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author | Matthew Craven <5086-clyring@users.noreply.gitlab.haskell.org> | 2023-03-14 22:13:38 -0400 |
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committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2023-04-04 01:04:10 -0400 |
commit | f7da530c80c0117d5684bb52481e4a40d7e724cc (patch) | |
tree | f7842af425dd2513d9d0be63a2df045f416e5258 /testsuite/tests/codeGen/should_fail/CheckBoundsReadWord64Array.hs | |
parent | 9095e297fbb46781fd182210609ce2a3f6c59b7a (diff) | |
download | haskell-f7da530c80c0117d5684bb52481e4a40d7e724cc.tar.gz |
StgToCmm: Upgrade -fcheck-prim-bounds behavior
Fixes #21054. Additionally, we can now check for range overlap
when generating Cmm for primops that use memcpy internally.
Diffstat (limited to 'testsuite/tests/codeGen/should_fail/CheckBoundsReadWord64Array.hs')
-rw-r--r-- | testsuite/tests/codeGen/should_fail/CheckBoundsReadWord64Array.hs | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/testsuite/tests/codeGen/should_fail/CheckBoundsReadWord64Array.hs b/testsuite/tests/codeGen/should_fail/CheckBoundsReadWord64Array.hs new file mode 100644 index 0000000000..f5337d26c3 --- /dev/null +++ b/testsuite/tests/codeGen/should_fail/CheckBoundsReadWord64Array.hs @@ -0,0 +1,16 @@ +{-# LANGUAGE UnboxedTuples #-} +{-# LANGUAGE MagicHash #-} + +module Main where + +import GHC.Exts +import GHC.IO + +main :: IO () +main = do + IO $ \s0 -> + case newByteArray# 23# s0 of + (# s1, marr #) -> + case readWord64Array# marr (-1#) s1 of + (# s2, _n #) -> (# s2, () #) + |