Hacker News Reader

Sure, if you leave out error checks code runs faster. Compile mutexes to no-ops and get an even better speedup.

The optimizations impacted by -fwrapv have nothing whatsoever to do with “leaving out error checks”

I don't know how you can say that

z = x+y; if(z< x )overflowerror(); //important computation and

for(i=start, i >= start && i < n; i++)docomputation(x[i]); etc.