8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
Reviewed-by: kvn, vlivanov
--- a/hotspot/src/share/vm/classfile/classLoader.cpp Wed Sep 11 09:34:00 2013 +0200
+++ b/hotspot/src/share/vm/classfile/classLoader.cpp Thu Sep 12 14:53:44 2013 -0700
@@ -1319,6 +1319,25 @@
// The CHECK at the caller will propagate the exception out
}
+/**
+ * Returns if the given method should be compiled when doing compile-the-world.
+ *
+ * TODO: This should be a private method in a CompileTheWorld class.
+ */
+static bool can_be_compiled(methodHandle m, int comp_level) {
+ assert(CompileTheWorld, "must be");
+
+ // It's not valid to compile a native wrapper for MethodHandle methods
+ // that take a MemberName appendix since the bytecode signature is not
+ // correct.
+ vmIntrinsics::ID iid = m->intrinsic_id();
+ if (MethodHandles::is_signature_polymorphic(iid) && MethodHandles::has_member_arg(iid)) {
+ return false;
+ }
+
+ return CompilationPolicy::can_be_compiled(m, comp_level);
+}
+
void ClassLoader::compile_the_world_in(char* name, Handle loader, TRAPS) {
int len = (int)strlen(name);
if (len > 6 && strcmp(".class", name + len - 6) == 0) {
@@ -1362,8 +1381,7 @@
int comp_level = CompilationPolicy::policy()->initial_compile_level();
for (int n = 0; n < k->methods()->length(); n++) {
methodHandle m (THREAD, k->methods()->at(n));
- if (CompilationPolicy::can_be_compiled(m, comp_level)) {
-
+ if (can_be_compiled(m, comp_level)) {
if (++_codecache_sweep_counter == CompileTheWorldSafepointInterval) {
// Give sweeper a chance to keep up with CTW
VM_ForceSafepoint op;
@@ -1375,7 +1393,7 @@
methodHandle(), 0, "CTW", THREAD);
if (HAS_PENDING_EXCEPTION) {
clear_pending_exception_if_not_oom(CHECK);
- tty->print_cr("CompileTheWorld (%d) : Skipping method: %s", _compile_the_world_class_counter, m->name()->as_C_string());
+ tty->print_cr("CompileTheWorld (%d) : Skipping method: %s", _compile_the_world_class_counter, m->name_and_sig_as_C_string());
} else {
_compile_the_world_method_counter++;
}
@@ -1391,11 +1409,13 @@
methodHandle(), 0, "CTW", THREAD);
if (HAS_PENDING_EXCEPTION) {
clear_pending_exception_if_not_oom(CHECK);
- tty->print_cr("CompileTheWorld (%d) : Skipping method: %s", _compile_the_world_class_counter, m->name()->as_C_string());
+ tty->print_cr("CompileTheWorld (%d) : Skipping method: %s", _compile_the_world_class_counter, m->name_and_sig_as_C_string());
} else {
_compile_the_world_method_counter++;
}
}
+ } else {
+ tty->print_cr("CompileTheWorld (%d) : Skipping method: %s", _compile_the_world_class_counter, m->name_and_sig_as_C_string());
}
nmethod* nm = m->code();