Mercurial > jdk8-mips64-public > hotspot / file diff

     1.1 --- a/src/share/vm/opto/macro.cpp	Thu Apr 17 07:16:03 2008 -0700
     1.2 +++ b/src/share/vm/opto/macro.cpp	Wed Apr 23 11:20:36 2008 -0700
     1.3 @@ -584,7 +584,7 @@
     1.4  
     1.5        const Type *field_type;
     1.6        // The next code is taken from Parse::do_get_xxx().
     1.7 -      if (basic_elem_type == T_OBJECT) {
     1.8 +      if (basic_elem_type == T_OBJECT || basic_elem_type == T_ARRAY) {
     1.9          if (!elem_type->is_loaded()) {
    1.10            field_type = TypeInstPtr::BOTTOM;
    1.11          } else if (field != NULL && field->is_constant()) {
    1.12 @@ -597,6 +597,10 @@
    1.13          } else {
    1.14            field_type = TypeOopPtr::make_from_klass(elem_type->as_klass());
    1.15          }
    1.16 +        if (UseCompressedOops) {
    1.17 +          field_type = field_type->is_oopptr()->make_narrowoop();
    1.18 +          basic_elem_type = T_NARROWOOP;
    1.19 +        }
    1.20        } else {
    1.21          field_type = Type::get_const_basic_type(basic_elem_type);
    1.22        }
    1.23 @@ -659,6 +663,13 @@
    1.24  #endif
    1.25          return false;
    1.26        }
    1.27 +      if (UseCompressedOops && field_type->isa_narrowoop()) {
    1.28 +        // Enable "DecodeN(EncodeP(Allocate)) --> Allocate" transformation
    1.29 +        // to be able scalar replace the allocation.
    1.30 +        _igvn.set_delay_transform(false);
    1.31 +        field_val = DecodeNNode::decode(&_igvn, field_val);
    1.32 +        _igvn.set_delay_transform(true);
    1.33 +      }
    1.34        sfpt->add_req(field_val);
    1.35      }
    1.36      JVMState *jvms = sfpt->jvms();