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chime
2018 Dec 04
3
nullptr bit-value for DebugInfo in non-default address spaces
Hi llvm-dev@,
It recently transpired that LLVM doesn't correctly preserve debugging
information when null pointer constants are assigned to variables [0], with
the debug records getting dropped by SelectionDAG. Fixing that [1] raises a
few questions about the bit-value of null in different address spaces, so
I'd like to ask:
* Can we just assume that null is zero-valued for all address