33 #include "opto/graphKit.hpp"
34 #include "opto/subnode.hpp"
35
36 class BytecodeParseHistogram;
37 class InlineTree;
38 class Parse;
39 class SwitchRange;
40
41
42 //------------------------------InlineTree-------------------------------------
43 class InlineTree : public ResourceObj {
44 Compile* C; // cache
45 JVMState* _caller_jvms; // state of caller
46 ciMethod* _method; // method being called by the caller_jvms
47 InlineTree* _caller_tree;
48 uint _count_inline_bcs; // Accumulated count of inlined bytecodes
49 // Call-site count / interpreter invocation count, scaled recursively.
50 // Always between 0.0 and 1.0. Represents the percentage of the method's
51 // total execution time used at this call site.
52 const float _site_invoke_ratio;
53 const int _site_depth_adjust;
54 float compute_callee_frequency( int caller_bci ) const;
55
56 GrowableArray<InlineTree*> _subtrees;
57 friend class Compile;
58
59 protected:
60 InlineTree(Compile* C,
61 const InlineTree* caller_tree,
62 ciMethod* callee_method,
63 JVMState* caller_jvms,
64 int caller_bci,
65 float site_invoke_ratio,
66 int site_depth_adjust);
67 InlineTree *build_inline_tree_for_callee(ciMethod* callee_method,
68 JVMState* caller_jvms,
69 int caller_bci);
70 const char* try_to_inline(ciMethod* callee_method, ciMethod* caller_method, int caller_bci, ciCallProfile& profile, WarmCallInfo* wci_result);
71 const char* should_inline(ciMethod* callee_method, ciMethod* caller_method, int caller_bci, ciCallProfile& profile, WarmCallInfo* wci_result) const;
72 const char* should_not_inline(ciMethod* callee_method, ciMethod* caller_method, WarmCallInfo* wci_result) const;
73 void print_inlining(ciMethod *callee_method, int caller_bci, const char *failure_msg) const;
74
75 InlineTree *caller_tree() const { return _caller_tree; }
76 InlineTree* callee_at(int bci, ciMethod* m) const;
77 int inline_depth() const { return stack_depth() + _site_depth_adjust; }
78 int stack_depth() const { return _caller_jvms ? _caller_jvms->depth() : 0; }
79
80 public:
81 static InlineTree* build_inline_tree_root();
82 static InlineTree* find_subtree_from_root(InlineTree* root, JVMState* jvms, ciMethod* callee, bool create_if_not_found = false);
83
84 // For temporary (stack-allocated, stateless) ilts:
85 InlineTree(Compile* c, ciMethod* callee_method, JVMState* caller_jvms, float site_invoke_ratio, int site_depth_adjust);
86
87 // InlineTree enum
88 enum InlineStyle {
89 Inline_do_not_inline = 0, //
90 Inline_cha_is_monomorphic = 1, //
91 Inline_type_profile_monomorphic = 2 //
92 };
93
94 // See if it is OK to inline.
95 // The receiver is the inline tree for the caller.
96 //
97 // The result is a temperature indication. If it is hot or cold,
98 // inlining is immediate or undesirable. Otherwise, the info block
99 // returned is newly allocated and may be enqueued.
100 //
101 // If the method is inlinable, a new inline subtree is created on the fly,
102 // and may be accessed by find_subtree_from_root.
103 // The call_method is the dest_method for a special or static invocation.
104 // The call_method is an optimized virtual method candidate otherwise.
105 WarmCallInfo* ok_to_inline(ciMethod *call_method, JVMState* caller_jvms, ciCallProfile& profile, WarmCallInfo* wci);
|
33 #include "opto/graphKit.hpp"
34 #include "opto/subnode.hpp"
35
36 class BytecodeParseHistogram;
37 class InlineTree;
38 class Parse;
39 class SwitchRange;
40
41
42 //------------------------------InlineTree-------------------------------------
43 class InlineTree : public ResourceObj {
44 Compile* C; // cache
45 JVMState* _caller_jvms; // state of caller
46 ciMethod* _method; // method being called by the caller_jvms
47 InlineTree* _caller_tree;
48 uint _count_inline_bcs; // Accumulated count of inlined bytecodes
49 // Call-site count / interpreter invocation count, scaled recursively.
50 // Always between 0.0 and 1.0. Represents the percentage of the method's
51 // total execution time used at this call site.
52 const float _site_invoke_ratio;
53 const int _max_inline_level; // the maximum inline level for this sub-tree (may be adjusted)
54 float compute_callee_frequency( int caller_bci ) const;
55
56 GrowableArray<InlineTree*> _subtrees;
57 friend class Compile;
58
59 protected:
60 InlineTree(Compile* C,
61 const InlineTree* caller_tree,
62 ciMethod* callee_method,
63 JVMState* caller_jvms,
64 int caller_bci,
65 float site_invoke_ratio,
66 int max_inline_level);
67 InlineTree *build_inline_tree_for_callee(ciMethod* callee_method,
68 JVMState* caller_jvms,
69 int caller_bci);
70 const char* try_to_inline(ciMethod* callee_method, ciMethod* caller_method, int caller_bci, ciCallProfile& profile, WarmCallInfo* wci_result);
71 const char* should_inline(ciMethod* callee_method, ciMethod* caller_method, int caller_bci, ciCallProfile& profile, WarmCallInfo* wci_result) const;
72 const char* should_not_inline(ciMethod* callee_method, ciMethod* caller_method, WarmCallInfo* wci_result) const;
73 void print_inlining(ciMethod *callee_method, int caller_bci, const char *failure_msg) const;
74
75 InlineTree *caller_tree() const { return _caller_tree; }
76 InlineTree* callee_at(int bci, ciMethod* m) const;
77 int inline_level() const { return stack_depth(); }
78 int stack_depth() const { return _caller_jvms ? _caller_jvms->depth() : 0; }
79
80 public:
81 static InlineTree* build_inline_tree_root();
82 static InlineTree* find_subtree_from_root(InlineTree* root, JVMState* jvms, ciMethod* callee, bool create_if_not_found = false);
83
84 // For temporary (stack-allocated, stateless) ilts:
85 InlineTree(Compile* c, ciMethod* callee_method, JVMState* caller_jvms, float site_invoke_ratio, int max_inline_level);
86
87 // InlineTree enum
88 enum InlineStyle {
89 Inline_do_not_inline = 0, //
90 Inline_cha_is_monomorphic = 1, //
91 Inline_type_profile_monomorphic = 2 //
92 };
93
94 // See if it is OK to inline.
95 // The receiver is the inline tree for the caller.
96 //
97 // The result is a temperature indication. If it is hot or cold,
98 // inlining is immediate or undesirable. Otherwise, the info block
99 // returned is newly allocated and may be enqueued.
100 //
101 // If the method is inlinable, a new inline subtree is created on the fly,
102 // and may be accessed by find_subtree_from_root.
103 // The call_method is the dest_method for a special or static invocation.
104 // The call_method is an optimized virtual method candidate otherwise.
105 WarmCallInfo* ok_to_inline(ciMethod *call_method, JVMState* caller_jvms, ciCallProfile& profile, WarmCallInfo* wci);
|