diff options
Diffstat (limited to 'contrib/llvm/lib/CodeGen/AsmPrinter/DwarfExpression.cpp')
| -rw-r--r-- | contrib/llvm/lib/CodeGen/AsmPrinter/DwarfExpression.cpp | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfExpression.cpp b/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfExpression.cpp index a2799b8..7b5b831 100644 --- a/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfExpression.cpp +++ b/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfExpression.cpp @@ -211,12 +211,15 @@ bool DwarfExpression::AddMachineRegExpression(const DIExpression *Expr, return AddMachineRegPiece(MachineReg, SizeInBits, getOffsetOrZero(OffsetInBits, PieceOffsetInBits)); } - case dwarf::DW_OP_plus: { - // [DW_OP_reg,Offset,DW_OP_plus,DW_OP_deref] --> [DW_OP_breg,Offset]. + case dwarf::DW_OP_plus: + case dwarf::DW_OP_minus: { + // [DW_OP_reg,Offset,DW_OP_plus, DW_OP_deref] --> [DW_OP_breg, Offset]. + // [DW_OP_reg,Offset,DW_OP_minus,DW_OP_deref] --> [DW_OP_breg,-Offset]. auto N = I.getNext(); if (N != E && N->getOp() == dwarf::DW_OP_deref) { unsigned Offset = I->getArg(0); - ValidReg = AddMachineRegIndirect(MachineReg, Offset); + ValidReg = AddMachineRegIndirect( + MachineReg, I->getOp() == dwarf::DW_OP_plus ? Offset : -Offset); std::advance(I, 2); break; } else @@ -255,6 +258,12 @@ void DwarfExpression::AddExpression(DIExpression::expr_op_iterator I, EmitOp(dwarf::DW_OP_plus_uconst); EmitUnsigned(I->getArg(0)); break; + case dwarf::DW_OP_minus: + // There is no OP_minus_uconst. + EmitOp(dwarf::DW_OP_constu); + EmitUnsigned(I->getArg(0)); + EmitOp(dwarf::DW_OP_minus); + break; case dwarf::DW_OP_deref: EmitOp(dwarf::DW_OP_deref); break; |
