DL.getTypeSizeInBits(&Ty); |
| ElementsOrAddrSpace = PTy->getAddressSpace(); |
| } else if (Ty.isSized()) { |
| // Aggregates are no different from real scalars as far as GlobalISel is |
| // concerned. |
| Kind = Scalar; |
| SizeInBits = DL.getTypeSizeInBits(&Ty); |
| ElementsOrAddrSpace = 1; |
| assert(SizeInBits != 0 && "invalid zero-sized type"); |
| } else { |
| Kind = Invalid; |
| SizeInBits = ElementsOrAddrSpace = 0; |
| } |
| } |
| |
| LLT::LLT(MVT VT) { |
| if (VT.isVector()) { |
| SizeInBits = VT.getVectorElementType().getSizeInBits(); |
| ElementsOrAddrSpace = VT.getVectorNumElements(); |
| Kind = ElementsOrAddrSpace == 1 ? Scalar : Vector; |
| } else if (VT.isValid()) { |
| // Aggregates are no different from real scalars as far as GlobalISel is |
| // concerned. |
| Kind = Scalar; |
| SizeInBits = VT.getSizeInBits(); |
| ElementsOrAddrSpace = 1; |
| assert(SizeInBits != 0 && "invalid zero-sized type"); |
| } else { |
| Kind = Invalid; |
| SizeInBits = ElementsOrAddrSpace = 0; |
| } |
| } |
| |
| void LLT::print(raw_ostream &OS) const { |
| if (isVector()) |
| OS << "<" << ElementsOrAddrSpace << " x s" << SizeInBits << ">"; |
| else if (isPointer()) |
| OS << "p" << getAddressSpace(); |
| else if (isValid()) { |
| assert(isScalar() && "unexpected type"); |
| OS << "s" << getScalarSizeInBits(); |
| } else |
| llvm_unreachable("trying to print an invalid type"); |
| } |