On Tue, Jul 26, 2011 at 1:29 PM, Jakub Jelinek <ja...@redhat.com> wrote:
> On Tue, Jul 26, 2011 at 10:21:11PM +0200, Uros Bizjak wrote:
>> This also works, we look at orig_x that looks like:
>>
>> (mem/u/c:SI (const:DI (unspec:DI [
>> (symbol_ref:SI ("__sflush") [flags 0x41]
>> <function_decl 0x7f6f2eaad000 __sflush>)
>> ] UNSPEC_GOTPCREL)) [2 S4 A8])
>>
>> So, we look at SImode load, and compare it with SImode (actually
>> ptr_mode) symbol. Will your suggestion work with this RTX?
>
> Then
> if (GET_MODE (orig_x) != GET_MODE (x))
> {
> x = simplify_gen_subreg (GET_MODE (orig_x), x, GET_MODE (x), 0);
> if (x == NULL_RTX)
> return orig_x;
> }
> will work, orig_x is the above SImode MEM, x is (symbol_ref:SI ("__sflush")
> [flags 0x41] <function_decl 0x7f6f2eaad000 __sflush>)
> thus the modes are the same and no simplify_gen_subreg needs to be done, the
> mode is already right.
>
This works for my testcase. I will do a full test.
Thanks.
--
H.J.
