Refactor InvokeDexCallingConventionVisitor in Optimizing.

Change-Id: I7ede0f59d5109644887bf5d39201d4e1bf043f34

1 files changed, 19 insertions, 0 deletions

diff --git a/compiler/optimizing/code_generator.h b/compiler/optimizing/code_generator.h
index 6342f91684..beaff5cc4c 100644
--- a/compiler/optimizing/code_generator.h
+++ b/compiler/optimizing/code_generator.h
@@ -105,6 +105,25 @@ class SlowPathCode : public ArenaObject<kArenaAllocSlowPaths> {
   DISALLOW_COPY_AND_ASSIGN(SlowPathCode);
 };
 
+class InvokeDexCallingConventionVisitor {
+ public:
+  virtual Location GetNextLocation(Primitive::Type type) = 0;
+
+ protected:
+  InvokeDexCallingConventionVisitor() {}
+  virtual ~InvokeDexCallingConventionVisitor() {}
+
+  // The current index for core registers.
+  uint32_t gp_index_ = 0u;
+  // The current index for floating-point registers.
+  uint32_t float_index_ = 0u;
+  // The current stack index.
+  uint32_t stack_index_ = 0u;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(InvokeDexCallingConventionVisitor);
+};
+
 class CodeGenerator {
  public:
   // Compiles the graph to executable instructions. Returns whether the compilation