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1 //===- subzero/src/IceTargetLowering.h - Lowering interface -----*- C++ -*-===// | 1 //===- subzero/src/IceTargetLowering.h - Lowering interface -----*- 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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174 /// a Type is not provided, a target-specific default type is used. | 174 /// a Type is not provided, a target-specific default type is used. |
175 virtual Variable *getPhysicalRegister(SizeT RegNum, | 175 virtual Variable *getPhysicalRegister(SizeT RegNum, |
176 Type Ty = IceType_void) = 0; | 176 Type Ty = IceType_void) = 0; |
177 /// Returns a printable name for the register. | 177 /// Returns a printable name for the register. |
178 virtual IceString getRegName(SizeT RegNum, Type Ty) const = 0; | 178 virtual IceString getRegName(SizeT RegNum, Type Ty) const = 0; |
179 | 179 |
180 virtual bool hasFramePointer() const { return false; } | 180 virtual bool hasFramePointer() const { return false; } |
181 virtual SizeT getFrameOrStackReg() const = 0; | 181 virtual SizeT getFrameOrStackReg() const = 0; |
182 virtual size_t typeWidthInBytesOnStack(Type Ty) const = 0; | 182 virtual size_t typeWidthInBytesOnStack(Type Ty) const = 0; |
183 | 183 |
| 184 /// Return whether a 64-bit Variable should be split into a Variable64On32. |
| 185 virtual bool shouldSplitToVariable64On32(Type Ty) const = 0; |
| 186 |
184 bool hasComputedFrame() const { return HasComputedFrame; } | 187 bool hasComputedFrame() const { return HasComputedFrame; } |
185 /// Returns true if this function calls a function that has the "returns | 188 /// Returns true if this function calls a function that has the "returns |
186 /// twice" attribute. | 189 /// twice" attribute. |
187 bool callsReturnsTwice() const { return CallsReturnsTwice; } | 190 bool callsReturnsTwice() const { return CallsReturnsTwice; } |
188 void setCallsReturnsTwice(bool RetTwice) { CallsReturnsTwice = RetTwice; } | 191 void setCallsReturnsTwice(bool RetTwice) { CallsReturnsTwice = RetTwice; } |
189 int32_t getStackAdjustment() const { return StackAdjustment; } | 192 int32_t getStackAdjustment() const { return StackAdjustment; } |
190 void updateStackAdjustment(int32_t Offset) { StackAdjustment += Offset; } | 193 void updateStackAdjustment(int32_t Offset) { StackAdjustment += Offset; } |
191 void resetStackAdjustment() { StackAdjustment = 0; } | 194 void resetStackAdjustment() { StackAdjustment = 0; } |
192 SizeT makeNextLabelNumber() { return NextLabelNumber++; } | 195 SizeT makeNextLabelNumber() { return NextLabelNumber++; } |
193 SizeT makeNextJumpTableNumber() { return NextJumpTableNumber++; } | 196 SizeT makeNextJumpTableNumber() { return NextJumpTableNumber++; } |
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450 virtual void lower() {} | 453 virtual void lower() {} |
451 | 454 |
452 protected: | 455 protected: |
453 explicit TargetHeaderLowering(GlobalContext *Ctx) : Ctx(Ctx) {} | 456 explicit TargetHeaderLowering(GlobalContext *Ctx) : Ctx(Ctx) {} |
454 GlobalContext *Ctx; | 457 GlobalContext *Ctx; |
455 }; | 458 }; |
456 | 459 |
457 } // end of namespace Ice | 460 } // end of namespace Ice |
458 | 461 |
459 #endif // SUBZERO_SRC_ICETARGETLOWERING_H | 462 #endif // SUBZERO_SRC_ICETARGETLOWERING_H |
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