On 25-02-13 20:53, Marek Polacek wrote:
2013-02-25 Marek Polacek
PR tree-optimization/56426
* tree-ssa-loop.c (tree_ssa_loop_init): Always call
scev_initialize.
* gcc.dg/pr56436.c: New test.
--- gcc/tree-ssa-loop.c.mp 2013-02-25 13:06:47.212132327 +0100
On Mon, 25 Feb 2013, Steven Bosscher wrote:
> On Mon, Feb 25, 2013 at 8:53 PM, Marek Polacek wrote:
> > This fixes PR56426. We were ICEing during the loop pipeline,
> > because copyprop changed an irreducible region into a reducible - thus
> > the number_of_loops grew.
>
> We've seen that kind o
On Mon, 25 Feb 2013, Marek Polacek wrote:
> This fixes PR56426. We were ICEing during the loop pipeline,
> because copyprop changed an irreducible region into a reducible - thus
> the number_of_loops grew. Firstly, in tree_ssa_loop_init, number_of_loops
> was == 1, which means we didn't initiali
On Mon, Feb 25, 2013 at 09:01:17PM +0100, Steven Bosscher wrote:
> On Mon, Feb 25, 2013 at 8:53 PM, Marek Polacek wrote:
> > This fixes PR56426. We were ICEing during the loop pipeline,
> > because copyprop changed an irreducible region into a reducible - thus
> > the number_of_loops grew.
>
> We
On Mon, Feb 25, 2013 at 8:53 PM, Marek Polacek wrote:
> This fixes PR56426. We were ICEing during the loop pipeline,
> because copyprop changed an irreducible region into a reducible - thus
> the number_of_loops grew.
We've seen that kind of thing happen before with the tracer pass. It
makes me w
