iseq: reduce array allocations for simple sequences

* compile.c (iseq_add_mark_object): Use new rb_iseq_add_mark_object().

* insns.def (setinlinecache): Ditto.

* iseq.c (rb_iseq_add_mark_object): New function to allocate
  iseq->mark_ary on demand. [Bug #8142]

* iseq.h (rb_iseq_add_mark_object): Ditto.

* iseq.c (prepare_iseq_build): Avoid allocating mark_ary until needed.

* iseq.c (rb_iseq_build_for_ruby2cext): Ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40336 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/insns.def b/insns.def
index d61e99c4d0..fc4db92d4f 100644
--- a/insns.def
+++ b/insns.def
@@ -1237,7 +1237,7 @@ setinlinecache
 (VALUE val)
 {
     if (ic->ic_value.value == Qundef) {
-	rb_ary_push(GET_ISEQ()->mark_ary, val);
+	rb_iseq_add_mark_object(GET_ISEQ(), val);
     }
     ic->ic_value.value = val;
     ic->ic_vmstat = GET_VM_STATE_VERSION() - ruby_vm_const_missing_count;