On 07/12/2021 11:45, Richard Biener wrote:
Can you check whether, give we know the main VF, the epilogue analysis
does not start with am autodetected vector mode that needs a too large VF?
Hmm struggling to see how we could check this here. AFAIU before we
analyze the loop for a given vector mode we won't know the VF? Are you
saying that we could reject an autodetected mode which NUNITS > main VF
for !LOOP_VINFO_EPIL_USING_PARTIAL_VECTORS_P? An by reject I mean we'd
start with mode_i = 1.
Or did I misunderstand something here.
FWIW this is just to prevent extra analysis right? If the epilogue's VF
isn't appropriate it will be rejected later.
