https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114556
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
Last reconfirmed| |2024-04-03
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
without the align:
Inserting a partition copy on edge BB2->BB3 : PART.0 = PART.3
Inserting a value copy on edge BB2->BB3 : PART.1 = 2048
vs with:
Inserting a partition copy on edge BB3->BB3 : PART.7 = PART.0
Inserting a partition copy on edge BB2->BB3 : PART.7 = PART.3
Inserting a value copy on edge BB2->BB3 : PART.1 = 2048
Basically out of ssa is doing an extra move because it could not "merge" the
loop induction variable for the (vector) addition due to the different
alignment requirements ...
And then things go down hill from there.
