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comparison src/cpu/x86/vm/vtableStubs_x86_32.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 f95d63e2154a
children da91efe96a93
comparison
equal deleted inserted replaced
6241:aba91a731143 6266:1d7922586cf6
74 assert(VtableStub::receiver_location() == rcx->as_VMReg(), "receiver expected in rcx"); 74 assert(VtableStub::receiver_location() == rcx->as_VMReg(), "receiver expected in rcx");
75 75
76 // get receiver klass 76 // get receiver klass
77 address npe_addr = __ pc(); 77 address npe_addr = __ pc();
78 __ movptr(rax, Address(rcx, oopDesc::klass_offset_in_bytes())); 78 __ movptr(rax, Address(rcx, oopDesc::klass_offset_in_bytes()));
79 // compute entry offset (in words) 79
80 int entry_offset = instanceKlass::vtable_start_offset() + vtable_index*vtableEntry::size();
81 #ifndef PRODUCT 80 #ifndef PRODUCT
82 if (DebugVtables) { 81 if (DebugVtables) {
83 Label L; 82 Label L;
84 // check offset vs vtable length 83 // check offset vs vtable length
85 __ cmpl(Address(rax, instanceKlass::vtable_length_offset()*wordSize), vtable_index*vtableEntry::size()); 84 __ cmpl(Address(rax, instanceKlass::vtable_length_offset()*wordSize), vtable_index*vtableEntry::size());
91 #endif // PRODUCT 90 #endif // PRODUCT
92 91
93 const Register method = rbx; 92 const Register method = rbx;
94 93
95 // load methodOop and target address 94 // load methodOop and target address
96 __ movptr(method, Address(rax, entry_offset*wordSize + vtableEntry::method_offset_in_bytes())); 95 __ lookup_virtual_method(rax, vtable_index, method);
96
97 if (DebugVtables) { 97 if (DebugVtables) {
98 Label L; 98 Label L;
99 __ cmpptr(method, (int32_t)NULL_WORD); 99 __ cmpptr(method, (int32_t)NULL_WORD);
100 __ jcc(Assembler::equal, L); 100 __ jcc(Assembler::equal, L);
101 __ cmpptr(Address(method, methodOopDesc::from_compiled_offset()), (int32_t)NULL_WORD); 101 __ cmpptr(Address(method, methodOopDesc::from_compiled_offset()), (int32_t)NULL_WORD);