https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114978
--- Comment #22 from chenglulu <chenglulu at loongson dot cn> --- (In reply to Xi Ruoyao from comment #21) > (In reply to chenglulu from comment #19) > > diff --git a/gcc/config/loongarch/loongarch.cc > > b/gcc/config/loongarch/loongarch.cc > > index e7835ae34ae..6a808cb0a5c 100644 > > --- a/gcc/config/loongarch/loongarch.cc > > +++ b/gcc/config/loongarch/loongarch.cc > > @@ -2383,7 +2383,7 @@ loongarch_address_insns (rtx x, machine_mode mode, > > bool might_split_p) > > return factor; > > > > case ADDRESS_REG_REG: > > - return factor; > > + return factor * 3; > > > > case ADDRESS_CONST_INT: > > return lsx_p ? 0 : factor; > > > > With this patch, -march=la464 has a score of 11.9. > > However, the specific revision plan has not yet been decided. > > Hmm are ldx and stx really so slow? I think it's more like it's because LDX/STX uses an extra register.
