src/share/vm/opto/compile.hpp

rev 3898 : 8005031: Some cleanup in c2 to prepare for incremental inlining support
Summary: collection of small changes to prepare for incremental inlining.
Reviewed-by:

@@ -28,10 +28,11 @@
 #include "asm/codeBuffer.hpp"
 #include "ci/compilerInterface.hpp"
 #include "code/debugInfoRec.hpp"
 #include "code/exceptionHandlerTable.hpp"
 #include "compiler/compilerOracle.hpp"
+#include "compiler/compileBroker.hpp"
 #include "libadt/dict.hpp"
 #include "libadt/port.hpp"
 #include "libadt/vectset.hpp"
 #include "memory/resourceArea.hpp"
 #include "opto/idealGraphPrinter.hpp"

@@ -367,10 +368,65 @@
   WarmCallInfo*         _warm_calls;            // Sorted work-list for heat-based inlining.
 
   GrowableArray<CallGenerator*> _late_inlines;  // List of CallGenerators to be revisited after
                                                 // main parsing has finished.
 
+  // Inlining may not happen in parse order which would make
+  // PrintInlining output confusing. Keep track of PrintInlining
+  // pieces in order.
+  class PrintInliningEvent : public ResourceObj {
+   private:
+    CallGenerator* _cg;
+    stringStream* _ss;
+
+   public:
+    PrintInliningEvent() 
+      : _cg(NULL) { _ss = new stringStream(); }
+
+    stringStream* ss() const { return _ss; }
+    CallGenerator* cg() const { return _cg; }
+    void set_cg(CallGenerator* cg) { _cg = cg; }
+  };
+  
+  GrowableArray<PrintInliningEvent>* _print_inlining_list;
+  int _print_inlining;
+
+ public:
+
+  outputStream* print_inlining_stream() const {
+    return _print_inlining_list->at(_print_inlining).ss();
+  }
+
+  void print_inlining_skip(CallGenerator* cg) {
+    if (PrintInlining) {
+      _print_inlining_list->at(_print_inlining).set_cg(cg);
+      _print_inlining++;
+      _print_inlining_list->insert_before(_print_inlining, PrintInliningEvent());
+    }
+  }
+
+  void print_inlining_insert(CallGenerator* cg) {
+    if (PrintInlining) {
+      for (int i = 0; i < _print_inlining_list->length(); i++) {
+        if (_print_inlining_list->at(i).cg() == cg) {
+          _print_inlining_list->insert_before(i+1, PrintInliningEvent());
+          _print_inlining = i+1;
+          _print_inlining_list->at(i).set_cg(NULL);
+          return;
+        }
+      }
+      ShouldNotReachHere();
+    }
+  }
+
+  void print_inlining(ciMethod* method, int inline_level, int bci, const char* msg = NULL) {
+    stringStream ss;
+    CompileTask::print_inlining(&ss, method, inline_level, bci, msg);
+    print_inlining_stream()->print(ss.as_string());
+  }
+
+ private:
   // Matching, CFG layout, allocation, code generation
   PhaseCFG*             _cfg;                   // Results of CFG finding
   bool                  _select_24_bit_instr;   // We selected an instruction with a 24-bit result
   bool                  _in_24_bit_fp_mode;     // We are emitting instructions with 24-bit results
   int                   _java_calls;            // Number of java calls in the method

@@ -589,11 +645,11 @@
                                            }
   uint         dead_node_count()           { return _dead_node_count; }
   void         reset_dead_node_list()      { _dead_node_list.Reset();
                                              _dead_node_count = 0;
                                            }
-  uint          live_nodes()               {
+  uint          live_nodes() const         {
     int  val = _unique - _dead_node_count;
     assert (val >= 0, err_msg_res("number of tracked dead nodes %d more than created nodes %d", _unique, _dead_node_count));
             return (uint) val;
                                            }
 #ifdef ASSERT

@@ -709,10 +765,12 @@
   WarmCallInfo* pop_warm_call();
 
   // Record this CallGenerator for inlining at the end of parsing.
   void              add_late_inline(CallGenerator* cg) { _late_inlines.push(cg); }
 
+  void dump_inlining();
+
   // Matching, CFG layout, allocation, code generation
   PhaseCFG*         cfg()                       { return _cfg; }
   bool              select_24_bit_instr() const { return _select_24_bit_instr; }
   bool              in_24_bit_fp_mode() const   { return _in_24_bit_fp_mode; }
   bool              has_java_calls() const      { return _java_calls > 0; }