I am testing the following patch to fix PR69983 - SCEV was confused
by a PRE inserted PHI node where it checks for equality of the
evolution of all edges. After my SCEV fix these have conversions
which are not handled by eq_evolutions_p.
I've noticed the function misses any type compatibility ch
On Mon, 29 Feb 2016, Jakub Jelinek wrote:
> On Mon, Feb 29, 2016 at 04:26:12PM +0100, Richard Biener wrote:
> > *** get_unary_op (tree name, enum tree_code
> > *** 621,626
> > --- 641,680
> > return NULL_TREE;
> > }
> >
> > + /* Return true if OP1 and OP2 have the sa
On Mon, Feb 29, 2016 at 04:26:12PM +0100, Richard Biener wrote:
> *** get_unary_op (tree name, enum tree_code
> *** 621,626
> --- 641,680
> return NULL_TREE;
> }
>
> + /* Return true if OP1 and OP2 have the same value if casted to either type.
> */
> +
> + static b
This fixes fallout of my SCEV correctness change where reassoc no longer
sees the ~A + A simplification opportunity due to casts that are in the
way.
Bootstrapped and tested on x86_64-unknown-linux-gnu, applied.
Richard.
2016-02-29 Richard Biener
PR tree-optimization/69994
