--- old/src/share/vm/runtime/commandLineFlagConstraintList.cpp	2015-07-17 15:47:00.258799834 -0700
+++ new/src/share/vm/runtime/commandLineFlagConstraintList.cpp	2015-07-17 15:47:00.142799831 -0700
@@ -39,7 +39,9 @@
 
 public:
   // the "name" argument must be a string literal
-  CommandLineFlagConstraint_bool(const char* name, CommandLineFlagConstraintFunc_bool func) : CommandLineFlagConstraint(name) {
+  CommandLineFlagConstraint_bool(const char* name,
+                                 CommandLineFlagConstraintFunc_bool func,
+                                 ConstraintType type) : CommandLineFlagConstraint(name, type) {
     _constraint=func;
   }
 
@@ -53,7 +55,9 @@
 
 public:
   // the "name" argument must be a string literal
-  CommandLineFlagConstraint_int(const char* name, CommandLineFlagConstraintFunc_int func) : CommandLineFlagConstraint(name) {
+  CommandLineFlagConstraint_int(const char* name,
+                                CommandLineFlagConstraintFunc_int func,
+                                ConstraintType type) : CommandLineFlagConstraint(name, type) {
     _constraint=func;
   }
 
@@ -67,7 +71,9 @@
 
 public:
   // the "name" argument must be a string literal
-  CommandLineFlagConstraint_intx(const char* name, CommandLineFlagConstraintFunc_intx func) : CommandLineFlagConstraint(name) {
+  CommandLineFlagConstraint_intx(const char* name,
+                                 CommandLineFlagConstraintFunc_intx func,
+                                 ConstraintType type) : CommandLineFlagConstraint(name, type) {
     _constraint=func;
   }
 
@@ -81,7 +87,9 @@
 
 public:
   // the "name" argument must be a string literal
-  CommandLineFlagConstraint_uint(const char* name, CommandLineFlagConstraintFunc_uint func) : CommandLineFlagConstraint(name) {
+  CommandLineFlagConstraint_uint(const char* name,
+                                 CommandLineFlagConstraintFunc_uint func,
+                                 ConstraintType type) : CommandLineFlagConstraint(name, type) {
     _constraint=func;
   }
 
@@ -95,7 +103,9 @@
 
 public:
   // the "name" argument must be a string literal
-  CommandLineFlagConstraint_uintx(const char* name, CommandLineFlagConstraintFunc_uintx func) : CommandLineFlagConstraint(name) {
+  CommandLineFlagConstraint_uintx(const char* name,
+                                  CommandLineFlagConstraintFunc_uintx func,
+                                  ConstraintType type) : CommandLineFlagConstraint(name, type) {
     _constraint=func;
   }
 
@@ -109,7 +119,9 @@
 
 public:
   // the "name" argument must be a string literal
-  CommandLineFlagConstraint_uint64_t(const char* name, CommandLineFlagConstraintFunc_uint64_t func) : CommandLineFlagConstraint(name) {
+  CommandLineFlagConstraint_uint64_t(const char* name,
+                                     CommandLineFlagConstraintFunc_uint64_t func,
+                                     ConstraintType type) : CommandLineFlagConstraint(name, type) {
     _constraint=func;
   }
 
@@ -123,7 +135,9 @@
 
 public:
   // the "name" argument must be a string literal
-  CommandLineFlagConstraint_size_t(const char* name, CommandLineFlagConstraintFunc_size_t func) : CommandLineFlagConstraint(name) {
+  CommandLineFlagConstraint_size_t(const char* name,
+                                   CommandLineFlagConstraintFunc_size_t func,
+                                   ConstraintType type) : CommandLineFlagConstraint(name, type) {
     _constraint=func;
   }
 
@@ -137,7 +151,9 @@
 
 public:
   // the "name" argument must be a string literal
-  CommandLineFlagConstraint_double(const char* name, CommandLineFlagConstraintFunc_double func) : CommandLineFlagConstraint(name) {
+  CommandLineFlagConstraint_double(const char* name,
+                                   CommandLineFlagConstraintFunc_double func,
+                                   ConstraintType type) : CommandLineFlagConstraint(name, type) {
     _constraint=func;
   }
 
@@ -161,30 +177,47 @@
 void emit_constraint_size_t(const char* /*name*/)     { /* NOP */ }
 void emit_constraint_double(const char* /*name*/)     { /* NOP */ }
 
+CommandLineFlagConstraint::ConstraintType CommandLineFlagConstraint::change_to_enum(const char* type) {
+  static const char* const atParse_str         = "AtParse";
+  static const char* const afterErgo_str       = "AfterErgo";
+  static const char* const afterMemoryInit_str = "AfterMemoryInit";
+
+  if (strncmp(type, afterErgo_str, 9) == 0 && type[9] == '\0') {
+    return CommandLineFlagConstraint::AfterErgo;
+  } else if (strncmp(type, afterMemoryInit_str, 15) == 0 && type[15] == '\0') {
+    return CommandLineFlagConstraint::AfterMemoryInit;
+  } else if (strncmp(type, atParse_str, 7) == 0 && type[7] == '\0') {
+    return CommandLineFlagConstraint::AtParse;
+  } else {
+    ShouldNotReachHere();
+    return CommandLineFlagConstraint::AfterMemoryInit;
+  }
+}
+
 // CommandLineFlagConstraint emitting code functions if function argument is provided
-void emit_constraint_bool(const char* name, CommandLineFlagConstraintFunc_bool func) {
-  CommandLineFlagConstraintList::add(new CommandLineFlagConstraint_bool(name, func));
+void emit_constraint_bool(const char* name, CommandLineFlagConstraintFunc_bool func, const char* type) {
+  CommandLineFlagConstraintList::add(new CommandLineFlagConstraint_bool(name, func, CommandLineFlagConstraint::change_to_enum(type)));
 }
-void emit_constraint_int(const char* name, CommandLineFlagConstraintFunc_int func) {
-  CommandLineFlagConstraintList::add(new CommandLineFlagConstraint_int(name, func));
+void emit_constraint_int(const char* name, CommandLineFlagConstraintFunc_int func, const char* type) {
+  CommandLineFlagConstraintList::add(new CommandLineFlagConstraint_int(name, func, CommandLineFlagConstraint::change_to_enum(type)));
 }
-void emit_constraint_intx(const char* name, CommandLineFlagConstraintFunc_intx func) {
-  CommandLineFlagConstraintList::add(new CommandLineFlagConstraint_intx(name, func));
+void emit_constraint_intx(const char* name, CommandLineFlagConstraintFunc_intx func, const char* type) {
+  CommandLineFlagConstraintList::add(new CommandLineFlagConstraint_intx(name, func, CommandLineFlagConstraint::change_to_enum(type)));
 }
-void emit_constraint_uint(const char* name, CommandLineFlagConstraintFunc_uint func) {
-  CommandLineFlagConstraintList::add(new CommandLineFlagConstraint_uint(name, func));
+void emit_constraint_uint(const char* name, CommandLineFlagConstraintFunc_uint func, const char* type) {
+  CommandLineFlagConstraintList::add(new CommandLineFlagConstraint_uint(name, func, CommandLineFlagConstraint::change_to_enum(type)));
 }
-void emit_constraint_uintx(const char* name, CommandLineFlagConstraintFunc_uintx func) {
-  CommandLineFlagConstraintList::add(new CommandLineFlagConstraint_uintx(name, func));
+void emit_constraint_uintx(const char* name, CommandLineFlagConstraintFunc_uintx func, const char* type) {
+  CommandLineFlagConstraintList::add(new CommandLineFlagConstraint_uintx(name, func, CommandLineFlagConstraint::change_to_enum(type)));
 }
-void emit_constraint_uint64_t(const char* name, CommandLineFlagConstraintFunc_uint64_t func) {
-  CommandLineFlagConstraintList::add(new CommandLineFlagConstraint_uint64_t(name, func));
+void emit_constraint_uint64_t(const char* name, CommandLineFlagConstraintFunc_uint64_t func, const char* type) {
+  CommandLineFlagConstraintList::add(new CommandLineFlagConstraint_uint64_t(name, func, CommandLineFlagConstraint::change_to_enum(type)));
 }
-void emit_constraint_size_t(const char* name, CommandLineFlagConstraintFunc_size_t func) {
-  CommandLineFlagConstraintList::add(new CommandLineFlagConstraint_size_t(name, func));
+void emit_constraint_size_t(const char* name, CommandLineFlagConstraintFunc_size_t func, const char* type) {
+  CommandLineFlagConstraintList::add(new CommandLineFlagConstraint_size_t(name, func, CommandLineFlagConstraint::change_to_enum(type)));
 }
-void emit_constraint_double(const char* name, CommandLineFlagConstraintFunc_double func) {
-  CommandLineFlagConstraintList::add(new CommandLineFlagConstraint_double(name, func));
+void emit_constraint_double(const char* name, CommandLineFlagConstraintFunc_double func, const char* type) {
+  CommandLineFlagConstraintList::add(new CommandLineFlagConstraint_double(name, func, CommandLineFlagConstraint::change_to_enum(type)));
 }
 
 // Generate code to call emit_constraint_xxx function
@@ -201,11 +234,12 @@
 #define EMIT_CONSTRAINT_LP64_PRODUCT_FLAG(type, name, value, doc) ); emit_constraint_##type(#name
 
 // Generate func argument to pass into emit_constraint_xxx functions
-#define EMIT_CONSTRAINT_CHECK(func)                               , func
+#define EMIT_CONSTRAINT_CHECK(func, type)                               , func, #type
 
 // the "name" argument must be a string literal
 #define INITIAL_CONTRAINTS_SIZE 16
 GrowableArray<CommandLineFlagConstraint*>* CommandLineFlagConstraintList::_constraints = NULL;
+CommandLineFlagConstraint::ConstraintType CommandLineFlagConstraintList::_validating_type = CommandLineFlagConstraint::AtParse;
 
 // Check the ranges of all flags that have them or print them out and exit if requested
 void CommandLineFlagConstraintList::init(void) {
@@ -273,11 +307,13 @@
 #endif // INCLUDE_ALL_GCS
 }
 
-CommandLineFlagConstraint* CommandLineFlagConstraintList::find(const char* name) {
+// Find constraints by name and return only if found constraint's type is equal or lower than current validating type.
+CommandLineFlagConstraint* CommandLineFlagConstraintList::find_if_needs_check(const char* name) {
   CommandLineFlagConstraint* found = NULL;
   for (int i=0; i<length(); i++) {
     CommandLineFlagConstraint* constraint = at(i);
-    if (strcmp(constraint->name(), name) == 0) {
+    if ((strcmp(constraint->name(), name) == 0) &&
+        (constraint->type() <= _validating_type)) {
       found = constraint;
       break;
     }