Add suite/regress/invalid_read_in_print_operand
diff --git a/.gitignore b/.gitignore
index ff23bd4..76afff3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -63,6 +63,10 @@
 tests/test_customized_mnem
 
 
+# regress binaries
+suite/regress/invalid_read_in_print_operand
+
+
 # vim tmp file
 *.swp
 *~