Index: Python/ceval.c
===================================================================
--- Python/ceval.c	(revision 42780)
+++ Python/ceval.c	(working copy)
@@ -1245,9 +1245,8 @@
 
 		case LIST_APPEND:
 			w = POP();
-			v = POP();
+			v = *(stack_pointer - oparg);
 			err = PyList_Append(v, w);
-			Py_DECREF(v);
 			Py_DECREF(w);
 			if (err == 0) {
 				PREDICT(JUMP_ABSOLUTE);
Index: Python/compile.c
===================================================================
--- Python/compile.c	(revision 42780)
+++ Python/compile.c	(working copy)
@@ -1407,6 +1407,9 @@
 		case FOR_ITER:
 			return 1;
 
+		case LIST_APPEND:
+        	return -1;
+
 		case STORE_ATTR:
 			return -2;
 		case DELETE_ATTR:
@@ -3101,9 +3104,8 @@
 }
 
 static int
-compiler_listcomp_generator(struct compiler *c, PyObject *tmpname,
-			    asdl_seq *generators, int gen_index, 
-			    expr_ty elt)
+compiler_listcomp_generator(struct compiler *c, asdl_seq *generators,
+                            int gen_index, expr_ty elt)
 {
 	/* generate code for the iterator, then each of the ifs,
 	   and then write to the element */
@@ -3140,17 +3142,15 @@
 	} 
 
 	if (++gen_index < asdl_seq_LEN(generators))
-	    if (!compiler_listcomp_generator(c, tmpname, 
-					     generators, gen_index, elt))
+	    if (!compiler_listcomp_generator(c, generators, gen_index, elt))
 		return 0;
 
 	/* only append after the last for generator */
 	if (gen_index >= asdl_seq_LEN(generators)) {
-	    if (!compiler_nameop(c, tmpname, Load))
-		return 0;
 	    VISIT(c, expr, elt);
-	    ADDOP_I(c, CALL_FUNCTION, 1);
-	    ADDOP(c, POP_TOP);
+        /* Each generator puts an iterator on the stack; add another one
+        to get to the list itself */
+	    ADDOP_I(c, LIST_APPEND, 1 + asdl_seq_LEN(generators));
 
 	    compiler_use_next_block(c, skip);
 	}
@@ -3162,10 +3162,6 @@
 	} 
 	ADDOP_JABS(c, JUMP_ABSOLUTE, start);
 	compiler_use_next_block(c, anchor);
-	/* delete the append method added to locals */
-	if (gen_index == 1)
-	    if (!compiler_nameop(c, tmpname, Del))
-		return 0;
 	
 	return 1;
 }
@@ -3173,28 +3169,12 @@
 static int
 compiler_listcomp(struct compiler *c, expr_ty e)
 {
-	identifier tmp;
-	int rc = 0;
-	static identifier append;
 	asdl_seq *generators = e->v.ListComp.generators;
 
 	assert(e->kind == ListComp_kind);
-	if (!append) {
-		append = PyString_InternFromString("append");
-		if (!append)
-			return 0;
-	}
-	tmp = compiler_new_tmpname(c);
-	if (!tmp)
-		return 0;
+	
 	ADDOP_I(c, BUILD_LIST, 0);
-	ADDOP(c, DUP_TOP);
-	ADDOP_O(c, LOAD_ATTR, append, names);
-	if (compiler_nameop(c, tmp, Store))
-	    rc = compiler_listcomp_generator(c, tmp, generators, 0, 
-					     e->v.ListComp.elt);
-	Py_DECREF(tmp);
-	return rc;
+	return compiler_listcomp_generator(c, generators, 0, e->v.ListComp.elt);
 }
 
 static int
Index: Include/opcode.h
===================================================================
--- Include/opcode.h	(revision 42780)
+++ Include/opcode.h	(working copy)
@@ -22,7 +22,6 @@
 
 #define UNARY_INVERT	15
 
-#define LIST_APPEND	18
 #define BINARY_POWER	19
 
 #define BINARY_MULTIPLY	20
@@ -89,6 +88,8 @@
 #define UNPACK_SEQUENCE	92	/* Number of sequence items */
 #define FOR_ITER	93
 
+#define LIST_APPEND	94  /* Number of stack items to look back */
+
 #define STORE_ATTR	95	/* Index in name list */
 #define DELETE_ATTR	96	/* "" */
 #define STORE_GLOBAL	97	/* "" */
Index: Lib/opcode.py
===================================================================
--- Lib/opcode.py	(revision 42780)
+++ Lib/opcode.py	(working copy)
@@ -58,7 +58,6 @@
 
 def_op('UNARY_INVERT', 15)
 
-def_op('LIST_APPEND', 18)
 def_op('BINARY_POWER', 19)
 def_op('BINARY_MULTIPLY', 20)
 def_op('BINARY_DIVIDE', 21)
@@ -128,6 +127,7 @@
 def_op('UNPACK_SEQUENCE', 92)   # Number of tuple items
 jrel_op('FOR_ITER', 93)
 
+def_op('LIST_APPEND', 94)       # Number of stack items to look back
 name_op('STORE_ATTR', 95)       # Index in name list
 name_op('DELETE_ATTR', 96)      # ""
 name_op('STORE_GLOBAL', 97)     # ""
Index: Lib/test/test_dis.py
===================================================================
--- Lib/test/test_dis.py	(revision 42780)
+++ Lib/test/test_dis.py	(working copy)
@@ -54,31 +54,25 @@
 
 dis_bug1333982 = """\
  %-4d         0 LOAD_CONST               1 (0)
-              3 JUMP_IF_TRUE            47 (to 53)
+              3 JUMP_IF_TRUE            33 (to 39)
               6 POP_TOP
               7 LOAD_GLOBAL              0 (AssertionError)
              10 BUILD_LIST               0
-             13 DUP_TOP
-             14 LOAD_ATTR                1 (append)
-             17 STORE_FAST               1 (_[1])
-             20 LOAD_FAST                0 (x)
-             23 GET_ITER
-        >>   24 FOR_ITER                16 (to 43)
-             27 STORE_FAST               2 (s)
-             30 LOAD_FAST                1 (_[1])
-             33 LOAD_FAST                2 (s)
-             36 CALL_FUNCTION            1
-             39 POP_TOP
-             40 JUMP_ABSOLUTE           24
-        >>   43 DELETE_FAST              1 (_[1])
+             13 LOAD_FAST                0 (x)
+             16 GET_ITER
+        >>   17 FOR_ITER                12 (to 32)
+             20 STORE_FAST               1 (s)
+             23 LOAD_FAST                1 (s)
+             26 LIST_APPEND              2
+             29 JUMP_ABSOLUTE           17
 
- %-4d        46 LOAD_CONST               2 (1)
-             49 BINARY_ADD
-             50 RAISE_VARARGS            2
-        >>   53 POP_TOP
+ %-4d   >>   32 LOAD_CONST               2 (1)
+             35 BINARY_ADD
+             36 RAISE_VARARGS            2
+        >>   39 POP_TOP
 
- %-4d        54 LOAD_CONST               0 (None)
-             57 RETURN_VALUE
+ %-4d        40 LOAD_CONST               0 (None)
+             43 RETURN_VALUE
 """%(bug1333982.func_code.co_firstlineno + 1,
      bug1333982.func_code.co_firstlineno + 2,
      bug1333982.func_code.co_firstlineno + 3)