Add a warning for tabs in source files

[ghc-hetmet.git] / compiler / cmm / CmmParse.y

diff --git a/compiler/cmm/CmmParse.y b/compiler/cmm/CmmParse.y
index 20edd51..8679ff2 100644 (file)
--- a/compiler/cmm/CmmParse.y
+++ b/compiler/cmm/CmmParse.y
@@ -46,8 +46,9 @@ import Panic
 import Constants
 import Outputable
 
-import Control.Monad   ( when )
+import Control.Monad
 import Data.Char       ( ord )
+import System.Exit
 
 #include "HsVersions.h"
 }
@@ -918,9 +919,12 @@ parseCmmFile dflags filename = do
                -- in there we don't want.
   case unP cmmParse init_state of
     PFailed span err -> do printError span err; return Nothing
-    POk _ code -> do
+    POk pst code -> do
        cmm <- initC dflags no_module (getCmm (unEC code initEnv [] >> return ()))
-       dumpIfSet_dyn dflags Opt_D_dump_cmm "Cmm" (pprCmms [cmm])
+       let ms = getMessages pst
+       printErrorsAndWarnings dflags ms
+        when (errorsFound dflags ms) $ exitWith (ExitFailure 1)
+        dumpIfSet_dyn dflags Opt_D_dump_cmm "Cmm" (pprCmms [cmm])
        return (Just cmm)
   where
        no_module = panic "parseCmmFile: no module"