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1 //===- subzero/src/IceTargetLoweringARM32.h - ARM32 lowering ----*- C++ -*-===// | 1 //===- subzero/src/IceTargetLoweringARM32.h - ARM32 lowering ----*- C++ -*-===// |
2 // | 2 // |
3 // The Subzero Code Generator | 3 // The Subzero Code Generator |
4 // | 4 // |
5 // This file is distributed under the University of Illinois Open Source | 5 // This file is distributed under the University of Illinois Open Source |
6 // License. See LICENSE.TXT for details. | 6 // License. See LICENSE.TXT for details. |
7 // | 7 // |
8 //===----------------------------------------------------------------------===// | 8 //===----------------------------------------------------------------------===// |
9 // | 9 // |
10 // This file declares the TargetLoweringARM32 class, which implements the | 10 // This file declares the TargetLoweringARM32 class, which implements the |
11 // TargetLowering interface for the ARM 32-bit architecture. | 11 // TargetLowering interface for the ARM 32-bit architecture. |
12 // | 12 // |
13 //===----------------------------------------------------------------------===// | 13 //===----------------------------------------------------------------------===// |
14 | 14 |
15 #ifndef SUBZERO_SRC_ICETARGETLOWERINGARM32_H | 15 #ifndef SUBZERO_SRC_ICETARGETLOWERINGARM32_H |
16 #define SUBZERO_SRC_ICETARGETLOWERINGARM32_H | 16 #define SUBZERO_SRC_ICETARGETLOWERINGARM32_H |
17 | 17 |
18 #include "IceDefs.h" | 18 #include "IceDefs.h" |
| 19 #include "IceInstARM32.h" |
19 #include "IceRegistersARM32.h" | 20 #include "IceRegistersARM32.h" |
20 #include "IceTargetLowering.h" | 21 #include "IceTargetLowering.h" |
21 | 22 |
22 namespace Ice { | 23 namespace Ice { |
23 | 24 |
24 class TargetARM32 : public TargetLowering { | 25 class TargetARM32 : public TargetLowering { |
25 TargetARM32() = delete; | 26 TargetARM32() = delete; |
26 TargetARM32(const TargetARM32 &) = delete; | 27 TargetARM32(const TargetARM32 &) = delete; |
27 TargetARM32 &operator=(const TargetARM32 &) = delete; | 28 TargetARM32 &operator=(const TargetARM32 &) = delete; |
28 | 29 |
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84 const AssignList &Assignments) override; | 85 const AssignList &Assignments) override; |
85 void doAddressOptLoad() override; | 86 void doAddressOptLoad() override; |
86 void doAddressOptStore() override; | 87 void doAddressOptStore() override; |
87 void randomlyInsertNop(float Probability) override; | 88 void randomlyInsertNop(float Probability) override; |
88 void makeRandomRegisterPermutation( | 89 void makeRandomRegisterPermutation( |
89 llvm::SmallVectorImpl<int32_t> &Permutation, | 90 llvm::SmallVectorImpl<int32_t> &Permutation, |
90 const llvm::SmallBitVector &ExcludeRegisters) const override; | 91 const llvm::SmallBitVector &ExcludeRegisters) const override; |
91 | 92 |
92 static Type stackSlotType(); | 93 static Type stackSlotType(); |
93 | 94 |
| 95 // The following are helpers that insert lowered ARM32 instructions |
| 96 // with minimal syntactic overhead, so that the lowering code can |
| 97 // look as close to assembly as practical. |
| 98 |
| 99 void _ret(Variable *LR, Variable *Src0 = nullptr) { |
| 100 Context.insert(InstARM32Ret::create(Func, LR, Src0)); |
| 101 } |
| 102 |
94 bool UsesFramePointer; | 103 bool UsesFramePointer; |
95 bool NeedsStackAlignment; | 104 bool NeedsStackAlignment; |
96 llvm::SmallBitVector TypeToRegisterSet[IceType_NUM]; | 105 llvm::SmallBitVector TypeToRegisterSet[IceType_NUM]; |
97 llvm::SmallBitVector ScratchRegs; | 106 llvm::SmallBitVector ScratchRegs; |
98 llvm::SmallBitVector RegsUsed; | 107 llvm::SmallBitVector RegsUsed; |
99 VarList PhysicalRegisters[IceType_NUM]; | 108 VarList PhysicalRegisters[IceType_NUM]; |
100 static IceString RegNames[]; | 109 static IceString RegNames[]; |
101 | 110 |
102 private: | 111 private: |
103 ~TargetARM32() override {} | 112 ~TargetARM32() override {} |
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121 | 130 |
122 private: | 131 private: |
123 void lowerGlobal(const VariableDeclaration &Var) const; | 132 void lowerGlobal(const VariableDeclaration &Var) const; |
124 ~TargetDataARM32() override {} | 133 ~TargetDataARM32() override {} |
125 template <typename T> static void emitConstantPool(GlobalContext *Ctx); | 134 template <typename T> static void emitConstantPool(GlobalContext *Ctx); |
126 }; | 135 }; |
127 | 136 |
128 } // end of namespace Ice | 137 } // end of namespace Ice |
129 | 138 |
130 #endif // SUBZERO_SRC_ICETARGETLOWERINGARM32_H | 139 #endif // SUBZERO_SRC_ICETARGETLOWERINGARM32_H |
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