Hi there, I see in common.opt that fp-contract=fast is the default for GCC.
But then it gets disabled in c-family/c-opts.c if you are using ISO C (e.g. with -std=c99). But surely if you have also specified -funsafe-math-optimizations then it should flip it back onto fast? I see in gcc/opts.c that a few other flags are triggered based on -funsafe-math-optimizations but not -ffp-contract=fast. I think this is a bug and could lead to less optimal code than people would like if they want c99 compliance for reason A but also unsafe math for reason B. What do you think? Cheers, Ian
