Increase exprIsDupable threshold a bit

Now that exprIsDupable is less aggressive, test MethSharing wasn't
doing enough inlining.  Increasing the threshold fixes the problem
but the real fix is in Trac #4960.

diff --git a/compiler/coreSyn/CoreUtils.lhs b/compiler/coreSyn/CoreUtils.lhs
index c901fc2..0eab695 100644 (file)
--- a/compiler/coreSyn/CoreUtils.lhs
+++ b/compiler/coreSyn/CoreUtils.lhs
@@ -481,7 +481,10 @@ exprIsDupable e
     decrement n = Just (n-1)
 
 dupAppSize :: Int
-dupAppSize = 6  -- Size of term we are prepared to duplicate
+dupAppSize = 8  -- Size of term we are prepared to duplicate
+                -- This is *just* big enough to make test MethSharing
+                -- inline enough join points.  Really it should be
+                -- smaller, and could be if we fixed Trac #4960.
 \end{code}
 
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