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comparison src/share/vm/ci/ciMethodHandle.cpp @ 6266:1d7922586cf6

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7023639: JSR 292 method handle invocation needs a fast path for compiled code 6984705: JSR 292 method handle creation should not go through JNI Summary: remove assembly code for JDK 7 chained method handles Reviewed-by: jrose, twisti, kvn, mhaupt Contributed-by: John Rose <john.r.rose@oracle.com>, Christian Thalinger <christian.thalinger@oracle.com>, Michael Haupt <michael.haupt@oracle.com>
author twisti
date Tue, 24 Jul 2012 10:51:00 -0700
parents e0658a9b3f87
children da91efe96a93
comparison
equal deleted inserted replaced
6241:aba91a731143 6266:1d7922586cf6
22 * 22 *
23 */ 23 */
24 24
25 #include "precompiled.hpp" 25 #include "precompiled.hpp"
26 #include "ci/ciClassList.hpp" 26 #include "ci/ciClassList.hpp"
27 #include "ci/ciInstance.hpp"
28 #include "ci/ciMethodData.hpp"
29 #include "ci/ciMethodHandle.hpp" 27 #include "ci/ciMethodHandle.hpp"
30 #include "ci/ciUtilities.hpp" 28 #include "ci/ciUtilities.hpp"
31 #include "prims/methodHandleWalk.hpp" 29 #include "classfile/javaClasses.hpp"
32 #include "prims/methodHandles.hpp"
33
34 // ciMethodHandle
35 30
36 // ------------------------------------------------------------------ 31 // ------------------------------------------------------------------
37 // ciMethodHandle::get_adapter 32 // ciMethodHandle::get_vmtarget
38 // 33 //
39 // Return an adapter for this MethodHandle. 34 // Return: MH.form -> LF.vmentry -> MN.vmtarget
40 ciMethod* ciMethodHandle::get_adapter_impl(bool is_invokedynamic) { 35 ciMethod* ciMethodHandle::get_vmtarget() const {
41 VM_ENTRY_MARK; 36 VM_ENTRY_MARK;
42 Handle h(get_oop()); 37 oop form_oop = java_lang_invoke_MethodHandle::form(get_oop());
43 methodHandle callee(_callee->get_methodOop()); 38 oop vmentry_oop = java_lang_invoke_LambdaForm::vmentry(form_oop);
44 assert(callee->is_method_handle_invoke(), ""); 39 oop vmtarget_oop = java_lang_invoke_MemberName::vmtarget(vmentry_oop);
45 oop mt1 = callee->method_handle_type(); 40 return CURRENT_ENV->get_object(vmtarget_oop)->as_method();
46 oop mt2 = java_lang_invoke_MethodHandle::type(h());
47 if (!java_lang_invoke_MethodType::equals(mt1, mt2)) {
48 if (PrintMiscellaneous && (Verbose || WizardMode)) {
49 tty->print_cr("ciMethodHandle::get_adapter: types not equal");
50 mt1->print(); mt2->print();
51 }
52 return NULL;
53 }
54 // We catch all exceptions here that could happen in the method
55 // handle compiler and stop the VM.
56 MethodHandleCompiler mhc(h, callee->name(), callee->signature(), _profile.count(), is_invokedynamic, THREAD);
57 if (!HAS_PENDING_EXCEPTION) {
58 methodHandle m = mhc.compile(THREAD);
59 if (!HAS_PENDING_EXCEPTION) {
60 return CURRENT_ENV->get_object(m())->as_method();
61 }
62 }
63 if (PrintMiscellaneous && (Verbose || WizardMode)) {
64 tty->print("*** ciMethodHandle::get_adapter => ");
65 PENDING_EXCEPTION->print();
66 tty->print("*** get_adapter (%s): ", is_invokedynamic ? "indy" : "mh"); ((ciObject*)this)->print();
67 }
68 CLEAR_PENDING_EXCEPTION;
69 return NULL;
70 } 41 }
71
72 // ------------------------------------------------------------------
73 // ciMethodHandle::get_adapter
74 //
75 // Return an adapter for this MethodHandle.
76 ciMethod* ciMethodHandle::get_adapter(bool is_invokedynamic) {
77 ciMethod* result = get_adapter_impl(is_invokedynamic);
78 if (result) {
79 // Fake up the MDO maturity.
80 ciMethodData* mdo = result->method_data();
81 if (mdo != NULL && _caller->method_data() != NULL && _caller->method_data()->is_mature()) {
82 mdo->set_mature();
83 }
84 }
85 return result;
86 }
87
88
89 #ifdef ASSERT
90 // ------------------------------------------------------------------
91 // ciMethodHandle::print_chain_impl
92 //
93 // Implementation of the print method.
94 void ciMethodHandle::print_chain_impl() {
95 ASSERT_IN_VM;
96 MethodHandleChain::print(get_oop());
97 }
98
99
100 // ------------------------------------------------------------------
101 // ciMethodHandle::print_chain
102 //
103 // Implementation of the print_chain method.
104 void ciMethodHandle::print_chain() {
105 GUARDED_VM_ENTRY(print_chain_impl(););
106 }
107 #endif