X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Fcmm%2FCmmOpt.hs;h=7c88add20412e3213bd736df359b74a7302905a7;hp=320f0a5ccfa88d3defc95c338046a0aac60ebee3;hb=30665bdd7b657dd9ca77c20b2e1f224cc3f4d4e3;hpb=a6d4d67ef5fae791619d91baee80f79764eb3257

diff --git a/compiler/cmm/CmmOpt.hs b/compiler/cmm/CmmOpt.hs
index 320f0a5..7c88add 100644
--- a/compiler/cmm/CmmOpt.hs
+++ b/compiler/cmm/CmmOpt.hs
@@ -341,7 +341,8 @@ cmmMachOpFold cmp [CmmMachOp conv [x], CmmLit (CmmInt i _)]
   = cmmMachOpFold narrow_cmp [x, CmmLit (CmmInt narrow_i rep)]
  where
     maybe_conversion (MO_U_Conv from _) = Just (from, narrowU)
-    maybe_conversion (MO_S_Conv from _) = Just (from, narrowS)
+    maybe_conversion (MO_S_Conv from _)
+        | not (isFloatingRep from) = Just (from, narrowS)
     maybe_conversion _ = Nothing
     
     maybe_comparison (MO_U_Gt _) rep = Just (MO_U_Gt rep)