1 | //===-- llvm/CodeGen/PseudoSourceValueManager.h -----------------*- C++ -*-===// |
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 contains the declaration of the PseudoSourceValueManager class. |
10 | // |
11 | //===----------------------------------------------------------------------===// |
12 | |
13 | #ifndef LLVM_CODEGEN_PSEUDOSOURCEVALUEMANAGER_H |
14 | #define LLVM_CODEGEN_PSEUDOSOURCEVALUEMANAGER_H |
15 | |
16 | #include "llvm/ADT/StringMap.h" |
17 | #include "llvm/CodeGen/PseudoSourceValue.h" |
18 | #include "llvm/IR/ValueMap.h" |
19 | #include <map> |
20 | |
21 | namespace llvm { |
22 | |
23 | class GlobalValue; |
24 | class TargetMachine; |
25 | |
26 | /// Manages creation of pseudo source values. |
27 | class PseudoSourceValueManager { |
28 | const TargetMachine &TM; |
29 | const PseudoSourceValue StackPSV, GOTPSV, JumpTablePSV, ConstantPoolPSV; |
30 | std::map<int, std::unique_ptr<FixedStackPseudoSourceValue>> FSValues; |
31 | StringMap<std::unique_ptr<const ExternalSymbolPseudoSourceValue>> |
32 | ExternalCallEntries; |
33 | ValueMap<const GlobalValue *, |
34 | std::unique_ptr<const GlobalValuePseudoSourceValue>> |
35 | GlobalCallEntries; |
36 | |
37 | public: |
38 | PseudoSourceValueManager(const TargetMachine &TM); |
39 | |
40 | /// Return a pseudo source value referencing the area below the stack frame of |
41 | /// a function, e.g., the argument space. |
42 | const PseudoSourceValue *getStack(); |
43 | |
44 | /// Return a pseudo source value referencing the global offset table |
45 | /// (or something the like). |
46 | const PseudoSourceValue *getGOT(); |
47 | |
48 | /// Return a pseudo source value referencing the constant pool. Since constant |
49 | /// pools are constant, this doesn't need to identify a specific constant |
50 | /// pool entry. |
51 | const PseudoSourceValue *getConstantPool(); |
52 | |
53 | /// Return a pseudo source value referencing a jump table. Since jump tables |
54 | /// are constant, this doesn't need to identify a specific jump table. |
55 | const PseudoSourceValue *getJumpTable(); |
56 | |
57 | /// Return a pseudo source value referencing a fixed stack frame entry, |
58 | /// e.g., a spill slot. |
59 | const PseudoSourceValue *getFixedStack(int FI); |
60 | |
61 | const PseudoSourceValue *getGlobalValueCallEntry(const GlobalValue *GV); |
62 | |
63 | const PseudoSourceValue *getExternalSymbolCallEntry(const char *ES); |
64 | }; |
65 | |
66 | } // end namespace llvm |
67 | |
68 | #endif |
69 | |