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Move the accessor functions from DIExpression::iterator into a wrapper

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DIExpression::Operand, so we can write range-based for loops.

Thanks to David Blaikie for the idea.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226939 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Adrian Prantl
2015-01-23 21:24:41 +00:00
parent d4c7c06a39
commit d5dc4cff6a
3 changed files with 30 additions and 21 deletions
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12
lib/CodeGen/AsmPrinter/DwarfExpression.cpp
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@ -210,8 +210,8 @@ bool DwarfExpression::AddMachineRegExpression(DIExpression Expr,
switch (*I) {
case dwarf::DW_OP_piece: {
unsigned SizeOfByte = 8;
unsigned OffsetInBits = I.getArg(1) * SizeOfByte;
unsigned SizeInBits = I.getArg(2) * SizeOfByte;
unsigned OffsetInBits = (*I).getArg(1) * SizeOfByte;
unsigned SizeInBits = (*I).getArg(2) * SizeOfByte;
// Piece always comes at the end of the expression.
return AddMachineRegPiece(MachineReg, SizeInBits,
getOffsetOrZero(OffsetInBits, PieceOffsetInBits));
@ -219,7 +219,7 @@ bool DwarfExpression::AddMachineRegExpression(DIExpression Expr,
case dwarf::DW_OP_plus:
// [DW_OP_reg,Offset,DW_OP_plus,DW_OP_deref] --> [DW_OP_breg,Offset].
if (*std::next(I) == dwarf::DW_OP_deref) {
unsigned Offset = I.getArg(1);
unsigned Offset = (*I).getArg(1);
ValidReg = AddMachineRegIndirect(MachineReg, Offset);
std::advance(I, 2);
break;
@ -248,14 +248,14 @@ void DwarfExpression::AddExpression(DIExpression::iterator I,
switch (*I) {
case dwarf::DW_OP_piece: {
unsigned SizeOfByte = 8;
unsigned OffsetInBits = I.getArg(1) * SizeOfByte;
unsigned SizeInBits = I.getArg(2) * SizeOfByte;
unsigned OffsetInBits = (*I).getArg(1) * SizeOfByte;
unsigned SizeInBits = (*I).getArg(2) * SizeOfByte;
AddOpPiece(SizeInBits, getOffsetOrZero(OffsetInBits, PieceOffsetInBits));
break;
}
case dwarf::DW_OP_plus:
EmitOp(dwarf::DW_OP_plus_uconst);
EmitUnsigned(I.getArg(1));
EmitUnsigned((*I).getArg(1));
break;
case dwarf::DW_OP_deref:
EmitOp(dwarf::DW_OP_deref);