From 196a18292115efc8bf2ee2e580bddf13f492e77d Mon Sep 17 00:00:00 2001
From: ko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 13 Jul 2009 04:44:20 +0000
Subject: * insns.def, vm_insnhelper.c (getinstancevariable):   fix to use
 inline cache. * compile.c: fix to skip inline cache entry (IC).  IC is added 
  automatically by compiler. * insns.def, vm_insnhelper.h: fix IC positions. *
 iseq.c: increment minor_version of ISeq because of above change.

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@24067 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 vm_insnhelper.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

(limited to 'vm_insnhelper.c')

diff --git a/vm_insnhelper.c b/vm_insnhelper.c
index de1f812d2..de53d533b 100644
--- a/vm_insnhelper.c
+++ b/vm_insnhelper.c
@@ -1171,6 +1171,53 @@ vm_get_cvar_base(NODE *cref)
     return klass;
 }
 
+static VALUE
+vm_getivar(VALUE obj, ID id, IC ic)
+{
+#if 1
+    if (TYPE(obj) ==  T_OBJECT) {
+	VALUE val = Qundef;
+	VALUE klass = RBASIC(obj)->klass;
+
+	if (ic->ic_class == klass) {
+	    long index = ic->ic_vmstat;
+	    long len = ROBJECT_NUMIV(obj);
+	    VALUE *ptr = ROBJECT_IVPTR(obj);
+
+	    if (index < len) {
+		val = ptr[index];
+	    }
+	}
+	else {
+	    st_data_t index;
+	    long len = ROBJECT_NUMIV(obj);
+	    VALUE *ptr = ROBJECT_IVPTR(obj);
+	    struct st_table *iv_index_tbl = ROBJECT_IV_INDEX_TBL(obj);
+
+	    if (iv_index_tbl) {
+		if (st_lookup(iv_index_tbl, id, &index)) {
+		    if (index < len) {
+			val = ptr[index];
+		    }
+		    ic->ic_class = CLASS_OF(obj);
+		    ic->ic_vmstat = index;
+		}
+	    }
+	}
+	if (UNLIKELY(val == Qundef)) {
+	    rb_warning("instance variable %s not initialized", rb_id2name(id));
+	    val = Qnil;
+	}
+	return val;
+    }
+    else {
+	return rb_ivar_get(obj, id);
+    }
+#else
+    return rb_ivar_get(obj, id);
+#endif
+}
+
 static inline NODE *
 vm_method_search(VALUE id, VALUE klass, IC ic)
 {
-- 
cgit