move the changes in flag constraints specific file

Author: offamitkumar

src/hotspot/share/code/codeCache.cpp

@@ -1106,9 +1106,6 @@ size_t CodeCache::freelists_length() {
 void icache_init();
 
 void CodeCache::initialize() {
-  if (!is_power_of_2(CodeCacheSegmentSize)) {
-    vm_exit_during_initialization(err_msg("CodeCacheSegmentSize should be a power of 2"));
-  }
   assert(CodeCacheSegmentSize >= (uintx)CodeEntryAlignment, "CodeCacheSegmentSize must be large enough to align entry points");
 #ifdef COMPILER2
   assert(CodeCacheSegmentSize >= (uintx)OptoLoopAlignment,  "CodeCacheSegmentSize must be large enough to align inner loops");

src/hotspot/share/runtime/flags/jvmFlagConstraintsCompiler.cpp

@@ -156,6 +156,13 @@ JVMFlag::Error OnStackReplacePercentageConstraintFunc(intx value, bool verbose)
 }
 
 JVMFlag::Error CodeCacheSegmentSizeConstraintFunc(uintx value, bool verbose) {
+  if (!is_power_of_2(value)) {
+    JVMFlag::printError(verbose,
+                        "CodeCacheSegmentSize (%zd) must be "
+                        "a power of two\n", CodeCacheSegmentSize);
+    return JVMFlag::VIOLATES_CONSTRAINT;
+  }
+
   if (CodeCacheSegmentSize < (uintx)CodeEntryAlignment) {
     JVMFlag::printError(verbose,
                         "CodeCacheSegmentSize  (%zu) must be "