Predicates for RTL objects

[nathan bullock]

Third try is the charm?

I just did a grep through the patch file to get all the files I changed.

(Sorry Daniel Berlin for the stray email I just sent to you. Oops.)

2006-02-04  Nathan Bullock  <nathanbullock@gmail.com>

     * rtl.h: Added predicates PLUS_P, MINUS_P, CONST_INT_P
                CONST_DOUBLE_P, PARALLEL_P.
     * alias.c, bb-reorder.c, bt-load.c, builtins.c, calls.c, cfgcleanup.c,
         cfgrtl.c, combine.c, cse.c, cselib.c, dbxout.c, df-scan.c,
         dojump.c, dwarf2asm.c, dwarf2out.c, emit-rtl.c, explow.c,
         expmed.c ,expr.c, final.c, flow.c, function.c, gcse.c, genemit.c,
         genpeep.c. genrecog.c, global.c, haifa-sched.c, ifcvt.c, jump.c,
         local-alloc.c, loop-doloop.c, loop-iv.c, loop-unroll.c, loop.c,
         modulo-sched.c, optabs.c, postreload.c, predict.c, print-rtl.c,
         recog.c, reg-stack.c, regclass.c, regmove.c, reload.c, reload1.c,
         reorg.c, rtl-error.c, rtl.c, rtlanal.c, sched-deps.c, sched-rgn.c,
         sched-vis.c, sdbout.c, simplify-rtx.c, stmt.c, struct-equiv.c,
         var-tracking.c, varasm.c, vmsdbgout.c: