From 2f34370891eff5328f0b7787d5830857fa5566d3 Mon Sep 17 00:00:00 2001
From: Andreas Kloeckner <inform@tiker.net>
Date: Mon, 30 Nov 2015 01:27:36 -0600
Subject: [PATCH] Fix lhs/rhs reversal typo, allow vectorizing 'vector =
scalar'
---
loopy/codegen/instruction.py | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/loopy/codegen/instruction.py b/loopy/codegen/instruction.py
index 75d71e4cb..c20727660 100644
--- a/loopy/codegen/instruction.py
+++ b/loopy/codegen/instruction.py
@@ -96,12 +96,12 @@ def generate_expr_instruction_code(kernel, insn, codegen_state):
vinfo = codegen_state.vectorization_info
vcheck = VectorizabilityChecker(
kernel, vinfo.iname, vinfo.length)
- rhs_is_vector = vcheck(insn.assignee)
- lhs_is_vector = vcheck(insn.expression)
+ lhs_is_vector = vcheck(insn.assignee)
+ rhs_is_vector = vcheck(insn.expression)
- if lhs_is_vector != rhs_is_vector:
+ if not lhs_is_vector and rhs_is_vector:
raise Unvectorizable(
- "LHS and RHS disagree on whether they are vectors")
+ "LHS is scalar, RHS is vector, cannot assign")
is_vector = lhs_is_vector
--
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