power_insn: support operands check

diff --git a/src/openpower/decoder/power_insn.py b/src/openpower/decoder/power_insn.py
index 2cc942dd46e2bcc5fe07cb4786075d8b8f24c0d0..da843aa21481df3a615bf9253145ac2922b9ba3b 100644 (file)
--- a/src/openpower/decoder/power_insn.py
+++ b/src/openpower/decoder/power_insn.py
@@ -491,6 +491,9 @@ class Operands:
     def __iter__(self):
         yield from self.__operands
 
+    def __contains__(self, key):
+        return self.__getitem__(key) is not None
+
     def __getitem__(self, key):
         for operand in self.__operands:
             if operand.name == key: