https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96542
Andrew Macleod <amacleod at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #8 from Andrew Macleod <amacleod at redhat dot com> ---
Range-ops uses wi_fold (implemented by each opcode) to individually
fold subranges one at a time and then combines them. This patch first
calls wi_fold_in_parts which checks if one of the subranges is small,
and if so, further splits that subrange into constants.
Currently, if a subrange is 4 or less values, then we call it
individually for each of the 4 values. 4 was chosen as a reasonable
tradeoff between excess work vs benefit.
this gets all 3 cases now.
fixed
