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8136421: JEP 243: Java-Level JVM Compiler Interface

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Reviewed-by: ihse, alanb, roland, coleenp, iveresov, kvn, kbarrett
This commit is contained in:
Christian Thalinger 2015-10-08 12:49:30 -10:00
parent f5b4bb46f5
commit 16526e000e
505 changed files with 50394 additions and 915 deletions
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77
hotspot/src/share/vm/compiler/oopMap.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1998, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -184,6 +184,8 @@ class OopMap: public ResourceObj {
void copy_data_to(address addr) const;
OopMap* deep_copy();
bool has_derived_pointer() const PRODUCT_RETURN0;
bool legal_vm_reg_name(VMReg local) {
return OopMapValue::legal_vm_reg_name(local);
}
@ -350,13 +352,82 @@ class OopMapStream : public StackObj {
#endif
};
class ImmutableOopMapBuilder {
private:
class Mapping;
private:
const OopMapSet* _set;
const OopMap* _empty;
const OopMap* _last;
int _empty_offset;
int _last_offset;
int _offset;
int _required;
Mapping* _mapping;
ImmutableOopMapSet* _new_set;
/* Used for bookkeeping when building ImmutableOopMaps */
class Mapping : public ResourceObj {
public:
enum kind_t { OOPMAP_UNKNOWN = 0, OOPMAP_NEW = 1, OOPMAP_EMPTY = 2, OOPMAP_DUPLICATE = 3 };
kind_t _kind;
int _offset;
int _size;
const OopMap* _map;
const OopMap* _other;
Mapping() : _kind(OOPMAP_UNKNOWN), _offset(-1), _size(-1), _map(NULL) {}
void set(kind_t kind, int offset, int size, const OopMap* map = 0, const OopMap* other = 0) {
_kind = kind;
_offset = offset;
_size = size;
_map = map;
_other = other;
}
};
public:
ImmutableOopMapBuilder(const OopMapSet* set);
int heap_size();
ImmutableOopMapSet* build();
ImmutableOopMapSet* generate_into(address buffer);
private:
bool is_empty(const OopMap* map) const {
return map->count() == 0;
}
bool is_last_duplicate(const OopMap* map) {
if (_last != NULL && _last->count() > 0 && _last->equals(map)) {
return true;
}
return false;
}
#ifdef ASSERT
void verify(address buffer, int size, const ImmutableOopMapSet* set);
#endif
bool has_empty() const {
return _empty_offset != -1;
}
int size_for(const OopMap* map) const;
void fill_pair(ImmutableOopMapPair* pair, const OopMap* map, int offset, const ImmutableOopMapSet* set);
int fill_map(ImmutableOopMapPair* pair, const OopMap* map, int offset, const ImmutableOopMapSet* set);
void fill(ImmutableOopMapSet* set, int size);
};
// Derived pointer support. This table keeps track of all derived points on a
// stack. It is cleared before each scavenge/GC. During the traversal of all
// oops, it is filled in with references to all locations that contains a
// derived oop (assumed to be very few). When the GC is complete, the derived
// pointers are updated based on their base pointers new value and an offset.
#ifdef COMPILER2
#if defined(COMPILER2) || INCLUDE_JVMCI
class DerivedPointerTable : public AllStatic {
friend class VMStructs;
private:
@ -392,6 +463,6 @@ class DerivedPointerTableDeactivate: public StackObj {
}
}
};
#endif // COMPILER2
#endif // COMPILER2 || INCLUDE_JVMCI
#endif // SHARE_VM_COMPILER_OOPMAP_HPP