X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2FsimplCore%2FSimplCore.lhs;fp=compiler%2FsimplCore%2FSimplCore.lhs;h=0f881cf07bbc5ff890992a4fbd01e73dcf640800;hp=5bdf6ee97957860d4556671dc75fc402b48594ac;hb=931d450e1f3c601e35f6e2460f721152bd458976;hpb=e45d0387b4fdfe83ce9228631938882ef96f7288

diff --git a/compiler/simplCore/SimplCore.lhs b/compiler/simplCore/SimplCore.lhs
index 5bdf6ee..0f881cf 100644
--- a/compiler/simplCore/SimplCore.lhs
+++ b/compiler/simplCore/SimplCore.lhs
@@ -668,11 +668,11 @@ x_local to transfer to x_exported.  Hence the copyIdInfo call.
 RULES: we want to *add* any RULES for x_local to x_exported.
 
 
-Note [Messing up the exported Id's IdInfo]
+Note [Messing up the exported Id's RULES]
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-We must be careful about discarding the IdInfo on the old Id
-
-The example that went bad on me at one stage was this one:
+We must be careful about discarding (obviously) or even merging the
+RULES on the exported Id. The example that went bad on me at one stage
+was this one:
 	
     iterate :: (a -> a) -> a -> [a]
 	[Exported]