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Follow-up for r217020: actually commit the fix for PR20800,

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revert the accidentally committed changes to LLVMSymbolize.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217021 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Alexander Potapenko
2014-09-03 07:37:20 +00:00
parent fac68d2d70
commit 42ebff8c99
2 changed files with 23 additions and 14 deletions
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25
lib/Target/X86/MCTargetDesc/X86AsmBackend.cpp
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@@ -437,10 +437,30 @@ class DarwinX86AsmBackend : public X86AsmBackend {
bool Is64Bit;
unsigned OffsetSize; ///< Offset of a "push" instruction.
unsigned PushInstrSize; ///< Size of a "push" instruction.
unsigned MoveInstrSize; ///< Size of a "move" instruction.
unsigned StackDivide; ///< Amount to adjust stack size by.
protected:
/// \brief Size of a "push" instruction for the given register.
unsigned PushInstrSize(unsigned Reg) const {
switch (Reg) {
case X86::EBX:
case X86::ECX:
case X86::EDX:
case X86::EDI:
case X86::ESI:
case X86::EBP:
case X86::RBX:
case X86::RBP:
return 1;
case X86::R12:
case X86::R13:
case X86::R14:
case X86::R15:
return 2;
}
return 1;
}
/// \brief Implementation of algorithm to generate the compact unwind encoding
/// for the CFI instructions.
uint32_t
@@ -530,7 +550,7 @@ protected:
unsigned Reg = MRI.getLLVMRegNum(Inst.getRegister(), true);
SavedRegs[SavedRegIdx++] = Reg;
StackAdjust += OffsetSize;
InstrOffset += PushInstrSize;
InstrOffset += PushInstrSize(Reg);
break;
}
}
@@ -724,7 +744,6 @@ public:
OffsetSize = Is64Bit ? 8 : 4;
MoveInstrSize = Is64Bit ? 3 : 2;
StackDivide = Is64Bit ? 8 : 4;
PushInstrSize = 1;
}
};