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1 //===- subzero/src/IceTargetLoweringMIPS32.h - MIPS32 lowering ---*- C++-*-===// | 1 //===- subzero/src/IceTargetLoweringMIPS32.h - MIPS32 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 /// \file | 10 /// \file |
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47 RegClass RC = Var->getRegClass(); | 47 RegClass RC = Var->getRegClass(); |
48 assert(RC < RC_Target); | 48 assert(RC < RC_Target); |
49 return TypeToRegisterSet[RC]; | 49 return TypeToRegisterSet[RC]; |
50 } | 50 } |
51 const llvm::SmallBitVector &getAliasesForRegister(SizeT Reg) const override { | 51 const llvm::SmallBitVector &getAliasesForRegister(SizeT Reg) const override { |
52 return RegisterAliases[Reg]; | 52 return RegisterAliases[Reg]; |
53 } | 53 } |
54 bool hasFramePointer() const override { return UsesFramePointer; } | 54 bool hasFramePointer() const override { return UsesFramePointer; } |
55 void setHasFramePointer() override { UsesFramePointer = true; } | 55 void setHasFramePointer() override { UsesFramePointer = true; } |
56 SizeT getStackReg() const override { return RegMIPS32::Reg_SP; } | 56 SizeT getStackReg() const override { return RegMIPS32::Reg_SP; } |
| 57 SizeT getFrameReg() const override { return RegMIPS32::Reg_FP; } |
57 SizeT getFrameOrStackReg() const override { | 58 SizeT getFrameOrStackReg() const override { |
58 return UsesFramePointer ? RegMIPS32::Reg_FP : RegMIPS32::Reg_SP; | 59 return UsesFramePointer ? getFrameReg() : getStackReg(); |
59 } | 60 } |
60 size_t typeWidthInBytesOnStack(Type Ty) const override { | 61 size_t typeWidthInBytesOnStack(Type Ty) const override { |
61 // Round up to the next multiple of 4 bytes. In particular, i1, i8, and i16 | 62 // Round up to the next multiple of 4 bytes. In particular, i1, i8, and i16 |
62 // are rounded up to 4 bytes. | 63 // are rounded up to 4 bytes. |
63 return (typeWidthInBytes(Ty) + 3) & ~3; | 64 return (typeWidthInBytes(Ty) + 3) & ~3; |
64 } | 65 } |
65 uint32_t getStackAlignment() const override { | 66 uint32_t getStackAlignment() const override { |
66 // TODO(sehr): what is the stack alignment? | 67 // TODO(sehr): what is the stack alignment? |
67 return 1; | 68 return 1; |
68 } | 69 } |
| 70 void reserveFixedAllocaArea(size_t Size, size_t Align) override { |
| 71 // TODO(sehr): Implement fixed stack layout. |
| 72 (void)Size; |
| 73 (void)Align; |
| 74 llvm::report_fatal_error("Not yet implemented"); |
| 75 } |
| 76 int32_t getFrameFixedAllocaOffset() const override { |
| 77 // TODO(sehr): Implement fixed stack layout. |
| 78 llvm::report_fatal_error("Not yet implemented"); |
| 79 return 0; |
| 80 } |
69 | 81 |
70 bool shouldSplitToVariable64On32(Type Ty) const override { | 82 bool shouldSplitToVariable64On32(Type Ty) const override { |
71 return Ty == IceType_i64; | 83 return Ty == IceType_i64; |
72 } | 84 } |
73 | 85 |
74 // TODO(ascull): what is the best size of MIPS? | 86 // TODO(ascull): what is the best size of MIPS? |
75 SizeT getMinJumpTableSize() const override { return 3; } | 87 SizeT getMinJumpTableSize() const override { return 3; } |
76 void emitJumpTable(const Cfg *Func, | 88 void emitJumpTable(const Cfg *Func, |
77 const InstJumpTable *JumpTable) const override; | 89 const InstJumpTable *JumpTable) const override; |
78 | 90 |
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282 protected: | 294 protected: |
283 explicit TargetHeaderMIPS32(GlobalContext *Ctx); | 295 explicit TargetHeaderMIPS32(GlobalContext *Ctx); |
284 | 296 |
285 private: | 297 private: |
286 ~TargetHeaderMIPS32() = default; | 298 ~TargetHeaderMIPS32() = default; |
287 }; | 299 }; |
288 | 300 |
289 } // end of namespace Ice | 301 } // end of namespace Ice |
290 | 302 |
291 #endif // SUBZERO_SRC_ICETARGETLOWERINGMIPS32_H | 303 #endif // SUBZERO_SRC_ICETARGETLOWERINGMIPS32_H |
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