Messages in this thread | | | Subject | Re: [PATCH] Use __attribute__((malloc)) for gcc 3.2 | From | Andi Kleen <> | Date | 30 Sep 2002 02:04:02 +0200 |
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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.
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