giving it a non-instruction opcode. The dag->dag selector used to not
select the operands of the fsel, because it thought that whole tree was
already selected.
llvm-svn: 23091
instead of in the backend. This currently handles fsel cases with registers,
but doesn't have the 0.0 and -0.0 optimization enabled yet.
Once this is finished, special hack for fp immediates can go away.
llvm-svn: 23075
Chris Lattner