diff options
Diffstat (limited to 'testsuite')
| -rw-r--r-- | testsuite/tests/perf/should_run/T19474.hs | 15 | ||||
| -rw-r--r-- | testsuite/tests/perf/should_run/all.T | 4 |
2 files changed, 19 insertions, 0 deletions
diff --git a/testsuite/tests/perf/should_run/T19474.hs b/testsuite/tests/perf/should_run/T19474.hs new file mode 100644 index 0000000000..8379a4debd --- /dev/null +++ b/testsuite/tests/perf/should_run/T19474.hs @@ -0,0 +1,15 @@ +module T19474 where + +import Control.Monad +import qualified Data.Vector.Storable.Mutable as M + +main = do + v <- M.new 1 + forM_ [0..10000] $ \some -> do + addSome v 0 some + M.unsafeRead v 0 >>= print + +addSome :: M.IOVector Int -> Int -> Int -> IO () +addSome m idx some = do + val <- M.unsafeRead m idx + M.unsafeWrite m idx $ val + some diff --git a/testsuite/tests/perf/should_run/all.T b/testsuite/tests/perf/should_run/all.T index d7257472e2..6e603b46f4 100644 --- a/testsuite/tests/perf/should_run/all.T +++ b/testsuite/tests/perf/should_run/all.T @@ -395,3 +395,7 @@ test('T19347', compile_and_run, ['-O']) +test ('T19474', + [ collect_stats('bytes allocated', 5), reqlib('vector') ], + compile_and_run, + ['-v0 -O']) |