X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Fcmm%2FPprC.hs;h=aa7d914253100e0654a3536107d1c94bb19c3809;hp=d363cef50b19b8b34cb296fd240be319aa79f8fe;hb=2c8aabcad1d2f2c469cb8a10afa7b66beeaedd45;hpb=40859045bf3e74efb5443b407bb01978e742e49d

diff --git a/compiler/cmm/PprC.hs b/compiler/cmm/PprC.hs
index d363cef..aa7d914 100644
--- a/compiler/cmm/PprC.hs
+++ b/compiler/cmm/PprC.hs
@@ -64,10 +64,6 @@ import Data.Word
 import Data.Array.ST
 import Control.Monad.ST
 
-#if x86_64_TARGET_ARCH
-import StaticFlags	( opt_Unregisterised )
-#endif
-
 #if defined(alpha_TARGET_ARCH) || defined(mips_TARGET_ARCH) || defined(mipsel_TARGET_ARCH) || defined(arm_TARGET_ARCH)
 #define BEWARE_LOAD_STORE_ALIGNMENT
 #endif
@@ -248,7 +244,7 @@ pprStmt stmt = case stmt of
                 | CmmNeverReturns <- ret ->
                     let myCall = pprCall (pprCLabel lbl) cconv results args safety
                     in (real_fun_proto lbl, myCall)
-                | not (isMathFun lbl || isCas lbl) ->
+                | not (isMathFun lbl) ->
                     let myCall = braces (
                                      pprCFunType (char '*' <> text "ghcFunPtr") cconv results args <> semi
                                   $$ text "ghcFunPtr" <+> equals <+> cast_fn <> semi
@@ -820,17 +816,6 @@ pprCall ppr_fn cconv results args _
 
   | otherwise
   =
-#if x86_64_TARGET_ARCH
-	-- HACK around gcc optimisations.
-	-- x86_64 needs a __DISCARD__() here, to create a barrier between
-	-- putting the arguments into temporaries and passing the arguments
-	-- to the callee, because the argument expressions may refer to
-	-- machine registers that are also used for passing arguments in the
-	-- C calling convention.
-    (if (not opt_Unregisterised) 
-	then ptext (sLit "__DISCARD__();") 
-	else empty) $$
-#endif
     ppr_assign results (ppr_fn <> parens (commafy (map pprArg args))) <> semi
   where 
      ppr_assign []           rhs = rhs