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Implement DwarfLLVMRegPair::operator< without violating asymmetry. 

MSVC8 verifies this.

llvm-svn: 154002
This commit is contained in:
Benjamin Kramer 2012-04-04 08:24:08 +00:00
parent 5b6411591c
commit e43bde73aa
1 changed files with 5 additions and 4 deletions
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9
llvm/include/llvm/MC/MCRegisterInfo.h
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@ -134,8 +134,7 @@ public:
unsigned FromReg;
unsigned ToReg;
bool operator==(unsigned Reg) const { return FromReg == Reg; }
bool operator<(unsigned Reg) const { return FromReg < Reg; }
bool operator<(DwarfLLVMRegPair RHS) const { return FromReg < RHS.FromReg; }
};
private:
const MCRegisterDesc *Desc; // Pointer to the descriptor array
@ -315,7 +314,8 @@ public:
const DwarfLLVMRegPair *M = isEH ? EHL2DwarfRegs : L2DwarfRegs;
unsigned Size = isEH ? EHL2DwarfRegsSize : L2DwarfRegsSize;
const DwarfLLVMRegPair *I = std::lower_bound(M, M+Size, RegNum);
DwarfLLVMRegPair Key = { RegNum, 0 };
const DwarfLLVMRegPair *I = std::lower_bound(M, M+Size, Key);
if (I == M+Size || I->FromReg != RegNum)
return -1;
return I->ToReg;
@ -327,7 +327,8 @@ public:
const DwarfLLVMRegPair *M = isEH ? EHDwarf2LRegs : Dwarf2LRegs;
unsigned Size = isEH ? EHDwarf2LRegsSize : Dwarf2LRegsSize;
const DwarfLLVMRegPair *I = std::lower_bound(M, M+Size, RegNum);
DwarfLLVMRegPair Key = { RegNum, 0 };
const DwarfLLVMRegPair *I = std::lower_bound(M, M+Size, Key);
assert(I != M+Size && I->FromReg == RegNum && "Invalid RegNum");
return I->ToReg;
}