sync RClass::ext::iv_index_tbl

iv_index_tbl manages instance variable indexes (ID -> index).
This data structure should be synchronized with other ractors
so introduce some VM locks.

This patch also introduced atomic ivar cache used by
set/getinlinecache instructions. To make updating ivar cache (IVC),
we changed iv_index_tbl data structure to manage (ID -> entry)
and an entry points serial and index. IVC points to this entry so
that cache update becomes atomically.

1 files changed, 2 insertions, 2 deletions

diff --git a/insns.def b/insns.def
index f6f802f916..3dd65f12c7 100644
--- a/insns.def
+++ b/insns.def
@@ -213,7 +213,7 @@ getinstancevariable
 /* "instance variable not initialized" warning can be hooked. */
 // attr bool leaf = false; /* has rb_warning() */
 {
-    val = vm_getinstancevariable(GET_SELF(), id, ic);
+    val = vm_getinstancevariable(GET_ISEQ(), GET_SELF(), id, ic);
 }
 
 /* Set value of instance variable id of self to val. */
@@ -224,7 +224,7 @@ setinstancevariable
 ()
 // attr bool leaf = false; /* has rb_check_frozen_internal() */
 {
-    vm_setinstancevariable(GET_SELF(), id, val, ic);
+    vm_setinstancevariable(GET_ISEQ(), GET_SELF(), id, val, ic);
 }
 
 /* Get value of class variable id of klass as val. */