Hi Jeff, On Sun, 2020-05-31 at 11:20 -0600, Jeff Law via Gcc-patches wrote: > > The peephole2 pass makes some attempt to update various notes, but that > doesn't > include REG_INC notes. While I could trivially fix this in the H8 port, I > wouldn't be terribly surprised if the lack of a REG_INC note could cause > problems > on other ports. So I think it's best to fix in the peephole pass. > > As it turns out we already have a function (two copies even!) to scan an insn > for auto-inc addressing modes and add an appropriate note. > > This patch moves that code from reload & lra into rtlanal.c and calls it from > the > peephole pass.
I ran into this issue a while ago. See also config/sh/sh.c, function sh_check_add_incdec_notes. Is it possible to somehow fold all that into a universal solution? Cheers, Oleg
