1.1 --- a/src/share/vm/ci/bcEscapeAnalyzer.hpp Tue Mar 11 11:25:13 2008 -0700
1.2 +++ b/src/share/vm/ci/bcEscapeAnalyzer.hpp Tue Mar 11 19:00:38 2008 -0700
1.3 @@ -46,9 +46,12 @@
1.4 BitMap _arg_stack;
1.5 BitMap _arg_returned;
1.6 BitMap _dirty;
1.7 + enum{ ARG_OFFSET_MAX = 31};
1.8 + uint *_arg_modified;
1.9
1.10 bool _return_local;
1.11 bool _allocated_escapes;
1.12 + bool _unknown_modified;
1.13 bool _return_allocated;
1.14
1.15 ciObjectList _dependencies;
1.16 @@ -80,6 +83,7 @@
1.17 void set_method_escape(ArgumentMap vars);
1.18 void set_global_escape(ArgumentMap vars);
1.19 void set_dirty(ArgumentMap vars);
1.20 + void set_modified(ArgumentMap vars, int offs, int size);
1.21
1.22 bool is_recursive_call(ciMethod* callee);
1.23 void add_dependence(ciKlass *klass, ciMethod *meth);
1.24 @@ -140,6 +144,13 @@
1.25 return !_conservative && _return_allocated && !_allocated_escapes;
1.26 }
1.27
1.28 + // Tracking of argument modification
1.29 +
1.30 + enum {OFFSET_ANY = -1};
1.31 + bool is_arg_modified(int arg, int offset, int size_in_bytes);
1.32 + void set_arg_modified(int arg, int offset, int size_in_bytes);
1.33 + bool has_non_arg_side_affects() { return _unknown_modified; }
1.34 +
1.35 // Copy dependencies from this analysis into "deps"
1.36 void copy_dependencies(Dependencies *deps);
1.37 };
