On Thu, May 23, 2013 at 09:58:50AM +0200, Richard Biener wrote:
> 2013-05-23 Richard Biener
>
> PR rtl-optimization/57341
> * ira.c (validate_equiv_mem_from_store): Use anti_dependence
> instead of true_dependence.
>
> * gcc.dg/torture/pr57341.c: New testcase.
Ok, than
When trying to figure out whether it can re-materialize a memory
load before the use in
... = equiv_mem;
dest = ...;
IRA manages to get alias queries wrong by using true_dependence
(which is for read-after-write) instead of anti_dependence as
it wants to test whether the write i
