delete dead code in fpbase.MultiShift.[lr]shift

diff --git a/src/ieee754/fpcommon/fpbase.py b/src/ieee754/fpcommon/fpbase.py
index 71b2d9ecc58c81684029ae1b9a2b97b5868f7eb6..5e086fe1b65344f22d7994a348388cb99341c00c 100644 (file)
--- a/src/ieee754/fpcommon/fpbase.py
+++ b/src/ieee754/fpcommon/fpbase.py
@@ -44,20 +44,10 @@ class MultiShift:
     def lshift(self, op, s):
         res = op << s
         return res[:len(op)]
-        res = op
-        for i in range(self.smax):
-            zeros = [0] * (1 << i)
-            res = Mux(s & (1 << i), Cat(zeros, res[0:-(1 << i)]), res)
-        return res
 
     def rshift(self, op, s):
         res = op >> s
         return res[:len(op)]
-        res = op
-        for i in range(self.smax):
-            zeros = [0] * (1 << i)
-            res = Mux(s & (1 << i), Cat(res[(1 << i):], zeros), res)
-        return res
 
 
 class FPNumBaseRecord: