Andreas Schwab <sch...@suse.de> writes: > On Jan 27 2020, Richard Sandiford wrote: > >> * simplify-rtx.c (simplify_truncation): Extend sign/zero_extract >> simplification to handle subregs as well as bare regs. > > That breaks gcc.target/m68k/pr39726.c
Gah. Jeff pointed out off-list that it also broke gcc.target/sh/pr64345-1.c on sh3-linux-gnu. It didn't look like either of them would be fixable in an acceptably non-invasive and unhacky way, so I've reverted the patch "for now". Thanks, Richard
