On 10/14/2016 01:15 AM, Samuel Sieb wrote:
On 10/13/2016 12:04 PM, Richard Shaw wrote:
The following workaround was suggested by upstream and seemed to do the
trick but upstream doesn't want to perform needless initialization on
platforms/arches that don't require it.

Why would it be arch-dependent whether or not a variable needs to be

These warnings are issued from the optimizers. There are some GCC optimizations which are architecture-specific and run very early, before the warnings discussed here are generated.

-Werror for optimizer-dependent warnings is usually not a good idea for this reason.

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