src/share/vm/gc/cms/concurrentMarkSweepGeneration.cpp

rev 9088 : 8139040: Fix initializations before ShouldNotReachHere() etc. and enable -Wuninitialized on linux.
Reviewed-by: stuefe, coleenp

@@ -1793,11 +1793,11 @@
     gch->increment_total_full_collections();  // ... starting a collection cycle
     _collection_count_start = gch->total_full_collections();
   }
 
   // Used for PrintGC
-  size_t prev_used;
+  size_t prev_used = 0;
   if (PrintGC && Verbose) {
     prev_used = _cmsGen->used();
   }
 
   // The change of the collection state is normally done at this level;

@@ -7726,11 +7726,11 @@
     gclog_or_tty->print_cr("  -- pick up another chunk at " PTR_FORMAT " (" SIZE_FORMAT ")", p2i(fc), chunkSize);
   }
 
   HeapWord* const fc_addr = (HeapWord*) fc;
 
-  bool coalesce;
+  bool coalesce = false;
   const size_t left  = pointer_delta(fc_addr, freeFinger());
   const size_t right = chunkSize;
   switch (FLSCoalescePolicy) {
     // numeric value forms a coalition aggressiveness metric
     case 0:  { // never coalesce