28 #include "code/nmethod.hpp"
29 #include "compiler/compileBroker.hpp"
30 #include "memory/allocation.hpp"
31 #include "runtime/vm_operations.hpp"
32 #include "utilities/growableArray.hpp"
33
34 // The CompilationPolicy selects which method (if any) should be compiled.
35 // It also decides which methods must always be compiled (i.e., are never
36 // interpreted).
37 class CompileTask;
38 class CompileQueue;
39
40 class CompilationPolicy : public CHeapObj<mtCompiler> {
41 static CompilationPolicy* _policy;
42 // Accumulated time
43 static elapsedTimer _accumulated_time;
44
45 static bool _in_vm_startup;
46
47 // m must be compiled before executing it
48 static bool must_be_compiled(methodHandle m, int comp_level = CompLevel_all);
49
50 public:
51 static void set_in_vm_startup(bool in_vm_startup) { _in_vm_startup = in_vm_startup; }
52 static void completed_vm_startup();
53 static bool delay_compilation_during_startup() { return _in_vm_startup; }
54
55 // If m must_be_compiled then request a compilation from the CompileBroker.
56 // This supports the -Xcomp option.
57 static void compile_if_required(methodHandle m, TRAPS);
58
59 // m is allowed to be compiled
60 static bool can_be_compiled(methodHandle m, int comp_level = CompLevel_all);
61 // m is allowed to be osr compiled
62 static bool can_be_osr_compiled(methodHandle m, int comp_level = CompLevel_all);
63 static bool is_compilation_enabled();
64 static void set_policy(CompilationPolicy* policy) { _policy = policy; }
65 static CompilationPolicy* policy() { return _policy; }
66
67 static CompileTask* select_task_helper(CompileQueue* compile_queue);
68
69 // Profiling
70 elapsedTimer* accumulated_time() { return &_accumulated_time; }
71 void print_time() PRODUCT_RETURN;
72 // Return initial compile level that is used with Xcomp
73 virtual CompLevel initial_compile_level() = 0;
74 virtual int compiler_count(CompLevel comp_level) = 0;
75 // main notification entry, return a pointer to an nmethod if the OSR is required,
76 // returns NULL otherwise.
77 virtual nmethod* event(const methodHandle& method, const methodHandle& inlinee, int branch_bci, int bci, CompLevel comp_level, CompiledMethod* nm, JavaThread* thread) = 0;
78 // safepoint() is called at the end of the safepoint
79 virtual void do_safepoint_work() = 0;
80 // reprofile request
81 virtual void reprofile(ScopeDesc* trap_scope, bool is_osr) = 0;
82 // delay_compilation(method) can be called by any component of the runtime to notify the policy
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28 #include "code/nmethod.hpp"
29 #include "compiler/compileBroker.hpp"
30 #include "memory/allocation.hpp"
31 #include "runtime/vm_operations.hpp"
32 #include "utilities/growableArray.hpp"
33
34 // The CompilationPolicy selects which method (if any) should be compiled.
35 // It also decides which methods must always be compiled (i.e., are never
36 // interpreted).
37 class CompileTask;
38 class CompileQueue;
39
40 class CompilationPolicy : public CHeapObj<mtCompiler> {
41 static CompilationPolicy* _policy;
42 // Accumulated time
43 static elapsedTimer _accumulated_time;
44
45 static bool _in_vm_startup;
46
47 // m must be compiled before executing it
48 static bool must_be_compiled(const methodHandle& m, int comp_level = CompLevel_all);
49
50 public:
51 static void set_in_vm_startup(bool in_vm_startup) { _in_vm_startup = in_vm_startup; }
52 static void completed_vm_startup();
53 static bool delay_compilation_during_startup() { return _in_vm_startup; }
54
55 // If m must_be_compiled then request a compilation from the CompileBroker.
56 // This supports the -Xcomp option.
57 static void compile_if_required(const methodHandle& m, TRAPS);
58
59 // m is allowed to be compiled
60 static bool can_be_compiled(const methodHandle& m, int comp_level = CompLevel_all);
61 // m is allowed to be osr compiled
62 static bool can_be_osr_compiled(const methodHandle& m, int comp_level = CompLevel_all);
63 static bool is_compilation_enabled();
64 static void set_policy(CompilationPolicy* policy) { _policy = policy; }
65 static CompilationPolicy* policy() { return _policy; }
66
67 static CompileTask* select_task_helper(CompileQueue* compile_queue);
68
69 // Profiling
70 elapsedTimer* accumulated_time() { return &_accumulated_time; }
71 void print_time() PRODUCT_RETURN;
72 // Return initial compile level that is used with Xcomp
73 virtual CompLevel initial_compile_level() = 0;
74 virtual int compiler_count(CompLevel comp_level) = 0;
75 // main notification entry, return a pointer to an nmethod if the OSR is required,
76 // returns NULL otherwise.
77 virtual nmethod* event(const methodHandle& method, const methodHandle& inlinee, int branch_bci, int bci, CompLevel comp_level, CompiledMethod* nm, JavaThread* thread) = 0;
78 // safepoint() is called at the end of the safepoint
79 virtual void do_safepoint_work() = 0;
80 // reprofile request
81 virtual void reprofile(ScopeDesc* trap_scope, bool is_osr) = 0;
82 // delay_compilation(method) can be called by any component of the runtime to notify the policy
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