[committed] Fix unnecessary -Wnarrowing warning in predict.c

[Jakub Jelinek]

Hi!

branch_predictor::probability has int type, so using -1U produces
-Wnarrowing warning.

Fixed thusly, committed as obvious to trunk.

2018-03-02  Jakub Jelinek  <ja...@redhat.com>

        * predict.c (test_prediction_value_range): Use PROB_UNINITIALIZED
        instead of -1U in last predictors element's probability member.

--- gcc/predict.c.jj    2018-01-26 12:43:25.139922494 +0100
+++ gcc/predict.c       2018-03-02 15:24:21.735715210 +0100
@@ -4204,7 +4204,7 @@ test_prediction_value_range ()
 {
   branch_predictor predictors[] = {
 #include "predict.def"
-    {NULL, -1U}
+    { NULL, PROB_UNINITIALIZED }
   };
 
   for (unsigned i = 0; predictors[i].name != NULL; i++)

        Jakub