Initial support for debugger frame state in Turbofan.

src/compiler/instruction-selector-impl.h

Index: src/compiler/instruction-selector-impl.h
diff --git a/src/compiler/instruction-selector-impl.h b/src/compiler/instruction-selector-impl.h
index 6421b23c739d46598c8085892546d64e37a532c8..e730866982c671c73b2175ff00a3bc2f3febdf93 100644
--- a/src/compiler/instruction-selector-impl.h
+++ b/src/compiler/instruction-selector-impl.h
@@ -346,22 +346,27 @@ class FlagsContinuation V8_FINAL {
 // TODO(bmeurer): Get rid of the CallBuffer business and make
 // InstructionSelector::VisitCall platform independent instead.
 struct CallBuffer {
-  CallBuffer(Zone* zone, CallDescriptor* descriptor);
+  CallBuffer(Zone* zone, CallDescriptor* descriptor,
+             FrameStateDescriptor* frame_state);
 
-  int output_count;
   CallDescriptor* descriptor;
-  Node** output_nodes;
-  InstructionOperand** outputs;
-  InstructionOperand** fixed_and_control_args;
-  int fixed_count;
-  Node** pushed_nodes;
-  int pushed_count;
+  FrameStateDescriptor* frame_state_descriptor;
+  std::vector<Node*> output_nodes;

[Benedikt Meurer, 2014/08/21 08:19:29]

Can we allocate in the Zone instead? I.e. use zone_allocator<Node*> instead of
the default allocator?

[Jarin, 2014/08/21 09:54:42]

Done.

+  std::vector<InstructionOperand*> outputs;
+  std::vector<InstructionOperand*> instruction_args;
+  std::vector<Node*> pushed_nodes;
 
   int input_count() { return descriptor->InputCount(); }

[Benedikt Meurer, 2014/08/21 08:19:29]

const

[Jarin, 2014/08/21 09:54:41]

Done.

 
-  int control_count() { return descriptor->CanLazilyDeoptimize() ? 2 : 0; }
+  int frame_state_count() { return descriptor->FrameStateCount(); }

[Benedikt Meurer, 2014/08/21 08:19:29]

const

[Jarin, 2014/08/21 09:54:42]

Done.

+
+  int frame_state_value_count() {

[Benedikt Meurer, 2014/08/21 08:19:29]

const

[Jarin, 2014/08/21 09:54:41]

Done.

+    return (frame_state_descriptor == NULL)
+               ? 0
+               : (frame_state_descriptor->size() + 1);
+  }
 
-  int fixed_and_control_count() { return fixed_count + control_count(); }
+  int control_count() { return descriptor->CanLazilyDeoptimize() ? 2 : 0; }
 };
 
 }  // namespace compiler