From 3e8e4af7dfa563d15f126b5a5f6734356ff32857 Mon Sep 17 00:00:00 2001
From: Andreas Kloeckner <inform@tiker.net>
Date: Mon, 22 Jul 2013 10:47:51 -0400
Subject: [PATCH] Add (commented-out) calls to (sub-par) pymbolic CSE

---
 sumpy/codegen.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sumpy/codegen.py b/sumpy/codegen.py
index 7b5a9132..37ab7bdd 100644
--- a/sumpy/codegen.py
+++ b/sumpy/codegen.py
@@ -406,6 +406,12 @@ def to_loopy_insns(assignments, vector_names=set(), pymbolic_expr_maps=[],
     for name, expr in assignments:
         btog(expr)
 
+    #from pymbolic.mapper.cse_tagger import CSEWalkMapper, CSETagMapper
+    #cse_walk = CSEWalkMapper()
+    #for name, expr in assignments:
+    #    cse_walk(expr)
+    #cse_tag = CSETagMapper(cse_walk)
+
     # do the rest of the conversion
     bessel_sub = BesselSubstitutor(BesselGetter(btog.bessel_j_arg_to_top_order))
     vcr = VectorComponentRewriter(vector_names)
@@ -421,6 +427,7 @@ def to_loopy_insns(assignments, vector_names=set(), pymbolic_expr_maps=[],
         expr = pwr(expr)
         expr = fck(expr)
         expr = ssg(expr)
+        #expr = cse_tag(expr)
         for m in pymbolic_expr_maps:
             expr = m(expr)
         return expr
-- 
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