symbolic.py: cse tmp*

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/symbolic.py b/symbolic.py
index 436e6ce02ff2b68d38fbf64c1168c0f600e4d6c2..c034b3746f681f95918c697d050874f17ebf9c1b 100755 (executable)
--- a/symbolic.py
+++ b/symbolic.py
@@ -166,7 +166,8 @@ for sm_sh in ((), (sh*sh*la,)):
       dbg('diff(result_fordiff,%s)' % v)
       d = diff(result_fordiff,eval(v))
       print(ccode(d, assign_to='FOO'))
-      (defs, v) = cse(d)
+      (defs, v) = cse(d, symbols=map((lambda i: symbols('tmp%d' % i)),
+                                     itertools.count()))
       for vn, val in defs:
         print(ccode(val, assign_to=vn))
       print(ccode(v[0], assign_to='BAR'))