1/*
2 * Copyright 2016, The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef RS2SPIRV_RS_ALLOCATION_UTILS_H
18#define RS2SPIRV_RS_ALLOCATION_UTILS_H
19
20#include "llvm/ADT/Optional.h"
21#include "llvm/ADT/SmallVector.h"
22
23#include <string>
24
25namespace llvm {
26class CallInst;
27class GlobalVariable;
28class Module;
29class Type;
30} // namespace llvm
31
32namespace rs2spirv {
33
34struct RSAllocationInfo {
35  std::string VarName;
36  llvm::Optional<std::string> RSElementType;
37  llvm::GlobalVariable *GlobalVar;
38  // Assigned unique identifier for this allocation;
39  // not the slot #.
40  // Represents the index of this allocation's metadata
41  // in the global allocation metadata Vulkan buffer
42  int ID;
43  bool hasID(void) const { return ID >= 0; }
44  void assignID(int no) { ID = no; }
45};
46
47enum class RSAllocAccessKind { GEA, SEA, DIMX };
48
49struct RSAllocationCallInfo {
50  RSAllocationInfo &RSAlloc;
51  llvm::CallInst *FCall;
52  RSAllocAccessKind Kind;
53  std::string RSElementTy;
54};
55
56bool isRSAllocation(const llvm::GlobalVariable &GV);
57bool getRSAllocationInfo(llvm::Module &M,
58                         llvm::SmallVectorImpl<RSAllocationInfo> &Allocs);
59bool getRSAllocAccesses(llvm::SmallVectorImpl<RSAllocationInfo> &Allocs,
60                        llvm::SmallVectorImpl<RSAllocationCallInfo> &Calls);
61bool solidifyRSAllocAccess(llvm::Module &M, RSAllocationCallInfo CallInfo);
62
63} // namespace rs2spirv
64
65#endif
66