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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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196 /// prolog or epilog or for marking scratch registers as killed by a call. If | 196 /// prolog or epilog or for marking scratch registers as killed by a call. If |
197 /// a Type is not provided, a target-specific default type is used. | 197 /// a Type is not provided, a target-specific default type is used. |
198 virtual Variable *getPhysicalRegister(SizeT RegNum, | 198 virtual Variable *getPhysicalRegister(SizeT RegNum, |
199 Type Ty = IceType_void) = 0; | 199 Type Ty = IceType_void) = 0; |
200 /// Returns a printable name for the register. | 200 /// Returns a printable name for the register. |
201 virtual IceString getRegName(SizeT RegNum, Type Ty) const = 0; | 201 virtual IceString getRegName(SizeT RegNum, Type Ty) const = 0; |
202 | 202 |
203 virtual bool hasFramePointer() const { return false; } | 203 virtual bool hasFramePointer() const { return false; } |
204 virtual void setHasFramePointer() = 0; | 204 virtual void setHasFramePointer() = 0; |
205 virtual SizeT getStackReg() const = 0; | 205 virtual SizeT getStackReg() const = 0; |
| 206 virtual SizeT getFrameReg() const = 0; |
206 virtual SizeT getFrameOrStackReg() const = 0; | 207 virtual SizeT getFrameOrStackReg() const = 0; |
207 virtual size_t typeWidthInBytesOnStack(Type Ty) const = 0; | 208 virtual size_t typeWidthInBytesOnStack(Type Ty) const = 0; |
208 virtual uint32_t getStackAlignment() const = 0; | 209 virtual uint32_t getStackAlignment() const = 0; |
| 210 virtual void reserveFixedAllocaArea(size_t Size, size_t Align) = 0; |
| 211 virtual int32_t getFrameFixedAllocaOffset() const = 0; |
209 | 212 |
210 /// Return whether a 64-bit Variable should be split into a Variable64On32. | 213 /// Return whether a 64-bit Variable should be split into a Variable64On32. |
211 virtual bool shouldSplitToVariable64On32(Type Ty) const = 0; | 214 virtual bool shouldSplitToVariable64On32(Type Ty) const = 0; |
212 | 215 |
213 bool hasComputedFrame() const { return HasComputedFrame; } | 216 bool hasComputedFrame() const { return HasComputedFrame; } |
214 /// Returns true if this function calls a function that has the "returns | 217 /// Returns true if this function calls a function that has the "returns |
215 /// twice" attribute. | 218 /// twice" attribute. |
216 bool callsReturnsTwice() const { return CallsReturnsTwice; } | 219 bool callsReturnsTwice() const { return CallsReturnsTwice; } |
217 void setCallsReturnsTwice(bool RetTwice) { CallsReturnsTwice = RetTwice; } | 220 void setCallsReturnsTwice(bool RetTwice) { CallsReturnsTwice = RetTwice; } |
218 int32_t getStackAdjustment() const { return StackAdjustment; } | 221 int32_t getStackAdjustment() const { return StackAdjustment; } |
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480 virtual void lower() {} | 483 virtual void lower() {} |
481 | 484 |
482 protected: | 485 protected: |
483 explicit TargetHeaderLowering(GlobalContext *Ctx) : Ctx(Ctx) {} | 486 explicit TargetHeaderLowering(GlobalContext *Ctx) : Ctx(Ctx) {} |
484 GlobalContext *Ctx; | 487 GlobalContext *Ctx; |
485 }; | 488 }; |
486 | 489 |
487 } // end of namespace Ice | 490 } // end of namespace Ice |
488 | 491 |
489 #endif // SUBZERO_SRC_ICETARGETLOWERING_H | 492 #endif // SUBZERO_SRC_ICETARGETLOWERING_H |
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