https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79282
--- Comment #7 from Vladimir Makarov <vmakarov at gcc dot gnu.org> --- (In reply to Vladimir Makarov from comment #6) > I think changing pattern > > &r(1) = 0(2), r(3) > > to > > r(1) = 0(2), r(3) > > would be a right solution on the target side. The operand 1 can not > get the same hard register as input operands or other early clobbered > output operands because it should be the same as operand 2 which > already can not be assigned to the same hard reg as other input and > early clobber output operands. > > Sorry, It will not work. I missed the case when operand 2 and 3 is the same pseudo. In this case we can not just remove early clobber flag '&'. OK, I'll try to implement fix in LRA. But it might take 1-2 weeks.
