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|
{-# OPTIONS_GHC -fno-warn-orphans #-}
module Futhark.IR.Prop.ReshapeTests
( tests,
)
where
import Data.List qualified as L
import Futhark.IR.Prop.Constants
import Futhark.IR.Prop.Reshape
import Futhark.IR.Syntax
import Futhark.IR.SyntaxTests ()
import Test.Tasty
import Test.Tasty.HUnit
intShape :: [Int] -> Shape
intShape = Shape . map (intConst Int32 . toInteger)
reshapeOuterTests :: [TestTree]
reshapeOuterTests =
[ testCase (unwords ["reshapeOuter", show sc, show n, show shape, "==", show sc_res]) $
reshapeOuter (intShape sc) n (intShape shape) @?= intShape sc_res
| (sc, n, shape, sc_res) <-
[ ([1], 1, [4, 3], [1, 3]),
([1], 2, [4, 3], [1]),
([2, 2], 1, [4, 3], [2, 2, 3]),
([2, 2], 2, [4, 3], [2, 2])
]
]
reshapeInnerTests :: [TestTree]
reshapeInnerTests =
[ testCase (unwords ["reshapeInner", show sc, show n, show shape, "==", show sc_res]) $
reshapeInner (intShape sc) n (intShape shape) @?= intShape sc_res
| (sc, n, shape, sc_res) <-
[ ([1], 1, [4, 3], [4, 1]),
([1], 0, [4, 3], [1]),
([2, 2], 1, [4, 3], [4, 2, 2]),
([2, 2], 0, [4, 3], [2, 2])
]
]
dimFlatten :: Int -> Int -> d -> DimSplice d
dimFlatten i k w = DimSplice i k (Shape [w])
dimUnflatten :: Int -> [d] -> DimSplice d
dimUnflatten i ws = DimSplice i 1 (Shape ws)
dimCoerce :: Int -> d -> DimSplice d
dimCoerce i w = DimSplice i 1 (Shape [w])
dimSplice :: Int -> Int -> [d] -> DimSplice d
dimSplice i n s = DimSplice i n $ Shape s
flipReshapeRearrangeTests :: [TestTree]
flipReshapeRearrangeTests =
[ testCase
( unwords
[ "flipReshapeRearrange",
show v0_shape,
show v1_shape,
show perm
]
)
$ flipReshapeRearrange v0_shape v1_shape perm @?= res
| (v0_shape :: [String], v1_shape, perm, res) <-
[ ( ["A", "B", "C"],
["A", "BC"],
[1, 0],
Just [1, 2, 0]
),
( ["A", "B", "C", "D"],
["A", "BCD"],
[1, 0],
Just [1, 2, 3, 0]
),
( ["A"],
["B", "C"],
[1, 0],
Nothing
),
( ["A", "B", "C"],
["AB", "C"],
[1, 0],
Just [2, 0, 1]
),
( ["A", "B", "C", "D"],
["ABC", "D"],
[1, 0],
Just [3, 0, 1, 2]
)
]
]
flipRearrangeReshapeTests :: [TestTree]
flipRearrangeReshapeTests =
[ testCase
( unwords
[ "flipRearrangeReshape",
show perm,
prettyStringOneLine newshape
]
)
$ flipRearrangeReshape perm newshape @?= res
| (perm, newshape :: NewShape String, res) <-
[ ( [1, 0],
NewShape
[dimUnflatten 1 ["B", "C"]]
(Shape ["A", "B", "C"]),
Just
( NewShape
[dimUnflatten 0 ["B", "C"]]
(Shape ["B", "C", "A"]),
[2, 0, 1]
)
),
( [1, 0],
NewShape
[dimFlatten 0 2 "AB"]
(Shape ["AB"]),
Nothing
)
]
]
simplifyTests :: TestTree
simplifyTests =
testGroup
"simplifyNewShape"
[ testCase "Inverse flatten and unflatten - simple case" $
lhs
["A", "B"]
[dimFlatten 0 2 "AB", dimUnflatten 0 ["A", "B"]]
@?= Just [],
testCase "Non-inverse flatten and unflatten - simple case" $
lhs
["A", "B"]
[dimFlatten 0 2 "AB", dimUnflatten 0 ["C", "D"]]
@?= Just [dimSplice 0 2 ["C", "D"]],
testCase "Inverse flatten and unflatten - separated by coercion" $
lhs
["A", "B"]
[ dimFlatten 0 2 "AB",
dimCoerce 0 "CD",
dimUnflatten 0 ["C", "D"]
]
@?= Just [dimSplice 0 2 ["C", "D"]],
testCase "Two unflattens - simple case" $
lhs
["ABC"]
[dimUnflatten 0 ["A", "BC"], dimUnflatten 1 ["B", "C"]]
@?= Just [dimUnflatten 0 ["A", "B", "C"]],
testCase "Two unflattens with unchanged prefix" $
lhs
["A", "B", "C", "D", "E"]
[ DimSplice 3 2 $ Shape ["DE"],
DimSplice 2 2 $ Shape ["CDE"]
]
@?= Just [dimFlatten 2 3 "CDE"],
testCase "Identity coerce" $
lhs
["A", "B", "C"]
[dimCoerce 1 "B", dimCoerce 2 "C"]
@?= Just [],
testCase "Identity coerce (multiple dimensions)" $
lhs
["A", "B", "C"]
[DimSplice 1 2 (Shape ["B", "C"])]
@?= Just [],
testCase "Identity coerce (with non-identity stuff afterwards)" $
lhs
["B", "CD"]
[dimCoerce 0 "B", dimUnflatten 1 ["C", "D"]]
@?= Just [dimUnflatten 1 ["C", "D"]],
testCase "Get rid of a coerce before an unflatten" $
lhs
["CD"]
[dimCoerce 0 "AB", dimUnflatten 0 ["A", "B"]]
@?= Just [dimUnflatten 0 ["A", "B"]],
testCase "Get rid of a coerce after a flatten" $
lhs
["A", "B", "C"]
[dimFlatten 0 2 "ABC", dimCoerce 0 "K"]
@?= Just [dimFlatten 0 2 "K"],
testCase "Flatten and unflatten (invariant suffix)" $
lhs
["A", "B", "C"]
[dimFlatten 0 3 "ABC", dimUnflatten 0 ["D", "E", "C"]]
@?= Just [dimSplice 0 2 ["D", "E"]],
testCase "Flatten and unflatten (invariant prefix)" $
lhs
["A", "B", "C"]
[dimFlatten 0 3 "ABC", dimUnflatten 0 ["A", "D", "E"]]
@?= Just [dimSplice 1 2 ["D", "E"]],
testCase "Invariant part of splice" $
lhs
["A", "B", "C", "D"]
[DimSplice 1 3 $ Shape ["BC", "D"]]
@?= Just [DimSplice 1 2 $ Shape ["BC"]],
testCase "Necessary coercion" $
lhs
["A", "B"]
[dimCoerce 0 "C", dimCoerce 1 "D"]
@?= Nothing,
testCase "Another necessary coercion" $
lhs
["A", "B", "C"]
[dimCoerce 0 "A'", dimCoerce 1 "A'", dimCoerce 2 "A'"]
@?= Nothing,
testCase "Long with redundancies" $
lhs
["A", "B", "C", "D"]
[ DimSplice 1 3 $ Shape ["BC", "D"],
dimCoerce 1 "BC",
dimCoerce 2 "D",
dimFlatten 1 2 "BCD",
dimFlatten 0 2 "ABCD"
]
@?= Just [dimFlatten 0 4 "ABCD"]
]
where
lhs orig_shape ss =
let res_shape :: ShapeBase String =
L.foldl' applySplice (Shape orig_shape) ss
in dimSplices
<$> simplifyNewShape (Shape orig_shape) (NewShape ss res_shape)
tests :: TestTree
tests =
testGroup "ReshapeTests" . mconcat $
[ reshapeOuterTests,
reshapeInnerTests,
flipReshapeRearrangeTests,
flipRearrangeReshapeTests,
[simplifyTests]
]
|
