867 IfNode* iff = new IfNode(ctrl, tst, prob, cnt);// New IfNode's
868 _gvn.set_type(iff, iff->Value(&_gvn)); // Value may be known at parse-time
869 // Place 'if' on worklist if it will be in graph
870 if (!tst->is_Con()) record_for_igvn(iff); // Range-check and Null-check removal is later
871 return iff;
872 }
873
874 IfNode* create_and_xform_if(Node* ctrl, Node* tst, float prob, float cnt) {
875 IfNode* iff = new IfNode(ctrl, tst, prob, cnt);// New IfNode's
876 _gvn.transform(iff); // Value may be known at parse-time
877 // Place 'if' on worklist if it will be in graph
878 if (!tst->is_Con()) record_for_igvn(iff); // Range-check and Null-check removal is later
879 return iff;
880 }
881
882 // Insert a loop predicate into the graph
883 void add_predicate(int nargs = 0);
884 void add_predicate_impl(Deoptimization::DeoptReason reason, int nargs);
885
886 Node* make_constant_from_field(ciField* field, Node* obj);
887
888 // Produce new array node of stable type
889 Node* cast_array_to_stable(Node* ary, const TypeAryPtr* ary_type);
890 };
891
892 // Helper class to support building of control flow branches. Upon
893 // creation the map and sp at bci are cloned and restored upon de-
894 // struction. Typical use:
895 //
896 // { PreserveJVMState pjvms(this);
897 // // code of new branch
898 // }
899 // // here the JVM state at bci is established
900
901 class PreserveJVMState: public StackObj {
902 protected:
903 GraphKit* _kit;
904 #ifdef ASSERT
905 int _block; // PO of current block, if a Parse
906 int _bci;
907 #endif
908 SafePointNode* _map;
909 uint _sp;
|
867 IfNode* iff = new IfNode(ctrl, tst, prob, cnt);// New IfNode's
868 _gvn.set_type(iff, iff->Value(&_gvn)); // Value may be known at parse-time
869 // Place 'if' on worklist if it will be in graph
870 if (!tst->is_Con()) record_for_igvn(iff); // Range-check and Null-check removal is later
871 return iff;
872 }
873
874 IfNode* create_and_xform_if(Node* ctrl, Node* tst, float prob, float cnt) {
875 IfNode* iff = new IfNode(ctrl, tst, prob, cnt);// New IfNode's
876 _gvn.transform(iff); // Value may be known at parse-time
877 // Place 'if' on worklist if it will be in graph
878 if (!tst->is_Con()) record_for_igvn(iff); // Range-check and Null-check removal is later
879 return iff;
880 }
881
882 // Insert a loop predicate into the graph
883 void add_predicate(int nargs = 0);
884 void add_predicate_impl(Deoptimization::DeoptReason reason, int nargs);
885
886 Node* make_constant_from_field(ciField* field, Node* obj);
887 };
888
889 // Helper class to support building of control flow branches. Upon
890 // creation the map and sp at bci are cloned and restored upon de-
891 // struction. Typical use:
892 //
893 // { PreserveJVMState pjvms(this);
894 // // code of new branch
895 // }
896 // // here the JVM state at bci is established
897
898 class PreserveJVMState: public StackObj {
899 protected:
900 GraphKit* _kit;
901 #ifdef ASSERT
902 int _block; // PO of current block, if a Parse
903 int _bci;
904 #endif
905 SafePointNode* _map;
906 uint _sp;
|