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| author | Edward Z. Yang <ezyang@cs.stanford.edu> | 2015-01-27 16:20:54 -0800 |
|---|---|---|
| committer | Edward Z. Yang <ezyang@cs.stanford.edu> | 2015-01-28 13:54:58 -0800 |
| commit | 07ee96faac4996cde0ab82789eec0b70d1a35af0 (patch) | |
| tree | 1a36efc948d7634a95734d0c527286a5070f4c76 /compiler/iface/IfaceEnv.hs | |
| parent | 276da7929c187f007c198a38e88bdad91866e500 (diff) | |
| download | haskell-07ee96faac4996cde0ab82789eec0b70d1a35af0.tar.gz | |
Use strict atomicModifyIORef' (added in GHC 7.6).
Summary: Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu>
Test Plan: validate
Reviewers: austin, hvr
Subscribers: thomie
Differential Revision: https://phabricator.haskell.org/D635
Diffstat (limited to 'compiler/iface/IfaceEnv.hs')
| -rw-r--r-- | compiler/iface/IfaceEnv.hs | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/compiler/iface/IfaceEnv.hs b/compiler/iface/IfaceEnv.hs index efd4956b70..f647e35707 100644 --- a/compiler/iface/IfaceEnv.hs +++ b/compiler/iface/IfaceEnv.hs @@ -34,9 +34,8 @@ import SrcLoc import Util import Outputable -import Exception ( evaluate ) -import Data.IORef ( atomicModifyIORef, readIORef ) +import Data.IORef ( atomicModifyIORef' ) {- ********************************************************* @@ -233,9 +232,7 @@ newtype NameCacheUpdater = NCU { updateNameCache :: forall c. (NameCache -> (Nam mkNameCacheUpdater :: TcRnIf a b NameCacheUpdater mkNameCacheUpdater = do nc_var <- hsc_NC `fmap` getTopEnv - let update_nc f = do r <- atomicModifyIORef nc_var f - _ <- evaluate =<< readIORef nc_var - return r + let update_nc f = atomicModifyIORef' nc_var f return (NCU update_nc) initNameCache :: UniqSupply -> [Name] -> NameCache |