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-rw-r--r--miasm2/analysis/data_flow.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/miasm2/analysis/data_flow.py b/miasm2/analysis/data_flow.py
index 62176bb1..bba598e0 100644
--- a/miasm2/analysis/data_flow.py
+++ b/miasm2/analysis/data_flow.py
@@ -229,6 +229,7 @@ def dead_simp_useful_assignblks(irarch, defuse, reaching_defs):
             for lval, rval in assignblk.iteritems():
                 if (lval.is_mem() or
                     irarch.IRDst == lval or
+                    lval.is_id("exception_flags") or
                     rval.is_function_call()):
                     useful.add(AssignblkNode(block_lbl, index, lval))