Author: Alex Gaynor <[email protected]>
Branch: stdlib-2.7.8
Changeset: r73000:d52ea60276d3
Date: 2014-08-23 08:33 -0700
http://bitbucket.org/pypy/pypy/changeset/d52ea60276d3/
Log: Minimize the stack effect when these instructions are used (from
CPython
diff --git a/pypy/interpreter/astcompiler/assemble.py
b/pypy/interpreter/astcompiler/assemble.py
--- a/pypy/interpreter/astcompiler/assemble.py
+++ b/pypy/interpreter/astcompiler/assemble.py
@@ -406,6 +406,9 @@
target_depth += 3
if target_depth > self._max_depth:
self._max_depth = target_depth
+ elif (jump_op == ops.JUMP_IF_TRUE_OR_POP or
+ jump_op == ops.JUMP_IF_FALSE_OR_POP):
+ depth -= 1
self._next_stack_depth_walk(instr.jump[0], target_depth)
if jump_op == ops.JUMP_ABSOLUTE or jump_op == ops.JUMP_FORWARD:
# Nothing more can occur.
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