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comparison src/share/vm/opto/graphKit.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 8f972594effc
children 7f813940ac35
comparison
equal deleted inserted replaced
6241:aba91a731143 6266:1d7922586cf6
963 assert(call->jvms()->debug_start() == non_debug_edges, ""); 963 assert(call->jvms()->debug_start() == non_debug_edges, "");
964 assert(call->jvms()->debug_end() == call->req(), ""); 964 assert(call->jvms()->debug_end() == call->req(), "");
965 assert(call->jvms()->debug_depth() == call->req() - non_debug_edges, ""); 965 assert(call->jvms()->debug_depth() == call->req() - non_debug_edges, "");
966 } 966 }
967 967
968 bool GraphKit::compute_stack_effects(int& inputs, int& depth) { 968 bool GraphKit::compute_stack_effects(int& inputs, int& depth, bool for_parse) {
969 Bytecodes::Code code = java_bc(); 969 Bytecodes::Code code = java_bc();
970 if (code == Bytecodes::_wide) { 970 if (code == Bytecodes::_wide) {
971 code = method()->java_code_at_bci(bci() + 1); 971 code = method()->java_code_at_bci(bci() + 1);
972 } 972 }
973 973
1030 { 1030 {
1031 bool ignore; 1031 bool ignore;
1032 ciBytecodeStream iter(method()); 1032 ciBytecodeStream iter(method());
1033 iter.reset_to_bci(bci()); 1033 iter.reset_to_bci(bci());
1034 iter.next(); 1034 iter.next();
1035 ciMethod* method = iter.get_method(ignore); 1035 ciMethod* callee = iter.get_method(ignore);
1036 // (Do not use ciMethod::arg_size(), because 1036 // (Do not use ciMethod::arg_size(), because
1037 // it might be an unloaded method, which doesn't 1037 // it might be an unloaded method, which doesn't
1038 // know whether it is static or not.) 1038 // know whether it is static or not.)
1039 inputs = method->invoke_arg_size(code); 1039 if (for_parse) {
1040 int size = method->return_type()->size(); 1040 // Case 1: When called from parse we are *before* the invoke (in the
1041 // caller) and need to to adjust the inputs by an appendix
1042 // argument that will be pushed implicitly.
1043 inputs = callee->invoke_arg_size(code) - (iter.has_appendix() ? 1 : 0);
1044 } else {
1045 // Case 2: Here we are *after* the invoke (in the callee) and need to
1046 // remove any appendix arguments that were popped.
1047 inputs = callee->invoke_arg_size(code) - (callee->has_member_arg() ? 1 : 0);
1048 }
1049 int size = callee->return_type()->size();
1041 depth = size - inputs; 1050 depth = size - inputs;
1042 } 1051 }
1043 break; 1052 break;
1044 1053
1045 case Bytecodes::_multianewarray: 1054 case Bytecodes::_multianewarray:
1369 // The idea would be that an inlined function's null checks 1378 // The idea would be that an inlined function's null checks
1370 // can be shared with the entire inlining tree. 1379 // can be shared with the entire inlining tree.
1371 // The expense of doing this is that the PreserveJVMState class 1380 // The expense of doing this is that the PreserveJVMState class
1372 // would have to preserve caller states too, with a deep copy. 1381 // would have to preserve caller states too, with a deep copy.
1373 } 1382 }
1374
1375 1383
1376 1384
1377 //============================================================================= 1385 //=============================================================================
1378 //--------------------------------memory--------------------------------------- 1386 //--------------------------------memory---------------------------------------
1379 Node* GraphKit::memory(uint alias_idx) { 1387 Node* GraphKit::memory(uint alias_idx) {