Re: libobjc2 still failing tests

[David Chisnall]

On 25/01/2019 14:01, Andreas Fink wrote:
> I found out what makes it break.
>
>
> The cmake option   -DCMAKE_BUILD_TYPE=RelWithDebInfo

Thanks.  There was a bug in the log2 calculation for storing the ivar 
offsets that worked at O0 because of wrapping behaviour when we 
truncated the value to 32-bit, but triggered undefined behaviour that 
allowed the optimiser to remove a check.  The tests are now all passing 
for me in release and debug configurations.

David