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-rw-r--r--compiler/GHC/Core/Opt/SetLevels.hs8
1 files changed, 3 insertions, 5 deletions
diff --git a/compiler/GHC/Core/Opt/SetLevels.hs b/compiler/GHC/Core/Opt/SetLevels.hs
index ed7f95b0b7..9d96dd3586 100644
--- a/compiler/GHC/Core/Opt/SetLevels.hs
+++ b/compiler/GHC/Core/Opt/SetLevels.hs
@@ -75,8 +75,6 @@ module GHC.Core.Opt.SetLevels (
incMinorLvl, ltMajLvl, ltLvl, isTopLvl
) where
-#include "HsVersions.h"
-
import GHC.Prelude
import GHC.Driver.Ppr
@@ -1691,9 +1689,9 @@ abstractVars dest_lvl (LE { le_subst = subst, le_lvl_env = lvl_env }) in_fvs
-- We are going to lambda-abstract, so nuke any IdInfo,
-- and add the tyvars of the Id (if necessary)
- zap v | isId v = WARN( isStableUnfolding (idUnfolding v) ||
- not (isEmptyRuleInfo (idSpecialisation v)),
- text "absVarsOf: discarding info on" <+> ppr v )
+ zap v | isId v = warnPprTrace (isStableUnfolding (idUnfolding v) ||
+ not (isEmptyRuleInfo (idSpecialisation v)))
+ (text "absVarsOf: discarding info on" <+> ppr v) $
setIdInfo v vanillaIdInfo
| otherwise = v