Mercurial > hg > graal-jvmci-8
diff src/share/vm/c1/c1_Runtime1.cpp @ 1602:136b78722a08
6939203: JSR 292 needs method handle constants
Summary: Add new CP types CONSTANT_MethodHandle, CONSTANT_MethodType; extend 'ldc' bytecode.
Reviewed-by: twisti, never
author | jrose |
---|---|
date | Wed, 09 Jun 2010 18:50:45 -0700 |
parents | b812ff5abc73 |
children | d93949c5bdcc |
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--- a/src/share/vm/c1/c1_Runtime1.cpp Mon Jun 07 14:17:01 2010 -0700 +++ b/src/share/vm/c1/c1_Runtime1.cpp Wed Jun 09 18:50:45 2010 -0700 @@ -601,7 +601,7 @@ static klassOop resolve_field_return_klass(methodHandle caller, int bci, TRAPS) { - Bytecode_field* field_access = Bytecode_field_at(caller(), caller->bcp_from(bci)); + Bytecode_field* field_access = Bytecode_field_at(caller, bci); // This can be static or non-static field access Bytecodes::Code code = field_access->code(); @@ -721,7 +721,7 @@ Handle load_klass(THREAD, NULL); // oop needed by load_klass_patching code if (stub_id == Runtime1::access_field_patching_id) { - Bytecode_field* field_access = Bytecode_field_at(caller_method(), caller_method->bcp_from(bci)); + Bytecode_field* field_access = Bytecode_field_at(caller_method, bci); FieldAccessInfo result; // initialize class if needed Bytecodes::Code code = field_access->code(); constantPoolHandle constants(THREAD, caller_method->constants()); @@ -781,11 +781,9 @@ case Bytecodes::_ldc: case Bytecodes::_ldc_w: { - Bytecode_loadconstant* cc = Bytecode_loadconstant_at(caller_method(), - caller_method->bcp_from(bci)); - klassOop resolved = caller_method->constants()->klass_at(cc->index(), CHECK); - // ldc wants the java mirror. - k = resolved->klass_part()->java_mirror(); + Bytecode_loadconstant* cc = Bytecode_loadconstant_at(caller_method, bci); + k = cc->resolve_constant(CHECK); + assert(k != NULL && !k->is_klass(), "must be class mirror or other Java constant"); } break; default: Unimplemented(); @@ -816,6 +814,15 @@ // Return to the now deoptimized frame. } + // If we are patching in a non-perm oop, make sure the nmethod + // is on the right list. + if (ScavengeRootsInCode && load_klass.not_null() && load_klass->is_scavengable()) { + MutexLockerEx ml_code (CodeCache_lock, Mutex::_no_safepoint_check_flag); + nmethod* nm = CodeCache::find_nmethod(caller_frame.pc()); + guarantee(nm != NULL, "only nmethods can contain non-perm oops"); + if (!nm->on_scavenge_root_list()) + CodeCache::add_scavenge_root_nmethod(nm); + } // Now copy code back