[Git][ghc/ghc][wip/marge_bot_batch_merge_job] 4 commits: primops: Introduce unsafeThawByteArray#
Marge Bot (@marge-bot)
gitlab at gitlab.haskell.org
Sat Jul 8 17:21:47 UTC 2023
Marge Bot pushed to branch wip/marge_bot_batch_merge_job at Glasgow Haskell Compiler / GHC
Commits:
8a02ce83 by Ben Gamari at 2023-07-08T13:21:22-04:00
primops: Introduce unsafeThawByteArray#
This addresses an odd asymmetry in the ByteArray# primops, which
previously provided unsafeFreezeByteArray# but no corresponding
thaw operation.
Closes #22710
- - - - -
feb2c1d6 by Bodigrim at 2023-07-08T13:21:31-04:00
Add since annotations for Data.Foldable1
- - - - -
436b87c9 by Sylvain Henry at 2023-07-08T13:21:35-04:00
JS: support -this-unit-id for programs in the linker (#23613)
- - - - -
b90955e6 by Bodigrim at 2023-07-08T13:21:37-04:00
Bump text submodule
- - - - -
16 changed files:
- compiler/GHC/Builtin/primops.txt.pp
- compiler/GHC/StgToCmm/Prim.hs
- compiler/GHC/StgToJS/Linker/Linker.hs
- compiler/GHC/StgToJS/Prim.hs
- libraries/base/Data/Foldable1.hs
- libraries/ghc-prim/changelog.md
- libraries/text
- + testsuite/tests/driver/T23613.hs
- testsuite/tests/driver/all.T
- testsuite/tests/driver/multipleHomeUnits/all.T
- testsuite/tests/driver/multipleHomeUnits/hi-dir/all.T
- testsuite/tests/driver/multipleHomeUnits/o-files/all.T
- testsuite/tests/driver/multipleHomeUnits/target-file-path/all.T
- + testsuite/tests/primops/should_run/T22710.hs
- + testsuite/tests/primops/should_run/T22710.stdout
- testsuite/tests/primops/should_run/all.T
Changes:
=====================================
compiler/GHC/Builtin/primops.txt.pp
=====================================
@@ -1922,6 +1922,14 @@ primop UnsafeFreezeByteArrayOp "unsafeFreezeByteArray#" GenPrimOp
with
has_side_effects = True
+primop UnsafeThawByteArrayOp "unsafeThawByteArray#" GenPrimOp
+ ByteArray# -> State# s -> (# State# s, MutableByteArray# s #)
+ {Make an immutable byte array mutable, without copying.
+
+ @since 0.12.0.0}
+ with
+ has_side_effects = True
+
primop SizeofByteArrayOp "sizeofByteArray#" GenPrimOp
ByteArray# -> Int#
{Return the size of the array in bytes.}
=====================================
compiler/GHC/StgToCmm/Prim.hs
=====================================
@@ -371,6 +371,10 @@ emitPrimOp cfg primop =
UnsafeFreezeByteArrayOp -> \[arg] -> opIntoRegs $ \[res] ->
emitAssign (CmmLocal res) arg
+-- #define unsafeThawByteArrayzh(r,a) r=(a)
+ UnsafeThawByteArrayOp -> \[arg] -> opIntoRegs $ \[res] ->
+ emitAssign (CmmLocal res) arg
+
-- Reading/writing pointer arrays
ReadArrayOp -> \[obj, ix] -> opIntoRegs $ \[res] ->
=====================================
compiler/GHC/StgToJS/Linker/Linker.hs
=====================================
@@ -327,7 +327,7 @@ computeLinkDependencies cfg unit_env link_spec finder_opts finder_cache = do
let (rts_wired_units, rts_wired_functions) = rtsDeps units
-- all the units we want to link together, without their dependencies
- let root_units = filter (/= mainUnitId)
+ let root_units = filter (/= ue_currentUnit unit_env)
$ filter (/= interactiveUnitId)
$ nub
$ rts_wired_units ++ reverse obj_units ++ reverse units
=====================================
compiler/GHC/StgToJS/Prim.hs
=====================================
@@ -652,6 +652,7 @@ genPrim prof bound ty op = case op of
ShrinkMutableByteArrayOp_Char -> \[] [a,n] -> PrimInline $ appS "h$shrinkMutableByteArray" [a,n]
ResizeMutableByteArrayOp_Char -> \[r] [a,n] -> PrimInline $ r |= app "h$resizeMutableByteArray" [a,n]
UnsafeFreezeByteArrayOp -> \[a] [b] -> PrimInline $ a |= b
+ UnsafeThawByteArrayOp -> \[a] [b] -> PrimInline $ a |= b
SizeofByteArrayOp -> \[r] [a] -> PrimInline $ r |= a .^ "len"
SizeofMutableByteArrayOp -> \[r] [a] -> PrimInline $ r |= a .^ "len"
GetSizeofMutableByteArrayOp -> \[r] [a] -> PrimInline $ r |= a .^ "len"
=====================================
libraries/base/Data/Foldable1.hs
=====================================
@@ -2,6 +2,9 @@
-- Copyright: Edward Kmett, Oleg Grenrus
-- License: BSD-3-Clause
--
+-- A class of non-empty data structures that can be folded to a summary value.
+--
+-- @since 4.18.0.0
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
@@ -12,7 +15,6 @@
{-# LANGUAGE Trustworthy #-}
{-# LANGUAGE TypeOperators #-}
--- | A class of non-empty data structures that can be folded to a summary value.
module Data.Foldable1 (
Foldable1(..),
foldr1, foldr1',
@@ -65,6 +67,8 @@ import Data.Coerce (Coercible, coerce)
-------------------------------------------------------------------------------
-- | Non-empty data structures that can be folded.
+--
+-- @since 4.18.0.0
class Foldable t => Foldable1 t where
{-# MINIMAL foldMap1 | foldrMap1 #-}
@@ -86,6 +90,8 @@ class Foldable t => Foldable1 t where
-- them via the semigroup's @('<>')@ operator. This fold is
-- right-associative and lazy in the accumulator. When you need a strict
-- left-associative fold, use 'foldMap1'' instead, with 'id' as the map.
+ --
+ -- @since 4.18.0.0
fold1 :: Semigroup m => t m -> m
fold1 = foldMap1 id
@@ -97,6 +103,7 @@ class Foldable t => Foldable1 t where
-- >>> foldMap1 (:[]) (1 :| [2, 3, 4])
-- [1,2,3,4]
--
+ -- @since 4.18.0.0
foldMap1 :: Semigroup m => (a -> m) -> t a -> m
foldMap1 f = foldrMap1 f (\a m -> f a <> m)
@@ -107,6 +114,7 @@ class Foldable t => Foldable1 t where
-- >>> foldMap1' Sum (1 :| [2, 3, 4])
-- Sum {getSum = 10}
--
+ -- @since 4.18.0.0
foldMap1' :: Semigroup m => (a -> m) -> t a -> m
foldMap1' f = foldlMap1' f (\m a -> m <> f a)
@@ -115,6 +123,7 @@ class Foldable t => Foldable1 t where
-- >>> toNonEmpty (Identity 2)
-- 2 :| []
--
+ -- @since 4.18.0.0
toNonEmpty :: t a -> NonEmpty a
toNonEmpty = runNonEmptyDList . foldMap1 singleton
@@ -123,6 +132,7 @@ class Foldable t => Foldable1 t where
-- >>> maximum (32 :| [64, 8, 128, 16])
-- 128
--
+ -- @since 4.18.0.0
maximum :: Ord a => t a -> a
maximum = getMax #. foldMap1' Max
@@ -131,6 +141,7 @@ class Foldable t => Foldable1 t where
-- >>> minimum (32 :| [64, 8, 128, 16])
-- 8
--
+ -- @since 4.18.0.0
minimum :: Ord a => t a -> a
minimum = getMin #. foldMap1' Min
@@ -139,6 +150,7 @@ class Foldable t => Foldable1 t where
-- >>> head (1 :| [2, 3, 4])
-- 1
--
+ -- @since 4.18.0.0
head :: t a -> a
head = getFirst #. foldMap1 First
@@ -147,6 +159,7 @@ class Foldable t => Foldable1 t where
-- >>> last (1 :| [2, 3, 4])
-- 4
--
+ -- @since 4.18.0.0
last :: t a -> a
last = getLast #. foldMap1 Last
@@ -168,6 +181,7 @@ class Foldable t => Foldable1 t where
--
-- @foldrMap1 f g = foldrMap1 f g . 'toNonEmpty'@
--
+ -- @since 4.18.0.0
foldrMap1 :: (a -> b) -> (a -> b -> b) -> t a -> b
foldrMap1 f g xs =
appFromMaybe (foldMap1 (FromMaybe #. h) xs) Nothing
@@ -188,6 +202,7 @@ class Foldable t => Foldable1 t where
--
-- @foldlMap1' f z = foldlMap1' f z . 'toNonEmpty'@
--
+ -- @since 4.18.0.0
foldlMap1' :: (a -> b) -> (b -> a -> b) -> t a -> b
foldlMap1' f g xs =
foldrMap1 f' g' xs SNothing
@@ -227,6 +242,7 @@ class Foldable t => Foldable1 t where
--
-- @foldlMap1 f g = foldlMap1 f g . 'toNonEmpty'@
--
+ -- @since 4.18.0.0
foldlMap1 :: (a -> b) -> (b -> a -> b) -> t a -> b
foldlMap1 f g xs =
appFromMaybe (getDual (foldMap1 ((Dual . FromMaybe) #. h) xs)) Nothing
@@ -249,6 +265,7 @@ class Foldable t => Foldable1 t where
-- poor fit for the task at hand. If the order in which the elements are
-- combined is not important, use 'foldlMap1'' instead.
--
+ -- @since 4.18.0.0
foldrMap1' :: (a -> b) -> (a -> b -> b) -> t a -> b
foldrMap1' f g xs =
foldlMap1 f' g' xs SNothing
@@ -264,21 +281,29 @@ class Foldable t => Foldable1 t where
-------------------------------------------------------------------------------
-- | A variant of 'foldrMap1' where the rightmost element maps to itself.
+--
+-- @since 4.18.0.0
foldr1 :: Foldable1 t => (a -> a -> a) -> t a -> a
foldr1 = foldrMap1 id
{-# INLINE foldr1 #-}
-- | A variant of 'foldrMap1'' where the rightmost element maps to itself.
+--
+-- @since 4.18.0.0
foldr1' :: Foldable1 t => (a -> a -> a) -> t a -> a
foldr1' = foldrMap1' id
{-# INLINE foldr1' #-}
-- | A variant of 'foldlMap1' where the leftmost element maps to itself.
+--
+-- @since 4.18.0.0
foldl1 :: Foldable1 t => (a -> a -> a) -> t a -> a
foldl1 = foldlMap1 id
{-# INLINE foldl1 #-}
-- | A variant of 'foldlMap1'' where the leftmost element maps to itself.
+--
+-- @since 4.18.0.0
foldl1' :: Foldable1 t => (a -> a -> a) -> t a -> a
foldl1' = foldlMap1' id
{-# INLINE foldl1' #-}
@@ -294,6 +319,7 @@ foldl1' = foldlMap1' id
-- >>> intercalate1 mempty $ "I" :| ["Am", "Fine", "You?"]
-- "IAmFineYou?"
--
+-- @since 4.18.0.0
intercalate1 :: (Foldable1 t, Semigroup m) => m -> t m -> m
intercalate1 = flip intercalateMap1 id
@@ -302,10 +328,14 @@ intercalateMap1 j f = flip joinee j . foldMap1 (JoinWith . const . f)
-- | Monadic fold over the elements of a non-empty structure,
-- associating to the right, i.e. from right to left.
+--
+-- @since 4.18.0.0
foldrM1 :: (Foldable1 t, Monad m) => (a -> a -> m a) -> t a -> m a
foldrM1 = foldrMapM1 return
-- | Map variant of 'foldrM1'.
+--
+-- @since 4.18.0.0
foldrMapM1 :: (Foldable1 t, Monad m) => (a -> m b) -> (a -> b -> m b) -> t a -> m b
foldrMapM1 g f = go . toNonEmpty
where
@@ -316,16 +346,22 @@ foldrMapM1 g f = go . toNonEmpty
-- | Monadic fold over the elements of a non-empty structure,
-- associating to the left, i.e. from left to right.
+--
+-- @since 4.18.0.0
foldlM1 :: (Foldable1 t, Monad m) => (a -> a -> m a) -> t a -> m a
foldlM1 = foldlMapM1 return
-- | Map variant of 'foldlM1'.
+--
+-- @since 4.18.0.0
foldlMapM1 :: (Foldable1 t, Monad m) => (a -> m b) -> (b -> a -> m b) -> t a -> m b
foldlMapM1 g f t = g x >>= \y -> foldlM f y xs
where x:|xs = toNonEmpty t
-- | The largest element of a non-empty structure with respect to the
-- given comparison function.
+--
+-- @since 4.18.0.0
maximumBy :: Foldable1 t => (a -> a -> Ordering) -> t a -> a
maximumBy cmp = foldl1' max'
where max' x y = case cmp x y of
@@ -334,6 +370,8 @@ maximumBy cmp = foldl1' max'
-- | The least element of a non-empty structure with respect to the
-- given comparison function.
+--
+-- @since 4.18.0.0
minimumBy :: Foldable1 t => (a -> a -> Ordering) -> t a -> a
minimumBy cmp = foldl1' min'
where min' x y = case cmp x y of
@@ -379,6 +417,7 @@ instance Semigroup a => Semigroup (JoinWith a) where
-- Instances for misc base types
-------------------------------------------------------------------------------
+-- | @since 4.18.0.0
instance Foldable1 NonEmpty where
foldMap1 f (x :| xs) = go (f x) xs where
go y [] = y
@@ -398,9 +437,11 @@ instance Foldable1 NonEmpty where
head = NE.head
last = NE.last
+-- | @since 4.18.0.0
instance Foldable1 Down where
foldMap1 = coerce
+-- | @since 4.18.0.0
instance Foldable1 Complex where
foldMap1 f (x :+ y) = f x <> f y
@@ -412,6 +453,7 @@ instance Foldable1 Complex where
-- 3+ tuples are not Foldable/Traversable
+-- | @since 4.18.0.0
instance Foldable1 Solo where
foldMap1 f (MkSolo y) = f y
toNonEmpty (MkSolo x) = x :| []
@@ -420,6 +462,7 @@ instance Foldable1 Solo where
head (MkSolo x) = x
last (MkSolo x) = x
+-- | @since 4.18.0.0
instance Foldable1 ((,) a) where
foldMap1 f (_, y) = f y
toNonEmpty (_, x) = x :| []
@@ -432,52 +475,68 @@ instance Foldable1 ((,) a) where
-- Monoid / Semigroup instances
-------------------------------------------------------------------------------
+-- | @since 4.18.0.0
instance Foldable1 Dual where
foldMap1 = coerce
+-- | @since 4.18.0.0
instance Foldable1 Sum where
foldMap1 = coerce
+-- | @since 4.18.0.0
instance Foldable1 Product where
foldMap1 = coerce
+-- | @since 4.18.0.0
instance Foldable1 Min where
foldMap1 = coerce
+-- | @since 4.18.0.0
instance Foldable1 Max where
foldMap1 = coerce
+-- | @since 4.18.0.0
instance Foldable1 First where
foldMap1 = coerce
+-- | @since 4.18.0.0
instance Foldable1 Last where
foldMap1 = coerce
+-- | @since 4.18.0.0
deriving instance (Foldable1 f) => Foldable1 (Mon.Alt f)
+-- | @since 4.18.0.0
deriving instance (Foldable1 f) => Foldable1 (Mon.Ap f)
-------------------------------------------------------------------------------
-- GHC.Generics instances
-------------------------------------------------------------------------------
+-- | @since 4.18.0.0
instance Foldable1 V1 where
foldMap1 _ x = x `seq` error "foldMap1 @V1"
+-- | @since 4.18.0.0
instance Foldable1 Par1 where
foldMap1 = coerce
+-- | @since 4.18.0.0
deriving instance Foldable1 f => Foldable1 (Rec1 f)
+-- | @since 4.18.0.0
deriving instance Foldable1 f => Foldable1 (M1 i c f)
+-- | @since 4.18.0.0
instance (Foldable1 f, Foldable1 g) => Foldable1 (f :+: g) where
foldMap1 f (L1 x) = foldMap1 f x
foldMap1 f (R1 y) = foldMap1 f y
+-- | @since 4.18.0.0
instance (Foldable1 f, Foldable1 g) => Foldable1 (f :*: g) where
foldMap1 f (x :*: y) = foldMap1 f x <> foldMap1 f y
+-- | @since 4.18.0.0
instance (Foldable1 f, Foldable1 g) => Foldable1 (f :.: g) where
foldMap1 f = foldMap1 (foldMap1 f) . unComp1
@@ -485,6 +544,7 @@ instance (Foldable1 f, Foldable1 g) => Foldable1 (f :.: g) where
-- Extra instances
-------------------------------------------------------------------------------
+-- | @since 4.18.0.0
instance Foldable1 Identity where
foldMap1 = coerce
@@ -509,6 +569,7 @@ instance (Foldable1 f, Foldable1 g) => Foldable1 (Functor.Product f g) where
head (Functor.Pair x _) = head x
last (Functor.Pair _ y) = last y
+-- | @since 4.18.0.0
instance (Foldable1 f, Foldable1 g) => Foldable1 (Functor.Sum f g) where
foldMap1 f (Functor.InL x) = foldMap1 f x
foldMap1 f (Functor.InR y) = foldMap1 f y
@@ -529,6 +590,7 @@ instance (Foldable1 f, Foldable1 g) => Foldable1 (Functor.Sum f g) where
maximum (Functor.InL x) = maximum x
maximum (Functor.InR y) = maximum y
+-- | @since 4.18.0.0
instance (Foldable1 f, Foldable1 g) => Foldable1 (Compose f g) where
foldMap1 f = foldMap1 (foldMap1 f) . getCompose
=====================================
libraries/ghc-prim/changelog.md
=====================================
@@ -1,3 +1,10 @@
+## 0.12.0
+
+- Shipped with GHC 9.10.1
+
+- The `unsafeThawByteArray#` primop was added, serving as a inverse to the existing
+ `unsafeFreezeByteArray#` primop (see #22710).
+
## 0.11.0
- Shipped with GHC 9.8.1
=====================================
libraries/text
=====================================
@@ -1 +1 @@
-Subproject commit e815d4d9bc362f4a3a36a850931fd3504eda967e
+Subproject commit a961985e63105e3c50035e7e8dab1d218332dd0f
=====================================
testsuite/tests/driver/T23613.hs
=====================================
@@ -0,0 +1,4 @@
+module Main where
+
+main :: IO ()
+main = return ()
=====================================
testsuite/tests/driver/all.T
=====================================
@@ -320,6 +320,7 @@ test('T21869', [js_broken(22261), when(unregisterised(), skip)], makefile_test,
test('T22044', normal, makefile_test, [])
test('T22048', [only_ways(['normal']), grep_errmsg("_rule")], compile, ["-O -fomit-interface-pragmas -ddump-simpl"])
test('T21722', normal, compile_fail, ['-fno-show-error-context'])
-test('T22669', js_skip, makefile_test, [])
-test('T23339', js_skip, makefile_test, [])
-test('T23339B', [extra_files(['T23339.hs']), js_skip], makefile_test, [])
+test('T22669', req_interp, makefile_test, [])
+test('T23339', req_c, makefile_test, [])
+test('T23339B', [extra_files(['T23339.hs']), req_c], makefile_test, [])
+test('T23613', normal, compile_and_run, ['-this-unit-id=foo'])
=====================================
testsuite/tests/driver/multipleHomeUnits/all.T
=====================================
@@ -1,7 +1,7 @@
test('multipleHomeUnits_single1', [extra_files([ 'a/', 'unitA'])], multiunit_compile, [['unitA'], '-fhide-source-paths'])
test('multipleHomeUnits_single2', [extra_files([ 'b/', 'unitB'])], multiunit_compile, [['unitB'], '-fhide-source-paths'])
-test('multipleHomeUnits_single3', [js_broken(22261),extra_files([ 'c/', 'unitC'])], multiunit_compile, [['unitC'], '-fhide-source-paths'])
-test('multipleHomeUnits_single4', [js_broken(22261),extra_files([ 'd/', 'unitD'])], multiunit_compile, [['unitD'], '-fhide-source-paths'])
+test('multipleHomeUnits_single3', [extra_files([ 'c/', 'unitC'])], multiunit_compile, [['unitC'], '-fhide-source-paths'])
+test('multipleHomeUnits_single4', [extra_files([ 'd/', 'unitD'])], multiunit_compile, [['unitD'], '-fhide-source-paths'])
test('multipleHomeUnits_single5', [req_th,extra_files([ 'th/', 'unitTH'])], multiunit_compile, [['unitTH'], '-fhide-source-paths'])
test('multipleHomeUnits_cpp', [extra_files([ 'cpp-includes/', 'unitCPPIncludes'])], multiunit_compile, [['unitCPPIncludes'], '-fhide-source-paths'])
test('multipleHomeUnits_cfile', [extra_files([ 'c-file/', 'unitCFile'])], multiunit_compile, [['unitCFile'], '-fhide-source-paths'])
@@ -24,14 +24,12 @@ test('multipleHomeUnits002',
[ extra_files(
[ 'c/', 'd/'
, 'unitC', 'unitD'])
- , js_broken(22261)
], makefile_test, [])
test('multipleHomeUnits003',
[ extra_files(
[ 'a/', 'b/', 'c/', 'd/'
, 'unitA', 'unitB', 'unitC', 'unitD'])
- , js_broken(22261)
], makefile_test, [])
test('multipleHomeUnits004',
=====================================
testsuite/tests/driver/multipleHomeUnits/hi-dir/all.T
=====================================
@@ -1,7 +1,6 @@
# This test checks that getRootSummary doesn't cross package boundaries.
test('multipleHomeUnits_hidir'
, [extra_files([ 'p1/', 'unitP1'])
- , js_broken(22261)
]
, makefile_test
, ['mhu-hidir'])
=====================================
testsuite/tests/driver/multipleHomeUnits/o-files/all.T
=====================================
@@ -1,7 +1,6 @@
# This test checks that getRootSummary doesn't cross package boundaries.
test('multipleHomeUnits_o-files'
, [extra_files([ 'p1/', 'unitP1'])
- , js_broken(22261)
, pre_cmd('$MAKE -s --no-print-directory setup')]
, multiunit_compile
, [['unitP1'], '-fhide-source-paths'])
=====================================
testsuite/tests/driver/multipleHomeUnits/target-file-path/all.T
=====================================
@@ -1,7 +1,6 @@
# This test checks that getRootSummary doesn't cross package boundaries.
test('multipleHomeUnits_target-file-path'
, [extra_files([ 'p1/', 'unitP1'])
- , js_broken(22261)
]
, multiunit_compile
, [['unitP1'], '-fhide-source-paths'])
=====================================
testsuite/tests/primops/should_run/T22710.hs
=====================================
@@ -0,0 +1,55 @@
+-- | Test 'unsafeThawByteArray#'.
+
+{-# LANGUAGE MagicHash, UnboxedTuples #-}
+
+import GHC.Exts (newByteArray#, indexWord8Array#, writeWord8Array#,
+ unsafeFreezeByteArray#, unsafeThawByteArray#,
+ ByteArray#, MutableByteArray#, Int(I#))
+import GHC.Word
+import GHC.ST
+import Prelude hiding (toList)
+
+main :: IO ()
+main = do
+ res <- return $ runST $ do
+ let n = 32 :: Int
+ marr <- newByteArray n
+ mapM_ (\i -> writeWord8Array marr i (fromIntegral i)) [0..n-1]
+ arr <- unsafeFreezeByteArray marr
+ marr' <- unsafeThawByteArray arr
+ arr' <- unsafeFreezeByteArray marr'
+ return $ toList arr' 5
+
+ print res
+
+data ByteArray = ByteArray { unBA :: ByteArray# }
+data MByteArray s = MByteArray { unMBA :: MutableByteArray# s }
+
+newByteArray :: Int -> ST s (MByteArray s)
+newByteArray (I# n#) = ST $ \s# -> case newByteArray# n# s# of
+ (# s2#, marr# #) -> (# s2#, MByteArray marr# #)
+
+indexWord8Array :: ByteArray -> Int -> Word8
+indexWord8Array arr (I# i#) = case indexWord8Array# (unBA arr) i# of
+ a -> W8# a
+
+writeWord8Array :: MByteArray s -> Int -> Word8 -> ST s ()
+writeWord8Array marr (I# i#) (W8# a) = ST $ \ s# ->
+ case writeWord8Array# (unMBA marr) i# a s# of
+ s2# -> (# s2#, () #)
+
+unsafeFreezeByteArray :: MByteArray s -> ST s ByteArray
+unsafeFreezeByteArray marr = ST $ \ s# ->
+ case unsafeFreezeByteArray# (unMBA marr) s# of
+ (# s2#, arr# #) -> (# s2#, ByteArray arr# #)
+
+unsafeThawByteArray :: ByteArray -> ST s (MByteArray s)
+unsafeThawByteArray arr = ST $ \ s# ->
+ case unsafeThawByteArray# (unBA arr) s# of
+ (# s2#, marr# #) -> (# s2#, MByteArray marr# #)
+
+toList :: ByteArray -> Int -> [Word8]
+toList arr n = go 0
+ where
+ go i | i >= n = []
+ | otherwise = indexWord8Array arr i : go (i+1)
=====================================
testsuite/tests/primops/should_run/T22710.stdout
=====================================
@@ -0,0 +1 @@
+[0,1,2,3,4]
=====================================
testsuite/tests/primops/should_run/all.T
=====================================
@@ -71,3 +71,4 @@ test('FMA_ConstantFold'
test('T21624', normal, compile_and_run, [''])
test('T23071', ignore_stdout, compile_and_run, [''])
+test('T22710', normal, compile_and_run, [''])
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/53044bd6690fd72c7fd7a7fadef3cdffc7e772dd...b90955e6e20fb20cb65fdf3eb1f3ad80130dfaa9
--
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/53044bd6690fd72c7fd7a7fadef3cdffc7e772dd...b90955e6e20fb20cb65fdf3eb1f3ad80130dfaa9
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