[PATCH] Fix typo in try_peel_loop

[Pat Haugen]

I observed the odd looking code while looking into something else and confirmed 
prior behavior (before r248863) was to sum the counts of the non-latch 
predecessors of the loop (in order to scale the loop such that it no longer 
appears to iterate).

Bootstrap/regtest on powerpc64le with no regressions. Committed as obvious.

-Pat


2018-10-31  Pat Haugen  <pthau...@us.ibm.com>

        * tree-ssa-loop-ivcanon.c (try_peel_loop): Fix typo and remove dead
        initialization.


Index: gcc/tree-ssa-loop-ivcanon.c
===================================================================
--- gcc/tree-ssa-loop-ivcanon.c (revision 264821)
+++ gcc/tree-ssa-loop-ivcanon.c (working copy)
@@ -1139,10 +1139,10 @@ try_peel_loop (struct loop *loop,
     if (e->src != loop->latch)
       {
        if (e->src->count.initialized_p ())
-         entry_count = e->src->count + e->src->count;
+         entry_count += e->src->count;
        gcc_assert (!flow_bb_inside_loop_p (loop, e->src));
       }
-  profile_probability p = profile_probability::very_unlikely ();
+  profile_probability p;
   p = entry_count.probability_in (loop->header->count);
   scale_loop_profile (loop, p, 0);
   bitmap_set_bit (peeled_loops, loop->num);