From: simonpj@microsoft.com <unknown>
Date: Fri, 24 Apr 2009 07:47:33 +0000 (+0000)
Subject: Tiny optimisation to mkInlineMe
X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=commitdiff_plain;h=980a3e89be93e2d40cc26ca626c8cbf293abb78c;hp=b5a73581d0c03b9d44a77706b5973d74074aa6c1

Tiny optimisation to mkInlineMe
---

diff --git a/compiler/coreSyn/CoreUtils.lhs b/compiler/coreSyn/CoreUtils.lhs
index 0708d7a..d92b6d1 100644
--- a/compiler/coreSyn/CoreUtils.lhs
+++ b/compiler/coreSyn/CoreUtils.lhs
@@ -200,8 +200,9 @@ But it hardly seems worth it, so I don't bother.
 -- | Wraps the given expression in an inlining hint unless the expression
 -- is trivial in some sense, so that doing so would usually hurt us
 mkInlineMe :: CoreExpr -> CoreExpr
-mkInlineMe (Var v) = Var v
-mkInlineMe e	   = Note InlineMe e
+mkInlineMe e@(Var _)           = e
+mkInlineMe e@(Note InlineMe _) = e
+mkInlineMe e	               = Note InlineMe e
 \end{code}
 
 \begin{code}