X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fvectorise%2FVectUtils.hs;h=df8c23ff5e26651de62f8e8cbc8d221f21813440;hb=346516b3930d677616e5108499d3a82b51f58853;hp=27dd330036caafe6faff84e37ad6d616b137f562;hpb=fe5405d4b97a521e32899f6dc2153c556723ca62;p=ghc-hetmet.git

diff --git a/compiler/vectorise/VectUtils.hs b/compiler/vectorise/VectUtils.hs
index 27dd330..df8c23f 100644
--- a/compiler/vectorise/VectUtils.hs
+++ b/compiler/vectorise/VectUtils.hs
@@ -140,7 +140,7 @@ paDictOfTyApp (TyVarTy tv) ty_args
       paDFunApply dfun ty_args
 paDictOfTyApp (TyConApp tc _) ty_args
   = do
-      dfun <- maybeV (lookupTyConPA tc)
+      dfun <- traceMaybeV "paDictOfTyApp" (ppr tc) (lookupTyConPA tc)
       paDFunApply (Var dfun) ty_args
 paDictOfTyApp ty ty_args = pprPanic "paDictOfTyApp" (ppr ty)