diff options
Diffstat (limited to 'llvm/lib/CodeGen/AsmPrinter')
| -rw-r--r-- | llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp index 5febd9fb380..56856c7ee3f 100644 --- a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp +++ b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp @@ -504,9 +504,20 @@ DIE *DwarfCompileUnit::constructVariableDIEImpl(const DbgVariable &DV, addVariableAddress(DV, *VariableDie, Location); } else if (RegOp.getReg()) addVariableAddress(DV, *VariableDie, MachineLocation(RegOp.getReg())); - } else if (DVInsn->getOperand(0).isImm()) - addConstantValue(*VariableDie, DVInsn->getOperand(0), DV.getType()); - else if (DVInsn->getOperand(0).isFPImm()) + } else if (DVInsn->getOperand(0).isImm()) { + // This variable is described by a single constant. + // Check whether it has a DIExpression. + auto *Expr = DV.getSingleExpression(); + if (Expr && Expr->getNumElements()) { + DIELoc *Loc = new (DIEValueAllocator) DIELoc; + DIEDwarfExpression DwarfExpr(*Asm, *this, *Loc); + // If there is an expression, emit raw unsigned bytes. + DwarfExpr.AddUnsignedConstant(DVInsn->getOperand(0).getImm()); + DwarfExpr.AddExpression(Expr->expr_op_begin(), Expr->expr_op_end()); + addBlock(*VariableDie, dwarf::DW_AT_location, Loc); + } else + addConstantValue(*VariableDie, DVInsn->getOperand(0), DV.getType()); + } else if (DVInsn->getOperand(0).isFPImm()) addConstantFPValue(*VariableDie, DVInsn->getOperand(0)); else if (DVInsn->getOperand(0).isCImm()) addConstantValue(*VariableDie, DVInsn->getOperand(0).getCImm(), |
