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src/hotspot/share/opto/c2compiler.hpp

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rev 51888 : 8177899: Tests fail due to code cache exhaustion on machines with many cores
Summary: Implemented upper limit on CICompilerCount based on code cache size.
Reviewed-by: kvn, mdoerr


   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_VM_OPTO_C2COMPILER_HPP
  26 #define SHARE_VM_OPTO_C2COMPILER_HPP
  27 
  28 #include "compiler/abstractCompiler.hpp"

  29 
  30 class C2Compiler : public AbstractCompiler {
  31  private:
  32   static bool init_c2_runtime();
  33 
  34 public:
  35   C2Compiler() : AbstractCompiler(compiler_c2) {}
  36 
  37   // Name
  38   const char *name() { return "C2"; }
  39   void initialize();
  40 
  41   // Compilation entry point for methods
  42   void compile_method(ciEnv* env,
  43                       ciMethod* target,
  44                       int entry_bci,
  45                       DirectiveSet* directive);
  46 
  47   // sentinel value used to trigger backtracking in compile_method().
  48   static const char* retry_no_subsuming_loads();
  49   static const char* retry_no_escape_analysis();
  50   static const char* retry_class_loading_during_parsing();
  51 
  52   // Print compilation timers and statistics
  53   void print_timers();
  54 
  55   // Return true if the intrinsification of a method supported by the compiler
  56   // assuming a non-virtual dispatch. (A virtual dispatch is
  57   // possible for only a limited set of available intrinsics whereas
  58   // a non-virtual dispatch is possible for all available intrinsics.)
  59   // Return false otherwise.
  60   virtual bool is_intrinsic_supported(const methodHandle& method) {
  61     return is_intrinsic_supported(method, false);
  62   }
  63 
  64   // Check if the compiler supports an intrinsic for 'method' given the
  65   // the dispatch mode specified by the 'is_virtual' parameter.
  66   virtual bool is_intrinsic_supported(const methodHandle& method, bool is_virtual);
  67 
  68   // Initial size of the code buffer (may be increased at runtime)
  69   static int initial_code_buffer_size();
  70 };
  71 
  72 #endif // SHARE_VM_OPTO_C2COMPILER_HPP


   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_VM_OPTO_C2COMPILER_HPP
  26 #define SHARE_VM_OPTO_C2COMPILER_HPP
  27 
  28 #include "compiler/abstractCompiler.hpp"
  29 #include "opto/output.hpp"
  30 
  31 class C2Compiler : public AbstractCompiler {
  32  private:
  33   static bool init_c2_runtime();
  34 
  35 public:
  36   C2Compiler() : AbstractCompiler(compiler_c2) {}
  37 
  38   // Name
  39   const char *name() { return "C2"; }
  40   void initialize();
  41 
  42   // Compilation entry point for methods
  43   void compile_method(ciEnv* env,
  44                       ciMethod* target,
  45                       int entry_bci,
  46                       DirectiveSet* directive);
  47 
  48   // sentinel value used to trigger backtracking in compile_method().
  49   static const char* retry_no_subsuming_loads();
  50   static const char* retry_no_escape_analysis();
  51   static const char* retry_class_loading_during_parsing();
  52 
  53   // Print compilation timers and statistics
  54   void print_timers();
  55 
  56   // Return true if the intrinsification of a method supported by the compiler
  57   // assuming a non-virtual dispatch. (A virtual dispatch is
  58   // possible for only a limited set of available intrinsics whereas
  59   // a non-virtual dispatch is possible for all available intrinsics.)
  60   // Return false otherwise.
  61   virtual bool is_intrinsic_supported(const methodHandle& method) {
  62     return is_intrinsic_supported(method, false);
  63   }
  64 
  65   // Check if the compiler supports an intrinsic for 'method' given the
  66   // the dispatch mode specified by the 'is_virtual' parameter.
  67   virtual bool is_intrinsic_supported(const methodHandle& method, bool is_virtual);
  68 
  69   // Initial size of the code buffer (may be increased at runtime)
  70   static int initial_code_buffer_size(int const_size = initial_const_capacity);
  71 };
  72 
  73 #endif // SHARE_VM_OPTO_C2COMPILER_HPP
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