X-Git-Url: https://git.stderr.nl/gitweb?a=blobdiff_plain;f=c%CE%BBash%2FCLasH%2FNormalize.hs;h=8cbebad6978b29b687fbc4e6f1f133e2ac145b42;hb=c4aa528c379ea8c2fa2fb0d5f8d8c70ba41fb699;hp=18010cf56e0cfeebfd0da111e4e53f66c400edcc;hpb=1d13e989f97de81b5a50f42fe690bb4e5a85e547;p=matthijs%2Fmaster-project%2Fc%CE%BBash.git diff --git "a/c\316\273ash/CLasH/Normalize.hs" "b/c\316\273ash/CLasH/Normalize.hs" index 18010cf..8cbebad 100644 --- "a/c\316\273ash/CLasH/Normalize.hs" +++ "b/c\316\273ash/CLasH/Normalize.hs" @@ -185,6 +185,17 @@ letflat expr = return expr -- Perform this transform everywhere letflattop = everywhere ("letflat", letflat) +-------------------------------- +-- empty let removal +-------------------------------- +-- Remove empty (recursive) lets +letremove, letremovetop :: Transform +letremove (Let (Rec []) res) = change $ res +-- Leave all other expressions unchanged +letremove expr = return expr +-- Perform this transform everywhere +letremovetop = everywhere ("letremove", letremove) + -------------------------------- -- Simple let binding removal -------------------------------- @@ -556,7 +567,7 @@ funextracttop = everywhere ("funextract", funextract) -- What transforms to run? -transforms = [argproptop, funextracttop, etatop, betatop, castproptop, letremovesimpletop, letderectop, letsimpltop, letflattop, scrutsimpltop, casesimpltop, caseremovetop, inlinenonreptop, appsimpltop, letmergetop, letremoveunusedtop, castsimpltop] +transforms = [argproptop, funextracttop, etatop, betatop, castproptop, letremovesimpletop, letderectop, letremovetop, letsimpltop, letflattop, scrutsimpltop, casesimpltop, caseremovetop, inlinenonreptop, appsimpltop, letmergetop, letremoveunusedtop, castsimpltop] -- | Returns the normalized version of the given function. getNormalized ::