/Users/buildslave/jenkins/sharedspace/clang-stage2-coverage-R@2/llvm/lib/Target/ARM/ARMTargetMachine.h
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1 | | //===-- ARMTargetMachine.h - Define TargetMachine for ARM -------*- C++ -*-===// |
2 | | // |
3 | | // The LLVM Compiler Infrastructure |
4 | | // |
5 | | // This file is distributed under the University of Illinois Open Source |
6 | | // License. See LICENSE.TXT for details. |
7 | | // |
8 | | //===----------------------------------------------------------------------===// |
9 | | // |
10 | | // This file declares the ARM specific subclass of TargetMachine. |
11 | | // |
12 | | //===----------------------------------------------------------------------===// |
13 | | |
14 | | #ifndef LLVM_LIB_TARGET_ARM_ARMTARGETMACHINE_H |
15 | | #define LLVM_LIB_TARGET_ARM_ARMTARGETMACHINE_H |
16 | | |
17 | | #include "ARMSubtarget.h" |
18 | | #include "llvm/ADT/Optional.h" |
19 | | #include "llvm/ADT/StringMap.h" |
20 | | #include "llvm/ADT/StringRef.h" |
21 | | #include "llvm/Analysis/TargetTransformInfo.h" |
22 | | #include "llvm/Support/CodeGen.h" |
23 | | #include "llvm/Target/TargetMachine.h" |
24 | | #include <memory> |
25 | | |
26 | | namespace llvm { |
27 | | |
28 | | class ARMBaseTargetMachine : public LLVMTargetMachine { |
29 | | public: |
30 | | enum ARMABI { |
31 | | ARM_ABI_UNKNOWN, |
32 | | ARM_ABI_APCS, |
33 | | ARM_ABI_AAPCS, // ARM EABI |
34 | | ARM_ABI_AAPCS16 |
35 | | } TargetABI; |
36 | | |
37 | | protected: |
38 | | std::unique_ptr<TargetLoweringObjectFile> TLOF; |
39 | | bool isLittle; |
40 | | mutable StringMap<std::unique_ptr<ARMSubtarget>> SubtargetMap; |
41 | | |
42 | | public: |
43 | | ARMBaseTargetMachine(const Target &T, const Triple &TT, StringRef CPU, |
44 | | StringRef FS, const TargetOptions &Options, |
45 | | Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM, |
46 | | CodeGenOpt::Level OL, bool isLittle); |
47 | | ~ARMBaseTargetMachine() override; |
48 | | |
49 | | const ARMSubtarget *getSubtargetImpl(const Function &F) const override; |
50 | | // DO NOT IMPLEMENT: There is no such thing as a valid default subtarget, |
51 | | // subtargets are per-function entities based on the target-specific |
52 | | // attributes of each function. |
53 | | const ARMSubtarget *getSubtargetImpl() const = delete; |
54 | 1.76k | bool isLittleEndian() const { return isLittle; } |
55 | | |
56 | | /// \brief Get the TargetIRAnalysis for this target. |
57 | | TargetIRAnalysis getTargetIRAnalysis() override; |
58 | | |
59 | | // Pass Pipeline Configuration |
60 | | TargetPassConfig *createPassConfig(PassManagerBase &PM) override; |
61 | | |
62 | 158k | TargetLoweringObjectFile *getObjFileLowering() const override { |
63 | 158k | return TLOF.get(); |
64 | 158k | } |
65 | | }; |
66 | | |
67 | | /// ARM/Thumb little endian target machine. |
68 | | /// |
69 | | class ARMLETargetMachine : public ARMBaseTargetMachine { |
70 | | public: |
71 | | ARMLETargetMachine(const Target &T, const Triple &TT, StringRef CPU, |
72 | | StringRef FS, const TargetOptions &Options, |
73 | | Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM, |
74 | | CodeGenOpt::Level OL, bool JIT); |
75 | | }; |
76 | | |
77 | | /// ARM/Thumb big endian target machine. |
78 | | /// |
79 | | class ARMBETargetMachine : public ARMBaseTargetMachine { |
80 | | public: |
81 | | ARMBETargetMachine(const Target &T, const Triple &TT, StringRef CPU, |
82 | | StringRef FS, const TargetOptions &Options, |
83 | | Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM, |
84 | | CodeGenOpt::Level OL, bool JIT); |
85 | | }; |
86 | | |
87 | | } // end namespace llvm |
88 | | |
89 | | #endif // LLVM_LIB_TARGET_ARM_ARMTARGETMACHINE_H |