[Bug tree-optimization/66119] [5/6 Regression] in optimization of avx-code

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66119

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
DEFPARAM (PARAM_SRA_MAX_SCALARIZATION_SIZE_SPEED,
          "sra-max-scalarization-size-Ospeed",
          "Maximum size, in storage units, 

storage units!  But the value seems to be in bits?  It gets used as

            if (tree_to_uhwi (TYPE_SIZE (TREE_TYPE (var)))
                <= max_scalarization_size)

max_scalarization_size is 384, the aggregate size is 512.

Looks like get_move_ratio returns different things at SRA time (if I re-call
it)
and the time it gets invoked in toplev.c.