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-rw-r--r--miasm/expression/simplifications_common.py11
1 files changed, 11 insertions, 0 deletions
diff --git a/miasm/expression/simplifications_common.py b/miasm/expression/simplifications_common.py
index 85af9dc4..68d98c00 100644
--- a/miasm/expression/simplifications_common.py
+++ b/miasm/expression/simplifications_common.py
@@ -853,6 +853,17 @@ def simp_cc_conds(_, expr):
             ExprInt(1, expr.size)
         )
 
+    elif (expr.is_op("CC_S>=") and
+          len(expr.args) == 2 and
+          expr.args[0].is_op("FLAG_SIGN_SUB") and
+          expr.args[0].args[1].is_int(0) and
+          expr.args[1].is_int(0)):
+        expr = ExprOp(
+            TOK_INF_EQUAL_SIGNED,
+            expr.args[0].args[1],
+            expr.args[0].args[0],
+        )
+
     elif (expr.is_op("CC_S<") and
           test_cc_eq_args(
               expr,