From d0ba8c376e8d158b073b494cfed6ccba492e0882 Mon Sep 17 00:00:00 2001
From: Andreas Kloeckner <inform@tiker.net>
Date: Sat, 18 Apr 2015 15:14:34 -0500
Subject: [PATCH] Fix no-subst/matching logic in ExpandingSubstitutionMapper
---
loopy/symbolic.py | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/loopy/symbolic.py b/loopy/symbolic.py
index 9309fd041..09cce65cb 100644
--- a/loopy/symbolic.py
+++ b/loopy/symbolic.py
@@ -586,10 +586,10 @@ class ExpandingSubstitutionMapper(ExpandingIdentityMapper):
def map_variable(self, expr, expn_state):
result = self.subst_func(expr)
- if result is not None or not self.within(expn_state.stack):
- return result
- else:
+ if result is None or not self.within(expn_state.stack):
return ExpandingIdentityMapper.map_variable(self, expr, expn_state)
+ else:
+ return result
# }}}
--
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