https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89049
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
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CC|segher at gcc dot gnu.org |
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
From a quick look rtx_cost should end up recursing to the MEM. Oh.
targetm.rtx_costs is expected to handle sub-costs but does
case VEC_SELECT:
case VEC_CONCAT:
case VEC_DUPLICATE:
/* ??? Assume all of these vector manipulation patterns are
recognizable. In which case they all pretty much have the
same cost. */
*total = cost->sse_op;
return true;
which is of course bogus for patterns involving MEMs (new possibility with
AVX). Not combines issue.
