Hello,
> 1) single_set is built on top of single_set2.
> 2) single_set_2 uses REG_UNUSED notes.
> 3) tree-ssa-loop-ivops.c:seq_cost uses single_set.
>
> I can find no indication that rtl dfa is run here to provide the
> information for single_set to produce the correct answer.
it is not. Nevert
Daniel Berlin wrote:
> On Sun, 2006-02-19 at 09:56 -0500, Kenneth Zadeck wrote:
>
>> Steven, Zdenek
>>
>> 1) single_set is built on top of single_set2.
>>
> Yes
>
>> 2) single_set_2 uses REG_UNUSED notes.
>>
> Only if there are multiple sets.
>
>
>> 3) tree-ssa-loop-ivops.c:seq_c
On Sun, 2006-02-19 at 09:56 -0500, Kenneth Zadeck wrote:
> Steven, Zdenek
>
> 1) single_set is built on top of single_set2.
Yes
> 2) single_set_2 uses REG_UNUSED notes.
Only if there are multiple sets.
> 3) tree-ssa-loop-ivops.c:seq_cost uses single_set.
This is because Zdenek builds RTL to dete
Steven, Zdenek
1) single_set is built on top of single_set2.
2) single_set_2 uses REG_UNUSED notes.
3) tree-ssa-loop-ivops.c:seq_cost uses single_set.
I can find no indication that rtl dfa is run here to provide the
information for single_set to produce the correct answer.
Inquiring minds want t
