https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48609
--- Comment #6 from Hongtao.liu <crazylht at gmail dot com> ---
(In reply to Hongtao.liu from comment #5)
> (In reply to Andrew Pinski from comment #2)
> > Confirmed, In this case, it is a middle-end issue, I suspect if we used
> > V2SFmode for the incoming argument, it might work better. Right now we
> Yes, under TAREGT_SSE2 and TARGET_64BIT, we support movv2sf, i think it's
> reasonable to use V2SFmode instead of DImode as incoming argument mode for
> SCmode.
Doesn't help here
foo:
.LFB0:
.cfi_startproc
movlps %xmm0, -8(%rsp) # 3 [c=4 l=5] *movv2sf_internal/14
movss -8(%rsp), %xmm0 # 16 [c=8 l=6] *movsf_internal/7
movss %xmm0, bar(%rip) # 11 [c=4 l=8] *movsf_internal/8
movss -4(%rsp), %xmm0 # 17 [c=8 l=6] *movsf_internal/7
movss %xmm0, bar+4(%rip) # 12 [c=4 l=8] *movsf_internal/8
ret # 21 [c=0 l=1] simple_return_internal
