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Re: assuming signed overflow does not occur


On 03/09/17 23:00, Bruce Korb wrote:

RFE's are for this list: please improve the message.

The message does not have to be a dissertation, but messages
nowadays can certainly include URL's to direct people to
reasonable places. I'd suggest something like:

     gcc.gnu.org/gcc-messages/xxx

WRT looking at a GIMPLE dump, I'd first have to learn what GIMPLE is,
then learn how to decipher one, then figure out how to get it out of
the compiler and
finally plod through it. Guess what? I won't be doing that. I'll
squish the warning first. :(  Effective messages are very important.

I wrote an explanation of the current status of Wstrict-overflow to the best of my knowledge: https://gcc.gnu.org/wiki/VerboseDiagnostics#Wstrict_overflow

I didn't mention GIMPLE because it is often the case that the root of the problem is not obvious in gimple unless one also debugs the compiler at the same time.

I hope it is useful!

Cheers,

Manuel.


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