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1 //===- subzero/src/IceTargetLoweringX8632.h - x86-32 lowering ---*- C++ -*-===// | 1 //===- subzero/src/IceTargetLoweringX8632.h - x86-32 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 TargetLoweringX8632 class, which | 10 // This file declares the TargetLoweringX8632 class, which |
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39 virtual bool hasFramePointer() const { return IsEbpBasedFrame; } | 39 virtual bool hasFramePointer() const { return IsEbpBasedFrame; } |
40 virtual SizeT getFrameOrStackReg() const { | 40 virtual SizeT getFrameOrStackReg() const { |
41 return IsEbpBasedFrame ? Reg_ebp : Reg_esp; | 41 return IsEbpBasedFrame ? Reg_ebp : Reg_esp; |
42 } | 42 } |
43 virtual size_t typeWidthInBytesOnStack(Type Ty) { | 43 virtual size_t typeWidthInBytesOnStack(Type Ty) { |
44 // Round up to the next multiple of 4 bytes. In particular, i1, | 44 // Round up to the next multiple of 4 bytes. In particular, i1, |
45 // i8, and i16 are rounded up to 4 bytes. | 45 // i8, and i16 are rounded up to 4 bytes. |
46 return (typeWidthInBytes(Ty) + 3) & ~3; | 46 return (typeWidthInBytes(Ty) + 3) & ~3; |
47 } | 47 } |
48 virtual void emitVariable(const Variable *Var, const Cfg *Func) const; | 48 virtual void emitVariable(const Variable *Var, const Cfg *Func) const; |
| 49 virtual void lowerArguments(); |
49 virtual void addProlog(CfgNode *Node); | 50 virtual void addProlog(CfgNode *Node); |
50 virtual void addEpilog(CfgNode *Node); | 51 virtual void addEpilog(CfgNode *Node); |
51 virtual void emitConstants() const; | 52 virtual void emitConstants() const; |
52 SizeT makeNextLabelNumber() { return NextLabelNumber++; } | 53 SizeT makeNextLabelNumber() { return NextLabelNumber++; } |
53 // Ensure that a 64-bit Variable has been split into 2 32-bit | 54 // Ensure that a 64-bit Variable has been split into 2 32-bit |
54 // Variables, creating them if necessary. This is needed for all | 55 // Variables, creating them if necessary. This is needed for all |
55 // I64 operations, and it is needed for pushing F64 arguments for | 56 // I64 operations, and it is needed for pushing F64 arguments for |
56 // function calls using the 32-bit push instruction (though the | 57 // function calls using the 32-bit push instruction (though the |
57 // latter could be done by directly writing to the stack). | 58 // latter could be done by directly writing to the stack). |
58 void split64(Variable *Var); | 59 void split64(Variable *Var); |
59 void setArgOffsetAndCopy(Variable *Arg, Variable *FramePtr, | 60 void finishArgumentLowering(Variable *Arg, Variable *FramePtr, |
60 size_t BasicFrameOffset, size_t &InArgsSizeBytes); | 61 size_t BasicFrameOffset, size_t &InArgsSizeBytes); |
61 Operand *loOperand(Operand *Operand); | 62 Operand *loOperand(Operand *Operand); |
62 Operand *hiOperand(Operand *Operand); | 63 Operand *hiOperand(Operand *Operand); |
63 | 64 |
64 enum Registers { | 65 enum Registers { |
65 #define X(val, init, name, name16, name8, scratch, preserved, stackptr, \ | 66 #define X(val, init, name, name16, name8, scratch, preserved, stackptr, \ |
66 frameptr, isI8, isInt, isFP) \ | 67 frameptr, isI8, isInt, isFP) \ |
67 val init, | 68 val init, |
68 REGX8632_TABLE | 69 REGX8632_TABLE |
69 #undef X | 70 #undef X |
70 Reg_NUM | 71 Reg_NUM |
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321 virtual ~TargetGlobalInitX8632() {} | 322 virtual ~TargetGlobalInitX8632() {} |
322 }; | 323 }; |
323 | 324 |
324 template <> void ConstantInteger::emit(GlobalContext *Ctx) const; | 325 template <> void ConstantInteger::emit(GlobalContext *Ctx) const; |
325 template <> void ConstantFloat::emit(GlobalContext *Ctx) const; | 326 template <> void ConstantFloat::emit(GlobalContext *Ctx) const; |
326 template <> void ConstantDouble::emit(GlobalContext *Ctx) const; | 327 template <> void ConstantDouble::emit(GlobalContext *Ctx) const; |
327 | 328 |
328 } // end of namespace Ice | 329 } // end of namespace Ice |
329 | 330 |
330 #endif // SUBZERO_SRC_ICETARGETLOWERINGX8632_H | 331 #endif // SUBZERO_SRC_ICETARGETLOWERINGX8632_H |
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