Re: [Tinycc-devel] ASM Output?

[Neil Bradley]

> While normally I'd say that gcc does better at optimizing code, I hit
> this one curious test case the other night where tcc seems to beat it
> easily and I don't understand why:
>
> #include <stdio.h>
> #include <stdint.h>
>
> static inline uint8_t foo(uint8_t const x)
> {
>       static uint8_t table[16] = {
>               'a','b','c','d','x','y','z','q',
>               '1','p','5','w','r','t','0','n'
>       };
>       return table[x % 0xfU];

Probably because gcc is doing a divide here, and tcc is smart enough to do
a logical and? Also, try doing -O3 on gcc and see what comes up.

-->Neil

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Neil Bradley             "The true axis of evil in America is the brilliance of
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