Re: Improve byte-wise DSE (modref-dse-[45].c failures)

2021-11-23 Thread Richard Biener via Gcc-patches
On Tue, Nov 23, 2021 at 8:26 AM Jan Hubicka via Gcc-patches wrote: > > Hi, > testcase modref-dse-4.c and modref-dse-5.c fails on some targets because they > depend on store merging. What really happens is that without store merging > we produce for kill_me combined write that is ao_ref with

Improve byte-wise DSE (modref-dse-[45].c failures)

2021-11-22 Thread Jan Hubicka via Gcc-patches
Hi, testcase modref-dse-4.c and modref-dse-5.c fails on some targets because they depend on store merging. What really happens is that without store merging we produce for kill_me combined write that is ao_ref with offset=0, size=32 and max_size=96. We have size != max_size becaue we do ont