On Mon, Feb 12, 2018 at 03:59:05PM +, Segher Boessenkool wrote:
> 2018-02-12 Segher Boessenkool
>
> PR rtl-optimization/84169
> * combine.c (try_combine): New variable split_i2i3. Set it to true if
> we generated a parallel as new i3 and we split that to new i2 and i3
>
On Mon, Feb 12, 2018 at 05:12:20PM +0100, Jakub Jelinek wrote:
> On Mon, Feb 12, 2018 at 03:59:05PM +, Segher Boessenkool wrote:
> > If there is a LOG_LINK between two insns, this means those two insns
> > can be combined, as far as dataflow is concerned. There never should
> > be a LOG_LINK b
On Mon, Feb 12, 2018 at 03:59:05PM +, Segher Boessenkool wrote:
> If there is a LOG_LINK between two insns, this means those two insns
> can be combined, as far as dataflow is concerned. There never should
> be a LOG_LINK between two unrelated insns. If there is one, combine
> will try to com
On Mon, Feb 12, 2018 at 05:12:20PM +0100, Jakub Jelinek wrote:
> On Mon, Feb 12, 2018 at 03:59:05PM +, Segher Boessenkool wrote:
> > If there is a LOG_LINK between two insns, this means those two insns
> > can be combined, as far as dataflow is concerned. There never should
> > be a LOG_LINK b
If there is a LOG_LINK between two insns, this means those two insns
can be combined, as far as dataflow is concerned. There never should
be a LOG_LINK between two unrelated insns. If there is one, combine
will try to combine the insns without doing all the needed checks if
the earlier destinatio
