Add generated PArray instances to instance environments

[ghc-hetmet.git] / compiler / vectorise / VectMonad.hs

diff --git a/compiler/vectorise/VectMonad.hs b/compiler/vectorise/VectMonad.hs
index eed5a81..09e2d2f 100644 (file)
--- a/compiler/vectorise/VectMonad.hs
+++ b/compiler/vectorise/VectMonad.hs
@@ -9,6 +9,7 @@ module VectMonad (
   builtin,
 
   GlobalEnv(..),
+  setInstEnvs,
   readGEnv, setGEnv, updGEnv,
 
   LocalEnv(..),
@@ -157,6 +158,13 @@ initGlobalEnv info instEnvs famInstEnvs bi
     , global_bindings      = []
     }
 
+setInstEnvs :: InstEnv -> FamInstEnv -> GlobalEnv -> GlobalEnv
+setInstEnvs l_inst l_fam_inst genv
+  | (g_inst,     _) <- global_inst_env genv
+  , (g_fam_inst, _) <- global_fam_inst_env genv
+  = genv { global_inst_env     = (g_inst, l_inst)
+         , global_fam_inst_env = (g_fam_inst, l_fam_inst) }
+
 emptyLocalEnv = LocalEnv {
                    local_vars     = emptyVarEnv
                  , local_tyvars   = []