4 ms·
With -fno-builtin. It's still "cheating" as b is local. https://godbolt.org/z/U5VGxt https://godbolt.org/z/U5VGxt Without cheating: https://godbolt.org/z/rzc
by steerablesafe 6y ago
With -fno-builtin. It's still "cheating" as b is local.
https://godbolt.org/z/U5VGxt https://godbolt.org/z/U5VGxt
Without cheating:
https://godbolt.org/z/rzcXg2 https://godbolt.org/z/rzcXg2
It doesn't optimize the two stores to b away.