From 9b8de2d687e93c42b6e35626ea17e2de4b0a2788 Mon Sep 17 00:00:00 2001
From: Tim Warburton <timwar@caam.rice.edu>
Date: Tue, 25 Oct 2011 21:41:23 -0500
Subject: [PATCH] Only test that reduction depends on *one* of its inames, not
all of them.
---
loopy/symbolic.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/loopy/symbolic.py b/loopy/symbolic.py
index 25667eaa1..bb4fd83fb 100644
--- a/loopy/symbolic.py
+++ b/loopy/symbolic.py
@@ -512,7 +512,7 @@ class IndexVariableFinder(CombineMapper):
def map_reduction(self, expr):
result = self.rec(expr.expr)
- if not set(expr.inames) <= result:
+ if not (set(expr.inames) & result):
raise RuntimeError("reduction '%s' does not depend on "
"reduction inames" % expr)
if self.include_reduction_inames:
--
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