Loop optimizer issues

[law@redhat.com]

In message <20030702211618.GA26127@atrey.karlin.mff.cuni.cz>, Zdenek Dvorak wri
tes:
 >Hello,
 >
 >> >> > just for sure -- nobody will protest if I drop handling of libcalls
 >> >> > in new loop optimizer? This definitely should not be neccesary to hand
 >le
 >> >> > on rtl level.
 >> >> 
 >> >> How do you plan to handle ports where multiplication or addition
 >> >> requires a libcall?
 >> 
 >> Zdenek> in no special way.  The optimizations done on ast level would then 
 >have
 >> Zdenek> higher priority for optimizing them when possible.
 >> 
 >> 	Does "new loop optimizer" refer to a revision to the RTL loop
 >> optimizer or a re-write of the loop optimizer in the Tree-SSA
 >> infrastructure?
 >
 >rtl one.
 >
 >> LIBCALLs should not be present in GIMPLE, should they?
 >
 >I hope so; this is exactly why I would prefer to handle things there
 >rather than figting it later in rtl.
There are no libcalls in gimple.

jeff