* compile.c (compile_array_): modify wrong optimization.

  A script "[print(1)]; print(2)" should output "12".
  However, the compiler had eliminted "[print(1)]" expression
  because it is void expression (unused array).
  Of course, side-effect should be remained.
  This issue is reported by Masaya Tarui.
* bootstraptest/test_literal.rb: add a test.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38751 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 5 insertions, 0 deletions

diff --git a/compile.c b/compile.c
index 21bb780ddb..5e0b61572e 100644
--- a/compile.c
+++ b/compile.c
@@ -2435,6 +2435,7 @@ compile_array_(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE* node_root,
 			else {
 			    ADD_INSN(anchor, line, concatarray);
 			}
+
 			APPEND_LIST(ret, anchor);
 			break;
 		      case COMPILE_ARRAY_TYPE_HASH:
@@ -2461,6 +2462,10 @@ compile_array_(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE* node_root,
 			break;
 		    }
 		}
+		else {
+		    /* poped */
+		    APPEND_LIST(ret, anchor);
+		}
 	    }
 	}
     }