diff options
Diffstat (limited to 'testsuite/tests/cmm/should_run/ByteSwitch.hs')
| -rw-r--r-- | testsuite/tests/cmm/should_run/ByteSwitch.hs | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/testsuite/tests/cmm/should_run/ByteSwitch.hs b/testsuite/tests/cmm/should_run/ByteSwitch.hs new file mode 100644 index 0000000000..40b1db7a2b --- /dev/null +++ b/testsuite/tests/cmm/should_run/ByteSwitch.hs @@ -0,0 +1,11 @@ +{-# LANGUAGE MagicHash #-} +{-# LANGUAGE UnliftedFFITypes #-} +{-# LANGUAGE ForeignFunctionInterface #-} +{-# LANGUAGE GHCForeignImportPrim #-} + +import GHC.Int +import GHC.Exts + +foreign import prim "byte_switch" byteSwitch:: Int8# -> Int8# + +main = traverse (\(I8# x#) -> print $ I8# (byteSwitch x#)) [-4..4] |