On Mon, Sep 12, 2022 at 11:47:47AM -0500, Segher Boessenkool wrote:
> On Mon, Sep 12, 2022 at 12:40:31AM +0100, Roger Sayle wrote:
> > * gcc/combine.cc (expand_compound_operation): Don't expand/transform
> > ZERO_EXTEND or SIGN_EXTEND on targets where rtx_cost claims they are
> >
Hi!
On Mon, Sep 12, 2022 at 12:40:31AM +0100, Roger Sayle wrote:
> * gcc/combine.cc (expand_compound_operation): Don't expand/transform
> ZERO_EXTEND or SIGN_EXTEND on targets where rtx_cost claims they are
> cheap. If gen_lowpart returns a SUBREG of something other than a
"Roger Sayle" writes:
> Hi Richard,
>
>> "Roger Sayle" writes:
>> > This patch addresses PR rtl-optimization/106594, a significant
>> > performance regression affecting aarch64 recently introduced (exposed)
>> > by one of my recent RTL simplification improvements. Firstly many
>> > thanks to Tam
Hi Richard,
> "Roger Sayle" writes:
> > This patch addresses PR rtl-optimization/106594, a significant
> > performance regression affecting aarch64 recently introduced (exposed)
> > by one of my recent RTL simplification improvements. Firstly many
> > thanks to Tamar Christina for confirming t
"Roger Sayle" writes:
> This patch addresses PR rtl-optimization/106594, a significant performance
> regression affecting aarch64 recently introduced (exposed) by one of my
> recent RTL simplification improvements. Firstly many thanks to
> Tamar Christina for confirming that the core of this patc
This patch addresses PR rtl-optimization/106594, a significant performance
regression affecting aarch64 recently introduced (exposed) by one of my
recent RTL simplification improvements. Firstly many thanks to
Tamar Christina for confirming that the core of this patch provides ~5%
performance imp
