https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91898
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-09-25
Component|tree-optimization |rtl-optimization
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
switches sometimes end up as decision tree - that's also not too good to
capture
common state transitions. So eventually detecting the "pattern" might help
deciding between a jump-table and a decision tree as well.
Confirmed. Only applies to the jump-table variant.
It's also more RTL than GIMPLE level optimization since jump-tables
only appear during RTL expansion.
