Mercurial > hg > truffle

comparison src/share/vm/oops/methodData.hpp @ 20804:7848fc12602b

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merge with jdk8u40-b25
author Gilles Duboscq <gilles.m.duboscq@oracle.com>
date Tue, 07 Apr 2015 14:58:49 +0200
parents 99e5d0a7600e 600c44255e5f
children a04dfbf81bc4
comparison
equal deleted inserted replaced
20184:84105dcdb05b 20804:7848fc12602b
540 protected: 540 protected:
541 enum { 541 enum {
542 // null_seen: 542 // null_seen:
543 // saw a null operand (cast/aastore/instanceof) 543 // saw a null operand (cast/aastore/instanceof)
544 null_seen_flag = DataLayout::first_flag + 0 544 null_seen_flag = DataLayout::first_flag + 0
545
545 #ifdef GRAAL 546 #ifdef GRAAL
546 // bytecode threw any exception 547 // bytecode threw any exception
547 , exception_seen_flag = null_seen_flag + 1 548 , exception_seen_flag = null_seen_flag + 1
548 #endif 549 #endif
549 }; 550 };
566 567
567 // The null_seen flag bit is specially known to the interpreter. 568 // The null_seen flag bit is specially known to the interpreter.
568 // Consulting it allows the compiler to avoid setting up null_check traps. 569 // Consulting it allows the compiler to avoid setting up null_check traps.
569 bool null_seen() { return flag_at(null_seen_flag); } 570 bool null_seen() { return flag_at(null_seen_flag); }
570 void set_null_seen() { set_flag_at(null_seen_flag); } 571 void set_null_seen() { set_flag_at(null_seen_flag); }
572
571 #ifdef GRAAL 573 #ifdef GRAAL
572 // true if an exception was thrown at the specific BCI 574 // true if an exception was thrown at the specific BCI
573 bool exception_seen() { return flag_at(exception_seen_flag); } 575 bool exception_seen() { return flag_at(exception_seen_flag); }
574 void set_exception_seen() { set_flag_at(exception_seen_flag); } 576 void set_exception_seen() { set_flag_at(exception_seen_flag); }
575 #endif 577 #endif
2161 bool is_methodData() const volatile { return true; } 2163 bool is_methodData() const volatile { return true; }
2162 void initialize(); 2164 void initialize();
2163 2165
2164 // Whole-method sticky bits and flags 2166 // Whole-method sticky bits and flags
2165 enum { 2167 enum {
2166 _trap_hist_limit = 19 GRAAL_ONLY(+5), // decoupled from Deoptimization::Reason_LIMIT 2168 _trap_hist_limit = 20 GRAAL_ONLY(+5), // decoupled from Deoptimization::Reason_LIMIT
2167 _trap_hist_mask = max_jubyte, 2169 _trap_hist_mask = max_jubyte,
2168 _extra_data_count = 4 // extra DataLayout headers, for trap history 2170 _extra_data_count = 4 // extra DataLayout headers, for trap history
2169 }; // Public flag values 2171 }; // Public flag values
2170 private: 2172 private:
2171 uint _nof_decompiles; // count of all nmethod removals 2173 uint _nof_decompiles; // count of all nmethod removals
2172 uint _nof_overflow_recompiles; // recompile count, excluding recomp. bits 2174 uint _nof_overflow_recompiles; // recompile count, excluding recomp. bits
2173 uint _nof_overflow_traps; // trap count, excluding _trap_hist 2175 uint _nof_overflow_traps; // trap count, excluding _trap_hist
2174 union { 2176 union {
2175 intptr_t _align; 2177 intptr_t _align;
2176 u1 _array[GRAAL_ONLY(2*)_trap_hist_limit]; 2178 u1 _array[_trap_hist_limit];
2177 } _trap_hist; 2179 } _trap_hist;
2178 2180
2179 // Support for interprocedural escape analysis, from Thomas Kotzmann. 2181 // Support for interprocedural escape analysis, from Thomas Kotzmann.
2180 intx _eflags; // flags on escape information 2182 intx _eflags; // flags on escape information
2181 intx _arg_local; // bit set of non-escaping arguments 2183 intx _arg_local; // bit set of non-escaping arguments
2202 2204
2203 // Number of loops and blocks is computed when compiling the first 2205 // Number of loops and blocks is computed when compiling the first
2204 // time with C1. It is used to determine if method is trivial. 2206 // time with C1. It is used to determine if method is trivial.
2205 short _num_loops; 2207 short _num_loops;
2206 short _num_blocks; 2208 short _num_blocks;
2207 // Highest compile level this method has ever seen.
2208 u1 _highest_comp_level;
2209 // Same for OSR level
2210 u1 _highest_osr_comp_level;
2211 // Does this method contain anything worth profiling? 2209 // Does this method contain anything worth profiling?
2212 bool _would_profile; 2210 enum WouldProfile {unknown, no_profile, profile};
2211 WouldProfile _would_profile;
2213 2212
2214 #ifdef GRAAL 2213 #ifdef GRAAL
2215 // Support for HotSpotMethodData.setCompiledGraphSize(int) 2214 // Support for HotSpotMethodData.setCompiledGraphSize(int)
2216 int _graal_node_count; 2215 int _graal_node_count;
2217 #endif 2216 #endif
2381 static int rtm_state_offset_in_bytes() { 2380 static int rtm_state_offset_in_bytes() {
2382 return offset_of(MethodData, _rtm_state); 2381 return offset_of(MethodData, _rtm_state);
2383 } 2382 }
2384 #endif 2383 #endif
2385 2384
2386 void set_would_profile(bool p) { _would_profile = p; } 2385 void set_would_profile(bool p) { _would_profile = p ? profile : no_profile; }
2387 bool would_profile() const { return _would_profile; } 2386 bool would_profile() const { return _would_profile != no_profile; }
2388
2389 int highest_comp_level() const { return _highest_comp_level; }
2390 void set_highest_comp_level(int level) { _highest_comp_level = level; }
2391 int highest_osr_comp_level() const { return _highest_osr_comp_level; }
2392 void set_highest_osr_comp_level(int level) { _highest_osr_comp_level = level; }
2393 2387
2394 int num_loops() const { return _num_loops; } 2388 int num_loops() const { return _num_loops; }
2395 void set_num_loops(int n) { _num_loops = n; } 2389 void set_num_loops(int n) { _num_loops = n; }
2396 int num_blocks() const { return _num_blocks; } 2390 int num_blocks() const { return _num_blocks; }
2397 void set_num_blocks(int n) { _num_blocks = n; } 2391 void set_num_blocks(int n) { _num_blocks = n; }