Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/x86/vm/vtableStubs_x86_32.cpp
src/cpu/x86/vm/vtableStubs_x86_32.cpp
- changeset 3969
- 1d7922586cf6
- parent 2314
- f95d63e2154a
- child 4037
- da91efe96a93
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| 3944:aba91a731143 | 3969:1d7922586cf6 |
|---|---|
| 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); |
