Issue #2183: Simplify and optimize bytecode for list comprehensions.
diff --git a/Lib/test/test_dis.py b/Lib/test/test_dis.py
index fd508a9..6fa437b 100644
--- a/Lib/test/test_dis.py
+++ b/Lib/test/test_dis.py
@@ -54,29 +54,25 @@
dis_bug1333982 = """\
%-4d 0 LOAD_CONST 1 (0)
- 3 JUMP_IF_TRUE 41 (to 47)
+ 3 JUMP_IF_TRUE 33 (to 39)
6 POP_TOP
7 LOAD_GLOBAL 0 (AssertionError)
10 BUILD_LIST 0
- 13 DUP_TOP
- 14 STORE_FAST 1 (_[1])
- 17 LOAD_FAST 0 (x)
- 20 GET_ITER
- >> 21 FOR_ITER 13 (to 37)
- 24 STORE_FAST 2 (s)
- 27 LOAD_FAST 1 (_[1])
- 30 LOAD_FAST 2 (s)
- 33 LIST_APPEND
- 34 JUMP_ABSOLUTE 21
- >> 37 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 40 LOAD_CONST 2 (1)
- 43 BINARY_ADD
- 44 RAISE_VARARGS 2
- >> 47 POP_TOP
+ %-4d >> 32 LOAD_CONST 2 (1)
+ 35 BINARY_ADD
+ 36 RAISE_VARARGS 2
+ >> 39 POP_TOP
- %-4d 48 LOAD_CONST 0 (None)
- 51 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)