From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Mon, 10 May 2021 17:00:47 +0000 (+0100)
Subject: test_maxint, add zero onto 0xffffffffffffff
X-Git-Tag: 0.0.3~60
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c20374ef3fc39674718eea1daa6fdc6cb346d984;p=openpower-isa.git

test_maxint, add zero onto 0xffffffffffffff
---

diff --git a/src/openpower/decoder/selectable_int.py b/src/openpower/decoder/selectable_int.py
index 2afe50e6..1481f289 100644
--- a/src/openpower/decoder/selectable_int.py
+++ b/src/openpower/decoder/selectable_int.py
@@ -555,6 +555,12 @@ class SelectableIntTestCase(unittest.TestCase):
         self.assertTrue(a != b)
         self.assertFalse(a == b)
 
+    def test_maxint(self):
+        a = SelectableInt(0xffffffffffffffff, bits=64)
+        b = SelectableInt(0, bits=64)
+        result = a + b
+        self.assertTrue(result.value == 0xffffffffffffffff)
+
 
 if __name__ == "__main__":
     unittest.main()