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1 //===- subzero/src/IceInstX8632.cpp - X86-32 instruction implementation ---===// | 1 //===- subzero/src/IceInstX8632.cpp - X86-32 instruction implementation ---===// |
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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69 #undef X | 69 #undef X |
70 }; | 70 }; |
71 | 71 |
72 void TargetX8632Traits::X86Operand::dump(const Cfg *, Ostream &Str) const { | 72 void TargetX8632Traits::X86Operand::dump(const Cfg *, Ostream &Str) const { |
73 if (BuildDefs::dump()) | 73 if (BuildDefs::dump()) |
74 Str << "<OperandX8632>"; | 74 Str << "<OperandX8632>"; |
75 } | 75 } |
76 | 76 |
77 TargetX8632Traits::X86OperandMem::X86OperandMem( | 77 TargetX8632Traits::X86OperandMem::X86OperandMem( |
78 Cfg *Func, Type Ty, Variable *Base, Constant *Offset, Variable *Index, | 78 Cfg *Func, Type Ty, Variable *Base, Constant *Offset, Variable *Index, |
79 uint16_t Shift, SegmentRegisters SegmentReg, bool IsPIC) | 79 uint16_t Shift, SegmentRegisters SegmentReg, bool IsRebased) |
80 : X86Operand(kMem, Ty), Base(Base), Offset(Offset), Index(Index), | 80 : X86Operand(kMem, Ty), Base(Base), Offset(Offset), Index(Index), |
81 Shift(Shift), SegmentReg(SegmentReg), IsPIC(IsPIC) { | 81 Shift(Shift), SegmentReg(SegmentReg), IsRebased(IsRebased) { |
82 assert(Shift <= 3); | 82 assert(Shift <= 3); |
83 Vars = nullptr; | 83 Vars = nullptr; |
84 NumVars = 0; | 84 NumVars = 0; |
85 if (Base) | 85 if (Base) |
86 ++NumVars; | 86 ++NumVars; |
87 if (Index) | 87 if (Index) |
88 ++NumVars; | 88 ++NumVars; |
89 if (NumVars) { | 89 if (NumVars) { |
90 Vars = Func->allocateArrayOf<Variable *>(NumVars); | 90 Vars = Func->allocateArrayOf<Variable *>(NumVars); |
91 SizeT I = 0; | 91 SizeT I = 0; |
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111 return Disp; | 111 return Disp; |
112 } | 112 } |
113 | 113 |
114 void validateMemOperandPIC(const TargetX8632Traits::X86OperandMem *Mem, | 114 void validateMemOperandPIC(const TargetX8632Traits::X86OperandMem *Mem, |
115 bool UseNonsfi) { | 115 bool UseNonsfi) { |
116 if (!BuildDefs::asserts()) | 116 if (!BuildDefs::asserts()) |
117 return; | 117 return; |
118 const bool HasCR = | 118 const bool HasCR = |
119 Mem->getOffset() && llvm::isa<ConstantRelocatable>(Mem->getOffset()); | 119 Mem->getOffset() && llvm::isa<ConstantRelocatable>(Mem->getOffset()); |
120 (void)HasCR; | 120 (void)HasCR; |
121 const bool IsPIC = Mem->getIsPIC(); | 121 const bool IsRebased = Mem->getIsRebased(); |
122 (void)IsPIC; | 122 (void)IsRebased; |
123 if (UseNonsfi) | 123 if (UseNonsfi) |
124 assert(HasCR == IsPIC); | 124 assert(HasCR == IsRebased); |
125 else | 125 else |
126 assert(!IsPIC); | 126 assert(!IsRebased); |
127 } | 127 } |
128 | 128 |
129 } // end of anonymous namespace | 129 } // end of anonymous namespace |
130 | 130 |
131 void TargetX8632Traits::X86OperandMem::emit(const Cfg *Func) const { | 131 void TargetX8632Traits::X86OperandMem::emit(const Cfg *Func) const { |
132 if (!BuildDefs::dump()) | 132 if (!BuildDefs::dump()) |
133 return; | 133 return; |
134 const bool UseNonsfi = Func->getContext()->getFlags().getUseNonsfi(); | 134 const bool UseNonsfi = Func->getContext()->getFlags().getUseNonsfi(); |
135 validateMemOperandPIC(this, UseNonsfi); | 135 validateMemOperandPIC(this, UseNonsfi); |
136 const auto *Target = | 136 const auto *Target = |
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253 void TargetX8632Traits::X86OperandMem::emitSegmentOverride( | 253 void TargetX8632Traits::X86OperandMem::emitSegmentOverride( |
254 TargetX8632Traits::Assembler *Asm) const { | 254 TargetX8632Traits::Assembler *Asm) const { |
255 if (SegmentReg != DefaultSegment) { | 255 if (SegmentReg != DefaultSegment) { |
256 assert(SegmentReg >= 0 && SegmentReg < SegReg_NUM); | 256 assert(SegmentReg >= 0 && SegmentReg < SegReg_NUM); |
257 Asm->emitSegmentOverride(X8632::Traits::InstSegmentPrefixes[SegmentReg]); | 257 Asm->emitSegmentOverride(X8632::Traits::InstSegmentPrefixes[SegmentReg]); |
258 } | 258 } |
259 } | 259 } |
260 | 260 |
261 TargetX8632Traits::Address TargetX8632Traits::X86OperandMem::toAsmAddress( | 261 TargetX8632Traits::Address TargetX8632Traits::X86OperandMem::toAsmAddress( |
262 TargetX8632Traits::Assembler *Asm, | 262 TargetX8632Traits::Assembler *Asm, |
263 const Ice::TargetLowering *TargetLowering) const { | 263 const Ice::TargetLowering *TargetLowering, bool /*LeaAddr*/) const { |
264 const auto *Target = | 264 const auto *Target = |
265 static_cast<const ::Ice::X8632::TargetX8632 *>(TargetLowering); | 265 static_cast<const ::Ice::X8632::TargetX8632 *>(TargetLowering); |
266 const bool UseNonsfi = Target->getGlobalContext()->getFlags().getUseNonsfi(); | 266 const bool UseNonsfi = Target->getGlobalContext()->getFlags().getUseNonsfi(); |
267 validateMemOperandPIC(this, UseNonsfi); | 267 validateMemOperandPIC(this, UseNonsfi); |
268 int32_t Disp = 0; | 268 int32_t Disp = 0; |
269 if (getBase() && getBase()->isRematerializable()) { | 269 if (getBase() && getBase()->isRematerializable()) { |
270 Disp += GetRematerializableOffset(getBase(), Target); | 270 Disp += GetRematerializableOffset(getBase(), Target); |
271 } | 271 } |
272 // The index should never be rematerializable. But if we ever allow it, then | 272 // The index should never be rematerializable. But if we ever allow it, then |
273 // we should make sure the rematerialization offset is shifted by the Shift | 273 // we should make sure the rematerialization offset is shifted by the Shift |
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346 Var->dump(Func); | 346 Var->dump(Func); |
347 else | 347 else |
348 Var->dump(Str); | 348 Var->dump(Str); |
349 Str << ")"; | 349 Str << ")"; |
350 } | 350 } |
351 | 351 |
352 } // namespace X8632 | 352 } // namespace X8632 |
353 } // end of namespace Ice | 353 } // end of namespace Ice |
354 | 354 |
355 X86INSTS_DEFINE_STATIC_DATA(X8632, X8632::Traits) | 355 X86INSTS_DEFINE_STATIC_DATA(X8632, X8632::Traits) |
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