From 526957ce38330c453737758650f5ac37c890ddd2 Mon Sep 17 00:00:00 2001
From: sof <unknown>
Date: Thu, 13 Dec 2001 23:32:21 +0000
Subject: [PATCH] [project @ 2001-12-13 23:32:21 by sof] shift wibble

---
 ghc/compiler/nativeGen/MachMisc.lhs |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/ghc/compiler/nativeGen/MachMisc.lhs b/ghc/compiler/nativeGen/MachMisc.lhs
index 4229595..6b2c181 100644
--- a/ghc/compiler/nativeGen/MachMisc.lhs
+++ b/ghc/compiler/nativeGen/MachMisc.lhs
@@ -177,7 +177,13 @@ exactLog2 x
        }
   where
     pow2 x# | x# ==# 1# = 0#
-            | otherwise = 1# +# pow2 (w2i (i2w x# `shiftRL#` 1#))
+            | otherwise = 1# +# pow2 (w2i (i2w x# `shiftr` 1#))
+
+#if __GLASGOW_HASKELL__ >= 503
+    shiftr x y = uncheckedShiftRL# x y
+#else
+    shiftr x y = shiftRL# x y
+#endif
 \end{code}
 
 % - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-- 
1.7.10.4