From e413c8ca30c2e5ac99664f2cc55fe589f40d5c7f Mon Sep 17 00:00:00 2001
From: Andreas Kloeckner <inform@tiker.net>
Date: Mon, 24 Oct 2011 00:38:38 -0400
Subject: [PATCH] Better error message for wrong invocation of reduction ops.
---
loopy/symbolic.py | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/loopy/symbolic.py b/loopy/symbolic.py
index 054ed8781..725fbad3b 100644
--- a/loopy/symbolic.py
+++ b/loopy/symbolic.py
@@ -109,8 +109,11 @@ class FunctionToPrimitiveMapper(IdentityMapper):
raise TypeError("invalid 'reduce' calling sequence")
else:
from loopy.kernel import parse_reduction_op
- if (parse_reduction_op(expr.function.name)
- and len(expr.parameters) == 2):
+ if parse_reduction_op(expr.function.name):
+ if len(expr.parameters) != 2:
+ raise RuntimeError("invalid invocation of "
+ "reduction operation '%s'" % expr.function.name)
+
operation = expr.function
inames, red_expr = expr.parameters
else:
--
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