Comment #2 on issue 390 by [email protected]: Compiling with
AddressSanitizer using gcc ≥4.9 breaks printng some variables in gdb on
Linux
https://code.google.com/p/address-sanitizer/issues/detail?id=390
But why '-fsanitize=address' changes optimizations?
It's possible that it's something with gcc internals, but ever since I'm
working on pretty big C89 project compiled on gcc-s 2.95.3-5.1 I've *never*
encountered '<optimized out>' without '-O' switch, especially with a '-g'
one…
That variable should not be optimized out since it's passed around and
written into. Any combination of '-O' and '-g' switches doesn't stop it
from „disappearing”, also making the variable volatile (!). Only disabling
ASAN.
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