Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/c1/c1_LIRGenerator.cpp
src/share/vm/c1/c1_LIRGenerator.cpp
- changeset 3848
- e2fe93124108
- parent 3846
- 8b0a4867acf0
- child 3969
- 1d7922586cf6
equal
deleted
inserted
replaced
| 3847:5e990493719e | 3848:e2fe93124108 |
|---|---|
| 2805 | 2805 |
| 2806 // Get CallSite offset from constant pool cache pointer. | 2806 // Get CallSite offset from constant pool cache pointer. |
| 2807 int index = bcs.get_method_index(); | 2807 int index = bcs.get_method_index(); |
| 2808 size_t call_site_offset = cpcache->get_f1_offset(index); | 2808 size_t call_site_offset = cpcache->get_f1_offset(index); |
| 2809 | 2809 |
| 2810 // Load CallSite object from constant pool cache. | |
| 2811 LIR_Opr call_site = new_register(objectType); | |
| 2812 __ oop2reg(cpcache->constant_encoding(), call_site); | |
| 2813 __ move_wide(new LIR_Address(call_site, call_site_offset, T_OBJECT), call_site); | |
| 2814 | |
| 2810 // If this invokedynamic call site hasn't been executed yet in | 2815 // If this invokedynamic call site hasn't been executed yet in |
| 2811 // the interpreter, the CallSite object in the constant pool | 2816 // the interpreter, the CallSite object in the constant pool |
| 2812 // cache is still null and we need to deoptimize. | 2817 // cache is still null and we need to deoptimize. |
| 2813 if (cpcache->is_f1_null_at(index)) { | 2818 if (cpcache->is_f1_null_at(index)) { |
| 2814 // Cannot re-use same xhandlers for multiple CodeEmitInfos, so | 2819 // Only deoptimize if the CallSite object is still null; we don't |
| 2815 // clone all handlers. This is handled transparently in other | 2820 // recompile methods in C1 after deoptimization so this call site |
| 2816 // places by the CodeEmitInfo cloning logic but is handled | 2821 // might be resolved the next time we execute it after OSR. |
| 2817 // specially here because a stub isn't being used. | |
| 2818 x->set_exception_handlers(new XHandlers(x->exception_handlers())); | |
| 2819 | |
| 2820 DeoptimizeStub* deopt_stub = new DeoptimizeStub(deopt_info); | 2822 DeoptimizeStub* deopt_stub = new DeoptimizeStub(deopt_info); |
| 2821 __ jump(deopt_stub); | 2823 __ cmp(lir_cond_equal, call_site, LIR_OprFact::oopConst(NULL)); |
| 2824 __ branch(lir_cond_equal, T_OBJECT, deopt_stub); | |
| 2822 } | 2825 } |
| 2823 | 2826 |
| 2824 // Use the receiver register for the synthetic MethodHandle | 2827 // Use the receiver register for the synthetic MethodHandle |
| 2825 // argument. | 2828 // argument. |
| 2826 receiver = LIR_Assembler::receiverOpr(); | 2829 receiver = LIR_Assembler::receiverOpr(); |
| 2827 LIR_Opr tmp = new_register(objectType); | |
| 2828 | |
| 2829 // Load CallSite object from constant pool cache. | |
| 2830 __ oop2reg(cpcache->constant_encoding(), tmp); | |
| 2831 __ move_wide(new LIR_Address(tmp, call_site_offset, T_OBJECT), tmp); | |
| 2832 | 2830 |
| 2833 // Load target MethodHandle from CallSite object. | 2831 // Load target MethodHandle from CallSite object. |
| 2834 __ load(new LIR_Address(tmp, java_lang_invoke_CallSite::target_offset_in_bytes(), T_OBJECT), receiver); | 2832 __ load(new LIR_Address(call_site, java_lang_invoke_CallSite::target_offset_in_bytes(), T_OBJECT), receiver); |
| 2835 | 2833 |
| 2836 __ call_dynamic(target, receiver, result_register, | 2834 __ call_dynamic(target, receiver, result_register, |
| 2837 SharedRuntime::get_resolve_opt_virtual_call_stub(), | 2835 SharedRuntime::get_resolve_opt_virtual_call_stub(), |
| 2838 arg_list, info); | 2836 arg_list, info); |
| 2839 break; | 2837 break; |
| 2840 } | 2838 } |
| 2841 default: | 2839 default: |
| 2842 ShouldNotReachHere(); | 2840 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(x->code()))); |
| 2843 break; | 2841 break; |
| 2844 } | 2842 } |
| 2845 | 2843 |
| 2846 // JSR 292 | 2844 // JSR 292 |
| 2847 // Restore the SP after MethodHandle call sites. | 2845 // Restore the SP after MethodHandle call sites. |
