8283692: Add PrintIdealPhase that includes block scheduling

Reviewed-by: kvn, chagedorn

src/hotspot/share/opto/compile.cpp

@@ -548,7 +548,13 @@ void Compile::print_ideal_ir(const char* phase_name) {
                is_osr_compilation() ? " compile_kind='osr'" : "",
                phase_name);
   }
+  if (_output == nullptr) {
     root()->dump(9999);
+  } else {
+    // Dump the node blockwise if we have a scheduling
+    _output->print_scheduling();
+  }
+
   if (xtty != NULL) {
     xtty->tail("ideal");
   }
@@ -624,7 +630,8 @@ Compile::Compile( ciEnv* ci_env, ciMethod* target, int osr_bci,
                   _replay_inline_data(NULL),
                   _java_calls(0),
                   _inner_loops(0),
-                  _interpreter_frame_size(0)
+                  _interpreter_frame_size(0),
+                  _output(NULL)
 #ifndef PRODUCT
                   , _in_dump_cnt(0)
 #endif
@@ -898,6 +905,7 @@ Compile::Compile( ciEnv* ci_env,
     _java_calls(0),
     _inner_loops(0),
     _interpreter_frame_size(0),
+    _output(NULL),
 #ifndef PRODUCT
     _in_dump_cnt(0),
 #endif

src/hotspot/share/opto/output.cpp

@@ -324,6 +324,8 @@ void PhaseOutput::perform_mach_node_analysis() {
   bs->late_barrier_analysis();
 
   pd_perform_mach_node_analysis();
+
+  C->print_method(CompilerPhaseType::PHASE_MACHANALYSIS, 4);
 }
 
 // Convert Nodes to instruction bits and pass off to the VM
@@ -2117,6 +2119,14 @@ void PhaseOutput::ScheduleAndBundle() {
 #ifndef PRODUCT
   if (C->trace_opto_output()) {
     tty->print("\n---- After ScheduleAndBundle ----\n");
+    print_scheduling();
+  }
+#endif
+}
+
+#ifndef PRODUCT
+// Separated out so that it can be called directly from debugger
+void PhaseOutput::print_scheduling() {
   for (uint i = 0; i < C->cfg()->number_of_blocks(); i++) {
     tty->print("\nBB#%03d:\n", i);
     Block* block = C->cfg()->get_block(i);
@@ -2127,9 +2137,8 @@ void PhaseOutput::ScheduleAndBundle() {
       n->dump();
     }
   }
-  }
-#endif
 }
+#endif
 
 // See if this node fits into the present instruction bundle
 bool Scheduling::NodeFitsInBundle(Node *n) {

src/hotspot/share/opto/output.hpp

@@ -263,6 +263,7 @@ public:
   void BuildOopMaps();
 
 #ifndef PRODUCT
+  void print_scheduling();
   static void print_statistics();
 #endif
 };

src/hotspot/share/opto/phasetype.hpp

@@ -57,6 +57,7 @@
   flags(AFTER_BEAUTIFY_LOOPS,         "After beautify loops") \
   flags(BEFORE_MATCHING,              "Before matching") \
   flags(MATCHING,                     "After matching") \
+  flags(MACHANALYSIS,                 "After mach analysis") \
   flags(INCREMENTAL_INLINE,           "Incremental Inline") \
   flags(INCREMENTAL_INLINE_STEP,      "Incremental Inline Step") \
   flags(INCREMENTAL_INLINE_CLEANUP,   "Incremental Inline Cleanup") \