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8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation

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Enhance method resolution and resulting data structures, plus some refactoring.

Reviewed-by: twisti, acorn, jrose
This commit is contained in:
David Chase 2013-09-13 22:38:02 -04:00
parent 98d8f57603
commit 222c735458
40 changed files with 715 additions and 601 deletions
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19
hotspot/src/share/vm/oops/method.hpp
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@ -448,16 +448,22 @@ class Method : public Metadata {
enum VtableIndexFlag {
// Valid vtable indexes are non-negative (>= 0).
// These few negative values are used as sentinels.
highest_unused_vtable_index_value = -5,
itable_index_max = -10, // first itable index, growing downward
pending_itable_index = -9, // itable index will be assigned
invalid_vtable_index = -4, // distinct from any valid vtable index
garbage_vtable_index = -3, // not yet linked; no vtable layout yet
nonvirtual_vtable_index = -2 // there is no need for vtable dispatch
// 6330203 Note: Do not use -1, which was overloaded with many meanings.
};
DEBUG_ONLY(bool valid_vtable_index() const { return _vtable_index >= nonvirtual_vtable_index; })
int vtable_index() const { assert(valid_vtable_index(), "");
return _vtable_index; }
bool has_vtable_index() const { return _vtable_index >= 0; }
int vtable_index() const { return _vtable_index; }
void set_vtable_index(int index) { _vtable_index = index; }
DEBUG_ONLY(bool valid_itable_index() const { return _vtable_index <= pending_itable_index; })
bool has_itable_index() const { return _vtable_index <= itable_index_max; }
int itable_index() const { assert(valid_itable_index(), "");
return itable_index_max - _vtable_index; }
void set_itable_index(int index) { _vtable_index = itable_index_max - index; assert(valid_itable_index(), ""); }
// interpreter entry
address interpreter_entry() const { return _i2i_entry; }
@ -560,10 +566,11 @@ class Method : public Metadata {
// checks method and its method holder
bool is_final_method() const;
bool is_strict_method() const;
bool is_final_method(AccessFlags class_access_flags) const;
// true if method needs no dynamic dispatch (final and/or no vtable entry)
bool can_be_statically_bound() const;
bool can_be_statically_bound(AccessFlags class_access_flags) const;
// returns true if the method has any backward branches.
bool has_loops() {
@ -740,10 +747,6 @@ class Method : public Metadata {
// so handles are not used to avoid deadlock.
jmethodID find_jmethod_id_or_null() { return method_holder()->jmethod_id_or_null(this); }
// JNI static invoke cached itable index accessors
int cached_itable_index() { return method_holder()->cached_itable_index(method_idnum()); }
void set_cached_itable_index(int index) { method_holder()->set_cached_itable_index(method_idnum(), index); }
// Support for inlining of intrinsic methods
vmIntrinsics::ID intrinsic_id() const { return (vmIntrinsics::ID) _intrinsic_id; }
void set_intrinsic_id(vmIntrinsics::ID id) { _intrinsic_id = (u1) id; }