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Glasgow Haskell Compiler
test-primops
Commits
d761e23f
Commit
d761e23f
authored
1 year ago
by
Ben Gamari
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Factor shrinkExpr into separate top-level
parent
60763320
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1 merge request
!10
Enable testing of Word64# on 32-bit platforms
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1 changed file
src/Expr.hs
+44
-40
44 additions, 40 deletions
src/Expr.hs
with
44 additions
and
40 deletions
src/Expr.hs
+
44
−
40
View file @
d761e23f
...
...
@@ -142,46 +142,7 @@ instance KnownWidth width => Show (Expr width) where
instance
KnownWidth
width
=>
Arbitrary
(
Expr
width
)
where
arbitrary
=
genExpr
shrink
e
=
case
e
of
ERel
op
a
b
->
shrinkBinOp
(
ERel
op
)
a
b
EAdd
a
b
->
shrinkBinOp
EAdd
a
b
++
[
a
|
interpret
b
==
0
]
++
[
b
|
interpret
a
==
0
]
ESub
a
b
->
shrinkBinOp
ESub
a
b
++
[
a
|
interpret
b
==
0
]
++
[
ENegate
b
|
interpret
a
==
0
]
EMul
a
b
->
shrinkBinOp
EMul
a
b
++
[
a
|
interpret
b
==
1
]
++
[
b
|
interpret
a
==
1
]
EQuot
s
a
b
->
shrinkDivOp
(
EQuot
s
)
a
b
++
[
a
|
interpret
b
==
1
]
++
[
0
|
interpret
a
==
0
]
ERem
s
a
b
->
shrinkDivOp
(
ERem
s
)
a
b
++
[
a
|
interpret
b
==
1
]
++
[
0
|
interpret
a
==
0
]
EAnd
a
b
->
shrinkBinOp
EAnd
a
b
++
[
a
|
interpret
b
==
ones
]
++
[
b
|
interpret
a
==
ones
]
EOr
a
b
->
shrinkBinOp
EOr
a
b
++
[
a
|
interpret
b
==
0
]
++
[
b
|
interpret
a
==
0
]
EXOr
a
b
->
shrinkBinOp
EXOr
a
b
++
[
a
|
interpret
b
==
0
]
++
[
b
|
interpret
a
==
0
]
ENot
a
->
shrinkUnOp
ENot
a
++
[
a
]
EShl
a
b
->
shrinkBinOp
EShl
a
b
++
[
a
|
interpret
b
==
0
]
EShrl
a
b
->
shrinkBinOp
EShrl
a
b
++
[
a
|
interpret
b
==
0
]
EShra
a
b
->
shrinkBinOp
EShra
a
b
++
[
a
|
interpret
b
==
0
]
ENegate
a
->
shrinkUnOp
ENegate
a
++
[
a
]
ENarrow
a
->
shrinkUnOp
ENarrow
a
++
[
ENarrow
b
|
ENarrow
b
<-
pure
a
,
Wider
<-
pure
$
b
`
compareWidths
`
e
]
++
[
b
|
EZeroExt
b
<-
pure
a
,
SameWidth
<-
pure
$
e
`
compareWidths
`
b
]
ESignExt
a
->
shrinkUnOp
ESignExt
a
++
[
ESignExt
b
|
ESignExt
b
<-
pure
a
,
Wider
<-
pure
$
e
`
compareWidths
`
b
]
++
[
EZeroExt
a
]
EZeroExt
a
->
shrinkUnOp
EZeroExt
a
++
[
EZeroExt
b
|
EZeroExt
b
<-
pure
a
,
Wider
<-
pure
$
e
`
compareWidths
`
b
]
ELoad
a
->
shrinkUnOp
ELoad
a
ELit
a
->
map
ELit
(
shrink
a
)
where
shrinkUnOp
op
a
=
[
ELit
$
interpret
(
op
a
)
]
++
[
op
a'
|
a'
<-
shrink
a
]
shrinkBinOp
op
a
b
=
[
ELit
$
interpret
(
op
a
b
)
]
++
[
op
a'
b'
|
(
a'
,
b'
)
<-
shrink
(
a
,
b
)
]
shrinkDivOp
op
a
b
=
[
ELit
$
interpret
(
op
a
b
)
]
++
[
op
a'
b'
|
(
a'
,
b'
)
<-
shrink
(
a
,
b
)
,
interpret
b'
/=
0
]
shrink
e
=
shrinkExpr
e
genExpr
::
forall
width
.
(
KnownWidth
width
)
=>
Gen
(
Expr
width
)
...
...
@@ -290,6 +251,49 @@ genExpr' _width = sized gen
remOp
=
ERem
<$>
arbitrary
<*>
subexpr2
<*>
nonzero
subexpr2
nonzero
=
flip
suchThat
$
\
x
->
interpret
x
/=
0
shrinkExpr
::
forall
width
.
(
KnownWidth
width
)
=>
Expr
width
->
[
Expr
width
]
shrinkExpr
e
=
case
e
of
ERel
op
a
b
->
shrinkBinOp
(
ERel
op
)
a
b
EAdd
a
b
->
shrinkBinOp
EAdd
a
b
++
[
a
|
interpret
b
==
0
]
++
[
b
|
interpret
a
==
0
]
ESub
a
b
->
shrinkBinOp
ESub
a
b
++
[
a
|
interpret
b
==
0
]
++
[
ENegate
b
|
interpret
a
==
0
]
EMul
a
b
->
shrinkBinOp
EMul
a
b
++
[
a
|
interpret
b
==
1
]
++
[
b
|
interpret
a
==
1
]
EQuot
s
a
b
->
shrinkDivOp
(
EQuot
s
)
a
b
++
[
a
|
interpret
b
==
1
]
++
[
0
|
interpret
a
==
0
]
ERem
s
a
b
->
shrinkDivOp
(
ERem
s
)
a
b
++
[
a
|
interpret
b
==
1
]
++
[
0
|
interpret
a
==
0
]
EAnd
a
b
->
shrinkBinOp
EAnd
a
b
++
[
a
|
interpret
b
==
ones
]
++
[
b
|
interpret
a
==
ones
]
EOr
a
b
->
shrinkBinOp
EOr
a
b
++
[
a
|
interpret
b
==
0
]
++
[
b
|
interpret
a
==
0
]
EXOr
a
b
->
shrinkBinOp
EXOr
a
b
++
[
a
|
interpret
b
==
0
]
++
[
b
|
interpret
a
==
0
]
ENot
a
->
shrinkUnOp
ENot
a
++
[
a
]
EShl
a
b
->
shrinkBinOp
EShl
a
b
++
[
a
|
interpret
b
==
0
]
EShrl
a
b
->
shrinkBinOp
EShrl
a
b
++
[
a
|
interpret
b
==
0
]
EShra
a
b
->
shrinkBinOp
EShra
a
b
++
[
a
|
interpret
b
==
0
]
ENegate
a
->
shrinkUnOp
ENegate
a
++
[
a
]
ENarrow
a
->
shrinkUnOp
ENarrow
a
++
[
ENarrow
b
|
ENarrow
b
<-
pure
a
,
Wider
<-
pure
$
b
`
compareWidths
`
e
]
++
[
b
|
EZeroExt
b
<-
pure
a
,
SameWidth
<-
pure
$
e
`
compareWidths
`
b
]
ESignExt
a
->
shrinkUnOp
ESignExt
a
++
[
ESignExt
b
|
ESignExt
b
<-
pure
a
,
Wider
<-
pure
$
e
`
compareWidths
`
b
]
++
[
EZeroExt
a
]
EZeroExt
a
->
shrinkUnOp
EZeroExt
a
++
[
EZeroExt
b
|
EZeroExt
b
<-
pure
a
,
Wider
<-
pure
$
e
`
compareWidths
`
b
]
ELoad
a
->
shrinkUnOp
ELoad
a
ELit
a
->
map
ELit
(
shrink
a
)
where
shrinkUnOp
op
a
=
[
ELit
$
interpret
(
op
a
)
]
++
[
op
a'
|
a'
<-
shrink
a
]
shrinkBinOp
op
a
b
=
[
ELit
$
interpret
(
op
a
b
)
]
++
[
op
a'
b'
|
(
a'
,
b'
)
<-
shrink
(
a
,
b
)
]
shrinkDivOp
op
a
b
=
[
ELit
$
interpret
(
op
a
b
)
]
++
[
op
a'
b'
|
(
a'
,
b'
)
<-
shrink
(
a
,
b
)
,
interpret
b'
/=
0
]
-- * SomeExpr
data
SomeExpr
where
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