# HG changeset patch
# User twisti
# Date 1321531650 28800
# Node ID a04a201f0f5a5eb55a8f2aafc51a943fbf73d786
# Parent  973293defacd340fa4ece8bcd22f4e069fd9bc12
7108383: JSR 292: JRuby bench_define_method_methods.rb: assert(slow_jvms != NULL) failed: miss path must not
Reviewed-by: kvn, never

diff -r 973293defacd -r a04a201f0f5a src/share/vm/ci/ciMethod.hpp
--- a/src/share/vm/ci/ciMethod.hpp	Wed Nov 16 19:42:58 2011 -0800
+++ b/src/share/vm/ci/ciMethod.hpp	Thu Nov 17 04:07:30 2011 -0800
@@ -295,12 +295,6 @@
   // Print the name of this method in various incarnations.
   void print_name(outputStream* st = tty);
   void print_short_name(outputStream* st = tty);
-
-  methodOop get_method_handle_target() {
-    KlassHandle receiver_limit; int flags = 0;
-    methodHandle m = MethodHandles::decode_method(get_oop(), receiver_limit, flags);
-    return m();
-  }
 };
 
 #endif // SHARE_VM_CI_CIMETHOD_HPP
diff -r 973293defacd -r a04a201f0f5a src/share/vm/opto/callGenerator.cpp
--- a/src/share/vm/opto/callGenerator.cpp	Wed Nov 16 19:42:58 2011 -0800
+++ b/src/share/vm/opto/callGenerator.cpp	Thu Nov 17 04:07:30 2011 -0800
@@ -318,17 +318,17 @@
   return new DirectCallGenerator(m, separate_io_proj);
 }
 
-CallGenerator* CallGenerator::for_dynamic_call(ciMethod* m) {
-  assert(m->is_method_handle_invoke() || m->is_method_handle_adapter(), "for_dynamic_call mismatch");
-  return new DynamicCallGenerator(m);
-}
-
 CallGenerator* CallGenerator::for_virtual_call(ciMethod* m, int vtable_index) {
   assert(!m->is_static(), "for_virtual_call mismatch");
   assert(!m->is_method_handle_invoke(), "should be a direct call");
   return new VirtualCallGenerator(m, vtable_index);
 }
 
+CallGenerator* CallGenerator::for_dynamic_call(ciMethod* m) {
+  assert(m->is_method_handle_invoke() || m->is_method_handle_adapter(), "for_dynamic_call mismatch");
+  return new DynamicCallGenerator(m);
+}
+
 // Allow inlining decisions to be delayed
 class LateInlineCallGenerator : public DirectCallGenerator {
   CallGenerator* _inline_cg;
@@ -576,7 +576,9 @@
     kit.set_control(slow_ctl);
     if (!kit.stopped()) {
       slow_jvms = _if_missed->generate(kit.sync_jvms());
-      assert(slow_jvms != NULL, "miss path must not fail to generate");
+      if (kit.failing())
+        return NULL;  // might happen because of NodeCountInliningCutoff
+      assert(slow_jvms != NULL, "must be");
       kit.add_exception_states_from(slow_jvms);
       kit.set_map(slow_jvms->map());
       if (!kit.stopped())
@@ -682,6 +684,15 @@
 }
 
 
+CallGenerator* CallGenerator::for_method_handle_call(Node* method_handle, JVMState* jvms,
+                                                     ciMethod* caller, ciMethod* callee, ciCallProfile profile) {
+  assert(callee->is_method_handle_invoke() || callee->is_method_handle_adapter(), "for_method_handle_call mismatch");
+  CallGenerator* cg = CallGenerator::for_method_handle_inline(method_handle, jvms, caller, callee, profile);
+  if (cg != NULL)
+    return cg;
+  return CallGenerator::for_direct_call(callee);
+}
+
 CallGenerator* CallGenerator::for_method_handle_inline(Node* method_handle, JVMState* jvms,
                                                        ciMethod* caller, ciMethod* callee, ciCallProfile profile) {
   if (method_handle->Opcode() == Op_ConP) {
@@ -721,8 +732,8 @@
     // Generate a guard so that each can be inlined.  We might want to
     // do more inputs at later point but this gets the most common
     // case.
-    CallGenerator* cg1 = for_method_handle_inline(method_handle->in(1), jvms, caller, callee, profile.rescale(1.0 - prob));
-    CallGenerator* cg2 = for_method_handle_inline(method_handle->in(2), jvms, caller, callee, profile.rescale(prob));
+    CallGenerator* cg1 = for_method_handle_call(method_handle->in(1), jvms, caller, callee, profile.rescale(1.0 - prob));
+    CallGenerator* cg2 = for_method_handle_call(method_handle->in(2), jvms, caller, callee, profile.rescale(prob));
     if (cg1 != NULL && cg2 != NULL) {
       const TypeOopPtr* oop_ptr = method_handle->in(1)->bottom_type()->is_oopptr();
       ciObject* const_oop = oop_ptr->const_oop();
@@ -733,6 +744,17 @@
   return NULL;
 }
 
+CallGenerator* CallGenerator::for_invokedynamic_call(JVMState* jvms, ciMethod* caller, ciMethod* callee, ciCallProfile profile) {
+  assert(callee->is_method_handle_invoke() || callee->is_method_handle_adapter(), "for_invokedynamic_call mismatch");
+  // Get the CallSite object.
+  ciBytecodeStream str(caller);
+  str.force_bci(jvms->bci());  // Set the stream to the invokedynamic bci.
+  ciCallSite* call_site = str.get_call_site();
+  CallGenerator* cg = CallGenerator::for_invokedynamic_inline(call_site, jvms, caller, callee, profile);
+  if (cg != NULL)
+    return cg;
+  return CallGenerator::for_dynamic_call(callee);
+}
 
 CallGenerator* CallGenerator::for_invokedynamic_inline(ciCallSite* call_site, JVMState* jvms,
                                                        ciMethod* caller, ciMethod* callee, ciCallProfile profile) {
@@ -819,7 +841,9 @@
     kit.set_control(slow_ctl);
     if (!kit.stopped()) {
       slow_jvms = _if_missed->generate(kit.sync_jvms());
-      assert(slow_jvms != NULL, "miss path must not fail to generate");
+      if (kit.failing())
+        return NULL;  // might happen because of NodeCountInliningCutoff
+      assert(slow_jvms != NULL, "must be");
       kit.add_exception_states_from(slow_jvms);
       kit.set_map(slow_jvms->map());
       if (!kit.stopped())
diff -r 973293defacd -r a04a201f0f5a src/share/vm/opto/callGenerator.hpp
--- a/src/share/vm/opto/callGenerator.hpp	Wed Nov 16 19:42:58 2011 -0800
+++ b/src/share/vm/opto/callGenerator.hpp	Thu Nov 17 04:07:30 2011 -0800
@@ -108,8 +108,11 @@
 
   // How to generate vanilla out-of-line call sites:
   static CallGenerator* for_direct_call(ciMethod* m, bool separate_io_projs = false);   // static, special
+  static CallGenerator* for_virtual_call(ciMethod* m, int vtable_index);  // virtual, interface
   static CallGenerator* for_dynamic_call(ciMethod* m);   // invokedynamic
-  static CallGenerator* for_virtual_call(ciMethod* m, int vtable_index);  // virtual, interface
+
+  static CallGenerator* for_method_handle_call(Node* method_handle, JVMState* jvms, ciMethod* caller, ciMethod* callee, ciCallProfile profile);
+  static CallGenerator* for_invokedynamic_call(                     JVMState* jvms, ciMethod* caller, ciMethod* callee, ciCallProfile profile);
 
   static CallGenerator* for_method_handle_inline(Node* method_handle,   JVMState* jvms, ciMethod* caller, ciMethod* callee, ciCallProfile profile);
   static CallGenerator* for_invokedynamic_inline(ciCallSite* call_site, JVMState* jvms, ciMethod* caller, ciMethod* callee, ciCallProfile profile);
diff -r 973293defacd -r a04a201f0f5a src/share/vm/opto/doCall.cpp
--- a/src/share/vm/opto/doCall.cpp	Wed Nov 16 19:42:58 2011 -0800
+++ b/src/share/vm/opto/doCall.cpp	Thu Nov 17 04:07:30 2011 -0800
@@ -62,7 +62,6 @@
 CallGenerator* Compile::call_generator(ciMethod* call_method, int vtable_index, bool call_is_virtual,
                                        JVMState* jvms, bool allow_inline,
                                        float prof_factor) {
-  CallGenerator*  cg;
   ciMethod*       caller   = jvms->method();
   int             bci      = jvms->bci();
   Bytecodes::Code bytecode = caller->java_code_at_bci(bci);
@@ -110,7 +109,7 @@
   // We do this before the strict f.p. check below because the
   // intrinsics handle strict f.p. correctly.
   if (allow_inline) {
-    cg = find_intrinsic(call_method, call_is_virtual);
+    CallGenerator* cg = find_intrinsic(call_method, call_is_virtual);
     if (cg != NULL)  return cg;
   }
 
@@ -121,33 +120,16 @@
   if (call_method->is_method_handle_invoke()) {
     if (bytecode != Bytecodes::_invokedynamic) {
       GraphKit kit(jvms);
-      Node* n = kit.argument(0);
-
-      CallGenerator* cg = CallGenerator::for_method_handle_inline(n, jvms, caller, call_method, profile);
-      if (cg != NULL) {
-        return cg;
-      }
-      return CallGenerator::for_direct_call(call_method);
+      Node* method_handle = kit.argument(0);
+      return CallGenerator::for_method_handle_call(method_handle, jvms, caller, call_method, profile);
     }
     else {
-      // Get the CallSite object.
-      ciMethod* caller_method = jvms->method();
-      ciBytecodeStream str(caller_method);
-      str.force_bci(jvms->bci());  // Set the stream to the invokedynamic bci.
-      ciCallSite* call_site = str.get_call_site();
-
-      CallGenerator* cg = CallGenerator::for_invokedynamic_inline(call_site, jvms, caller, call_method, profile);
-      if (cg != NULL) {
-        return cg;
-      }
-      // If something failed, generate a normal dynamic call.
-      return CallGenerator::for_dynamic_call(call_method);
+      return CallGenerator::for_invokedynamic_call(jvms, caller, call_method, profile);
     }
   }
 
   // Do not inline strict fp into non-strict code, or the reverse
-  bool caller_method_is_strict = jvms->method()->is_strict();
-  if( caller_method_is_strict ^ call_method->is_strict() ) {
+  if (caller->is_strict() ^ call_method->is_strict()) {
     allow_inline = false;
   }
 
@@ -258,7 +240,7 @@
             }
             if (miss_cg != NULL) {
               NOT_PRODUCT(trace_type_profile(jvms->method(), jvms->depth() - 1, jvms->bci(), receiver_method, profile.receiver(0), site_count, receiver_count));
-              cg = CallGenerator::for_predicted_call(profile.receiver(0), miss_cg, hit_cg, profile.receiver_prob(0));
+              CallGenerator* cg = CallGenerator::for_predicted_call(profile.receiver(0), miss_cg, hit_cg, profile.receiver_prob(0));
               if (cg != NULL)  return cg;
             }
           }