Richard Biener writes:
> On Mon, 27 Jan 2025, Jakub Jelinek wrote:
>
>> On Mon, Jan 27, 2025 at 11:09:38AM +0100, Richard Biener wrote:
>> >PR rtl-optimization/118662
>> >* combine.cc (try_combine): When re-materializing a load
>> >from an extended reg by a lowpart subreg make sure we'
On Mon, 27 Jan 2025, Jakub Jelinek wrote:
> On Mon, Jan 27, 2025 at 11:09:38AM +0100, Richard Biener wrote:
> > PR rtl-optimization/118662
> > * combine.cc (try_combine): When re-materializing a load
> > from an extended reg by a lowpart subreg make sure we're
> > dealing with sing
On Mon, Jan 27, 2025 at 11:09:38AM +0100, Richard Biener wrote:
> PR rtl-optimization/118662
> * combine.cc (try_combine): When re-materializing a load
> from an extended reg by a lowpart subreg make sure we're
> dealing with single-component modes.
>
> * gcc.dg/tortu
The following fixes an issue in the RTL combiner where we correctly
combine two vector sign-exxtends with a vector load
Trying 7, 9 -> 10:
7: r106:V4QI=[r119:DI]
REG_DEAD r119:DI
9: r108:V4HI=sign_extend(vec_select(r106:V4QI#0,parallel))
10: r109:V4SI=sign_extend(vec_select(r108:V
