SF patch #910929: Optimize list comprehensions

Add a new opcode, LIST_APPEND, and apply it to the code generation for list comprehensions. Reduces the per-loop overhead by about a third.
2004-03-07 07:31:06 +00:00
parent bff63f0343
commit dd80f76265
6 changed files with 20 additions and 3 deletions
--- a/Lib/opcode.py
+++ b/Lib/opcode.py
@@ -56,6 +56,7 @@ def_op('UNARY_CONVERT', 13)

 def_op('UNARY_INVERT', 15)

+def_op('LIST_APPEND', 18)
 def_op('BINARY_POWER', 19)

 def_op('BINARY_MULTIPLY', 20)