search for: addmachineregexpression

...ues or l-values before DWARF emission, only whether we're describing a variable's memory location, a variable's exact value, or some other implicit location (such as implicit_pointer). Whether an expression is an r-value or l-value can be trivially determined at the end of the pipeline (addMachineRegExpression already does this). For an expression ending with DW_OP_LLVM_direct: if the preceding expression is only a single register then we emit a register location, if the preceding expression ends with DW_OP_deref then we can remove the deref and emit a memory location, and otherwise we emit the expressi...

> I'm not sure this will work as stated here. Indirectness is (mostly) orthogonal to DW_OP_stack_value. DW_OP_stack_value denotes that we reconstructed the value of the variable, but it doesn't exist in the program ("The DW_OP_stack_value operation specifies that the object does not exist in memory but its value is nonetheless known"), for example, a constant value. I think we