[commit: ghc] wip/T13861: WIP: an experiment (69221a6)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : wip/T13861
Link       : http://ghc.haskell.org/trac/ghc/changeset/69221a67b0a792d38152a6606c300132494f0004/ghc

>---------------------------------------------------------------

commit 69221a67b0a792d38152a6606c300132494f0004
Author: Gabor Greif <ggreif at gmail.com>
Date:   Wed Jan 3 09:15:43 2018 +0100

    WIP: an experiment


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69221a67b0a792d38152a6606c300132494f0004
 compiler/coreSyn/MkCore.hs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler/coreSyn/MkCore.hs b/compiler/coreSyn/MkCore.hs
index 72b6abf..588ce5d 100644
--- a/compiler/coreSyn/MkCore.hs
+++ b/compiler/coreSyn/MkCore.hs
@@ -200,7 +200,7 @@ mkWildCase :: CoreExpr -> Type -> Type -> [CoreAlt] -> CoreExpr
 -- Make a case expression whose case binder is unused
 -- The alts should not have any occurrences of WildId
 mkWildCase scrut scrut_ty res_ty alts
-  = Case scrut (mkWildValBinder scrut_ty) res_ty alts
+  = Case scrut (mkWildValBinder scrut_ty `setIdUnfolding` evaldUnfolding) res_ty alts
 
 mkIfThenElse :: CoreExpr -> CoreExpr -> CoreExpr -> CoreExpr
 mkIfThenElse guard then_expr else_expr