8353638: C2: deoptimization and re-execution cycle with StringBuilder

Reviewed-by: thartmann, chagedorn

Author: marc-chevalier

src/hotspot/share/opto/runtime.cpp

@@ -2037,7 +2037,7 @@ static const TypeFunc* make_rethrow_Type() {
 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread, bool doit) {
   // Deoptimize the caller before continuing, as the compiled
   // exception handler table may not be valid.
-  if (!StressCompiledExceptionHandlers && doit) {
+  if (DeoptimizeOnAllocationException && doit) {
     deoptimize_caller_frame(thread);
   }
 }

src/hotspot/share/runtime/globals.hpp

@@ -650,6 +650,10 @@ const int ObjectAlignmentInBytes = 8;
   develop(bool, StressCompiledExceptionHandlers, false,                     \
           "Exercise compiled exception handlers")                           \
                                                                             \
+  product(bool, DeoptimizeOnAllocationException, false, DIAGNOSTIC,         \
+          "Deoptimize on exception during allocation instead of using the " \
+          "compiled exception handlers")                                    \
+                                                                            \
   develop(bool, InterceptOSException, false,                                \
           "Start debugger when an implicit OS (e.g. null pointer) "         \
           "exception happens")                                              \