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-rw-r--r--miasm2/expression/simplifications.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/miasm2/expression/simplifications.py b/miasm2/expression/simplifications.py
index 712488e3..d3628ae8 100644
--- a/miasm2/expression/simplifications.py
+++ b/miasm2/expression/simplifications.py
@@ -42,6 +42,8 @@ class ExpressionSimplifier(object):
             simplifications_common.simp_subwc_cf,
             simplifications_common.simp_subwc_of,
             simplifications_common.simp_sign_subwc_cf,
+            simplifications_common.simp_double_zeroext,
+            simplifications_common.simp_double_signext,
             simplifications_common.simp_zeroext_eq_cst,
 
         ],