Re: [PATCH] Use __attribute__((malloc)) for gcc 3.2

Andi Kleen
2002-09-30T00:00:05Z

Jakub Jelinek <jakub@redhat.com> writes:

> On Sun, Sep 29, 2002 at 05:27:31PM +0200, Andi Kleen wrote:
> >
> > gcc 3.2 has an __attribute__((malloc)) function attribute. It tells gcc
> > that a function returns newly allocated memory and that the return pointer
> > cannot alias with any other pointer in the parent function. This often
> > allows gcc to generate better code because the optimizer doesn't need take
> > pointer aliasing in account.
>
> Does this matter when the kernel is compiled with -fno-strict-aliasing?

I don't know. But it's certainly worth trying, isn't it ? Giving the
compiler more information can't be a bad thing.

-Andi