Desugar multiple polymorphic bindings more intelligently

[ghc-hetmet.git] / compiler / main / StaticFlags.hs

diff --git a/compiler/main/StaticFlags.hs b/compiler/main/StaticFlags.hs
index 6fa6032..6d826cb 100644 (file)
--- a/compiler/main/StaticFlags.hs
+++ b/compiler/main/StaticFlags.hs
@@ -39,6 +39,7 @@ module StaticFlags (
        opt_Parallel,
 
        -- optimisation opts
+       opt_DsMultiTyVar,
        opt_NoStateHack,
        opt_SpecInlineJoinPoints,
        opt_CprOff,
@@ -320,8 +321,13 @@ opt_Parallel :: Bool
 opt_Parallel                   = lookUp  (fsLit "-fparallel")
 
 -- optimisation opts
+opt_DsMultiTyVar :: Bool
+opt_DsMultiTyVar               = not (lookUp (fsLit "-fno-ds-multi-tyvar"))
+       -- On by default
+
 opt_SpecInlineJoinPoints :: Bool
 opt_SpecInlineJoinPoints       = lookUp  (fsLit "-fspec-inline-join-points")
+
 opt_NoStateHack :: Bool
 opt_NoStateHack                        = lookUp  (fsLit "-fno-state-hack")
 opt_CprOff :: Bool
@@ -410,6 +416,7 @@ isStaticFlag f =
        "dno-black-holing",
        "fno-method-sharing",
        "fno-state-hack",
+       "fno-ds-multi-tyvar",
        "fruntime-types",
        "fno-pre-inlining",
        "fexcess-precision",