* compile.c (NODE_NEXT, NODE_REDO): add dummy putnil instruction to

fix stack consistency error.  [ruby-core:28172]

* bootstraptest/test_jump.rb: add a test for above.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27424 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,10 @@
+Wed Apr 21 00:26:17 2010  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* compile.c (NODE_NEXT, NODE_REDO): add dummy putnil instruction to
+	  fix stack consistency error.  [ruby-core:28172]
+
+	* bootstraptest/test_jump.rb: add a test for above.
+
 Wed Apr 21 00:16:44 2010  Yusuke Endoh  <mame@tsg.ne.jp>
 
 	* ext/zlib/zlib.c (rb_deflate_params): update buf_filled count because

bootstraptest/test_jump.rb

@@ -271,3 +271,14 @@ assert_normal_exit %q{
     end
   end.call
 }
+
+assert_normal_exit %q{
+  while true
+    begin
+      raise
+      next
+    rescue
+    end
+    break
+  end
+}, '[ruby-core:28172]'

compile.c

@@ -3359,6 +3359,9 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	    ADD_ADJUST(ret, nd_line(node), iseq->compile_data->redo_label);
 	    ADD_INSNL(ret, nd_line(node), jump, iseq->compile_data->start_label);
 	    ADD_ADJUST_RESTORE(ret, splabel);
+	    if (!poped) {
+		ADD_INSN(ret, nd_line(node), putnil);
+	    }
 	}
 	else if (iseq->compile_data->end_label) {
 	    LABEL *splabel = NEW_LABEL(0);
@@ -3424,6 +3427,9 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	    add_ensure_iseq(ret, iseq, 0);
 	    ADD_INSNL(ret, nd_line(node), jump, iseq->compile_data->redo_label);
 	    ADD_ADJUST_RESTORE(ret, splabel);
+	    if (!poped) {
+		ADD_INSN(ret, nd_line(node), putnil);
+	    }
 	}
 	else if (iseq->type == ISEQ_TYPE_EVAL) {
 	  redo_in_eval: