||Paul T Robinson
||DW_OP_bit_piece offset operand mostly doesn't matter
Section 126.96.36.199, pg 42
The description of DW_OP_bit_piece lists several cases for the preceding
- undefined (no location description)
- implicit or stack value
- memory address
For the undefined case, the spec explicitly says the bit offset operand
"doesn't matter." For register, implicit, or stack value, the piece must
use the least significant bits; in these cases, the bit offset again really
doesn't matter, although the spec doesn't say so in so many words.
Only for the memory address case does the bit-offset operand matter.
Please reword the description to make it clearer that the bit-offset
operand is useful only for the memory address case. The operand probably
should be explicitly ignored for all the other cases (not just the undefined case).