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authorJan Stolarek <jan.stolarek@p.lodz.pl>2014-10-31 10:31:40 +0100
committerJan Stolarek <jan.stolarek@p.lodz.pl>2014-10-31 10:32:18 +0100
commit919e9303c1ce0fffc5d09b6875f17cf9b1f5167d (patch)
treecf4f6bdc4a1a592aed70cf19ed895bb1a3d14539
parentcbb20ab2c3222da75625bcf41f8ff67a7e9ba5f7 (diff)
downloadhaskell-919e9303c1ce0fffc5d09b6875f17cf9b1f5167d.tar.gz
Fix comment typos
-rw-r--r--compiler/simplCore/CallArity.hs4
-rw-r--r--compiler/simplCore/SetLevels.lhs2
2 files changed, 3 insertions, 3 deletions
diff --git a/compiler/simplCore/CallArity.hs b/compiler/simplCore/CallArity.hs
index bead230bcd..5ee5fe296a 100644
--- a/compiler/simplCore/CallArity.hs
+++ b/compiler/simplCore/CallArity.hs
@@ -33,7 +33,7 @@ Note [Call Arity: The goal]
~~~~~~~~~~~~~~~~~~~~~~~~~~~
The goal of this analysis is to find out if we can eta-expand a local function,
-based on how it is being called. The motivating example is code this this,
+based on how it is being called. The motivating example is this code,
which comes up when we implement foldl using foldr, and do list fusion:
let go = \x -> let d = case ... of
@@ -46,7 +46,7 @@ If we do not eta-expand `go` to have arity 2, we are going to allocate a lot of
partial function applications, which would be bad.
The function `go` has a type of arity two, but only one lambda is manifest.
-Further more, an analysis that only looks at the RHS of go cannot be sufficient
+Furthermore, an analysis that only looks at the RHS of go cannot be sufficient
to eta-expand go: If `go` is ever called with one argument (and the result used
multiple times), we would be doing the work in `...` multiple times.
diff --git a/compiler/simplCore/SetLevels.lhs b/compiler/simplCore/SetLevels.lhs
index 5f63096a29..e5cd42ec30 100644
--- a/compiler/simplCore/SetLevels.lhs
+++ b/compiler/simplCore/SetLevels.lhs
@@ -331,7 +331,7 @@ lvlExpr env expr@(_, AnnApp _ _) = do
-- We don't split adjacent lambdas. That is, given
-- \x y -> (x+1,y)
-- we don't float to give
--- \x -> let v = x+y in \y -> (v,y)
+-- \x -> let v = x+1 in \y -> (v,y)
-- Why not? Because partial applications are fairly rare, and splitting
-- lambdas makes them more expensive.