Segher Boessenkool <[EMAIL PROTECTED]> wrote:
> This simply isn't true. The compiler *can* combine asm stuff:
>
>
> typedef struct { int counter; } atomic_t;
>
> static inline __attribute__((pure)) int atomic_read(const atomic_t *v)
> {
> int x;
> asm("ld %0,@%1" : "=r"(x) : "r"(&v->counter), "m"(v->counter));
> return x;
> }
That's not precisely combining asm stuff. The compiler is ditching a whole
function because you've told it it can cache the result.
David
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