| 1 | //===- TypedPointerType.cpp - Typed Pointer Type --------------------------===// |
|---|---|
| 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 | // |
| 10 | //===----------------------------------------------------------------------===// |
| 11 | |
| 12 | #include "llvm/IR/TypedPointerType.h" |
| 13 | #include "LLVMContextImpl.h" |
| 14 | |
| 15 | using namespace llvm; |
| 16 | |
| 17 | TypedPointerType *TypedPointerType::get(Type *EltTy, unsigned AddressSpace) { |
| 18 | assert(EltTy && "Can't get a pointer to <null> type!"); |
| 19 | assert(isValidElementType(EltTy) && "Invalid type for pointer element!"); |
| 20 | |
| 21 | LLVMContextImpl *CImpl = EltTy->getContext().pImpl; |
| 22 | |
| 23 | // Since AddressSpace #0 is the common case, we special case it. |
| 24 | TypedPointerType *&Entry = |
| 25 | CImpl->ASTypedPointerTypes[std::make_pair(x&: EltTy, y&: AddressSpace)]; |
| 26 | |
| 27 | if (!Entry) |
| 28 | Entry = new (CImpl->Alloc) TypedPointerType(EltTy, AddressSpace); |
| 29 | return Entry; |
| 30 | } |
| 31 | |
| 32 | TypedPointerType::TypedPointerType(Type *E, unsigned AddrSpace) |
| 33 | : Type(E->getContext(), TypedPointerTyID), PointeeTy(E) { |
| 34 | ContainedTys = &PointeeTy; |
| 35 | NumContainedTys = 1; |
| 36 | setSubclassData(AddrSpace); |
| 37 | } |
| 38 | |
| 39 | bool TypedPointerType::isValidElementType(Type *ElemTy) { |
| 40 | return !ElemTy->isVoidTy() && !ElemTy->isLabelTy() && |
| 41 | !ElemTy->isMetadataTy() && !ElemTy->isTokenTy() && |
| 42 | !ElemTy->isX86_AMXTy(); |
| 43 | } |
| 44 |