8257232: CompileThresholdScaling fails to work on 32-bit platforms

Reviewed-by: kvn, redestad

src/hotspot/share/compiler/compilerDefinitions.cpp

@@ -119,13 +119,17 @@ intx CompilerConfig::scaled_freq_log(intx freq_log, double scale) {
   // max_freq_bits accordingly.
   intx max_freq_bits = InvocationCounter::number_of_count_bits + 1;
   intx scaled_freq = scaled_compile_threshold((intx)1 << freq_log, scale);
+
   if (scaled_freq == 0) {
     // Return 0 right away to avoid calculating log2 of 0.
     return 0;
-  } else if (scaled_freq > nth_bit(max_freq_bits)) {
-    return max_freq_bits;
   } else {
-    return log2_intptr(scaled_freq);
+    intx res = log2_intptr(scaled_freq);
+    if (res > max_freq_bits) {
+      return max_freq_bits;
+    } else {
+      return res;
+    }
   }
 }