8288112: C2: Error: ShouldNotReachHere() in Type::typerr()

Reviewed-by: dlong, kvn

test/micro/org/openjdk/bench/java/lang/Integers.java

@@ -56,6 +56,7 @@ public class Integers {
     private int[] intsTiny;
     private int[] intsSmall;
     private int[] intsBig;
+    private int[] res;
 
     @Setup
     public void setup() {
@@ -64,6 +65,7 @@ public class Integers {
         intsTiny  = new int[size];
         intsSmall = new int[size];
         intsBig   = new int[size];
+        res       = new int[size];
         for (int i = 0; i < size; i++) {
             strings[i] = "" + (r.nextInt(10000) - (5000));
             intsTiny[i] = r.nextInt(99);
@@ -146,4 +148,11 @@ public class Integers {
             bh.consume(intsBig[i] << intsSmall[i]);
         }
     }
+
+    @Benchmark
+    public void reverseBytes() {
+        for (int i = 0; i < size; i++) {
+            res[i] = Integer.reverseBytes(intsSmall[i]);
+        }
+    }
 }