https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115146
--- Comment #5 from Levy Hsu <admin at levyhsu dot com> ---
switch (d->vmode)
{
case E_V8QImode:
if (!TARGET_MMX_WITH_SSE)
return false;
mode = V4HImode;
gen_shr = gen_ashrv4hi3(should be gen_lshrv4hi3);
gen_shl = gen_ashlv4hi3;
gen_or = gen_iorv4hi3;
break;
case E_V16QImode:
mode = V8HImode;
gen_shr = gen_vlshrv8hi3;
gen_shl = gen_vashlv8hi3;
gen_or = gen_iorv8hi3;
break;
default: return false;
}
Obviously, under V8QImode it should be gen_lshrv4hi3 instead of gen_ashrv4hi3.
I mistakenly used gen_ashrv4hi3 due to the similar naming conventions and
failed to find out. gen_lshrv4hi3 is the correct logical shift needed.
Will send a patch soon
