8311588: C2: RepeatCompilation compiler directive does not choose stress seed randomly

Backport-of: 3465179458d844fec4d0496aa3d0c31b34c4c345

Author: elifaslan1

src/hotspot/share/opto/compile.cpp

@@ -775,7 +775,7 @@ Compile::Compile( ciEnv* ci_env, ciMethod* target, int osr_bci,
   // If any phase is randomized for stress testing, seed random number
   // generation and log the seed for repeatability.
   if (StressLCM || StressGCM || StressIGVN || StressCCP) {
-    if (FLAG_IS_DEFAULT(StressSeed) || (FLAG_IS_ERGO(StressSeed) && RepeatCompilation)) {
+    if (FLAG_IS_DEFAULT(StressSeed) || (FLAG_IS_ERGO(StressSeed) && directive->RepeatCompilationOption)) {
       _stress_seed = static_cast<uint>(Ticks::now().nanoseconds());
       FLAG_SET_ERGO(StressSeed, _stress_seed);
     } else {