* vm_insnhelper.c (vm_getivar, vm_setivar): support index inline cache

  with rb_call_info_t to speedup `attr' getter and setter.
  Cached index is stored in rb_call_info_t::aux::index.
  `index' == 0 means not cached. `index' > 0 means cached and cached
  index is `index - 1'.
* insns.def ((get|set)instancevariable): use new wrapper functions
  vm_(get|set)instancevariable() defined in vm_insnhelper.c.
* vm_core.h (rb_call_info_t::aux): introduce new union data because
  opt_pc can share with index.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37228 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 1 deletions

diff --git a/vm_core.h b/vm_core.h
index c53d68601c..d021a91daa 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -160,9 +160,12 @@ typedef struct rb_call_info_struct {
 
     /* temporary values for method calling */
     int argc;
-    int opt_pc;
     struct rb_block_struct *blockptr;
     VALUE recv;
+    union {
+	int opt_pc; /* used by iseq */
+	long index; /* used by ivar */
+    } aux;
 
     VALUE (*call)(struct rb_thread_struct *th, struct rb_control_frame_struct *cfp, struct rb_call_info_struct *ci);
 } rb_call_info_t;