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| author | Michal Terepeta <michal.terepeta@gmail.com> | 2015-08-03 08:41:13 +0200 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2015-08-03 08:41:32 +0200 |
| commit | 92f5385d8b2be50848a2496199a481f299f4b53a (patch) | |
| tree | e335893d9ff65b3df9f34dd5191b7a785eeeabfb /testsuite/tests/primops | |
| parent | 37227d3400549c2a6844dfb8c34c0738edc69ecc (diff) | |
| download | haskell-92f5385d8b2be50848a2496199a481f299f4b53a.tar.gz | |
Support MO_U_QuotRem2 in LLVM backend
This adds support for MO_U_QuotRem2 in LLVM backend. Similarly to
MO_U_Mul2 we use the standard LLVM instructions (in this case 'udiv'
and 'urem') but do the computation on double the word width (e.g., for
64-bit we will do them on 128 registers).
Test Plan: validate
Reviewers: rwbarton, austin, bgamari
Reviewed By: bgamari
Subscribers: thomie
Differential Revision: https://phabricator.haskell.org/D1100
GHC Trac Issues: #9430
Diffstat (limited to 'testsuite/tests/primops')
| -rw-r--r-- | testsuite/tests/primops/should_run/T9430.hs | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/testsuite/tests/primops/should_run/T9430.hs b/testsuite/tests/primops/should_run/T9430.hs index aec2d264a1..eedc0a754b 100644 --- a/testsuite/tests/primops/should_run/T9430.hs +++ b/testsuite/tests/primops/should_run/T9430.hs @@ -34,6 +34,23 @@ checkW (expX, expY) op (W# a) (W# b) = "Expected " ++ show expX ++ " and " ++ show expY ++ " but got " ++ show (W# x) ++ " and " ++ show (W# y) +checkW2 + :: (Word, Word) -- ^ expected results + -> (Word# -> Word# -> Word# -> (# Word#, Word# #)) + -- ^ primop + -> Word -- ^ first argument + -> Word -- ^ second argument + -> Word -- ^ third argument + -> Maybe String -- ^ maybe error +checkW2 (expX, expY) op (W# a) (W# b) (W# c) = + case op a b c of + (# x, y #) + | W# x == expX && W# y == expY -> Nothing + | otherwise -> + Just $ + "Expected " ++ show expX ++ " and " ++ show expY + ++ " but got " ++ show (W# x) ++ " and " ++ show (W# y) + check :: String -> Maybe String -> IO () check s (Just err) = error $ "Error for " ++ s ++ ": " ++ err check _ Nothing = return () @@ -91,3 +108,21 @@ main = do checkW (2, maxBound - 2) timesWord2# maxBound 3 check "timesWord2# 3 maxBound" $ checkW (2, maxBound - 2) timesWord2# 3 maxBound + + check "quotRemWord2# 0 0 1" $ checkW2 (0, 0) quotRemWord2# 0 0 1 + check "quotRemWord2# 0 4 2" $ checkW2 (2, 0) quotRemWord2# 0 4 2 + check "quotRemWord2# 0 7 3" $ checkW2 (2, 1) quotRemWord2# 0 7 3 + check "quotRemWord2# 1 0 (2 ^ 63)" $ + checkW2 (2, 0) quotRemWord2# 1 0 (2 ^ 63) + check "quotRemWord2# 1 1 (2 ^ 63)" $ + checkW2 (2, 1) quotRemWord2# 1 1 (2 ^ 63) + check "quotRemWord2# 1 0 maxBound" $ + checkW2 (1, 1) quotRemWord2# 1 0 maxBound + check "quotRemWord2# 2 0 maxBound" $ + checkW2 (2, 2) quotRemWord2# 2 0 maxBound + check "quotRemWord2# 1 maxBound maxBound" $ + checkW2 (2, 1) quotRemWord2# 1 maxBound maxBound + check "quotRemWord2# (2 ^ 63) 0 maxBound" $ + checkW2 (2 ^ 63, 2 ^ 63) quotRemWord2# (2 ^ 63) 0 maxBound + check "quotRemWord2# (2 ^ 63) maxBound maxBound" $ + checkW2 (2 ^ 63 + 1, 2 ^ 63) quotRemWord2# (2 ^ 63) maxBound maxBound |