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Created by Ian Lynagh <igloo@earth.li>@trac-igloo

tc078(hpc,optasm,profasm) are failing with core lint errors

tc078(hpc,optasm,profasm) are failing with core lint errors.

Here's the code:

-- !!! instance decls with no binds
--
module ShouldFail where

data Bar a = MkBar Int a

instance Eq a => Eq (Bar a)
instance Ord a => Ord (Bar a)

And the optasm failure:

=====> tc078(optasm) 75 of 326 [0, 0, 0]
cd . && '/home/ian/ghc/git/ghc/inplace/bin/ghc-stage2' -fforce-recomp -dcore-lint -dcmm-lint -dno-debug-output -no-user-package-conf -rtsopts  -fno-ghci-history -c tc078.hs -O -fasm  -fno-warn-incomplete-patterns >tc078.comp.stderr 2>&1
Compile failed (status 256) errors were:
*** Core Lint errors : in result of Common sub-expression ***
<no location info>: Warning:
    [RHS of $cmax_ah8 :: forall a_ag5.
                         GHC.Classes.Ord a_ag5 =>
                         ShouldFail.Bar a_ag5
                         -> ShouldFail.Bar a_ag5 -> ShouldFail.Bar a_ag5]
    The type of this binder doesn't match the type of its RHS: $cmax_ah8
    Binder's type: forall a_ag5.
                   GHC.Classes.Ord a_ag5 =>
                   ShouldFail.Bar a_ag5
                   -> ShouldFail.Bar a_ag5 -> ShouldFail.Bar a_ag5
    Rhs type: forall a_ag5.
              GHC.Classes.Ord a_ag5 =>
              ShouldFail.Bar a_ag5 -> ShouldFail.Bar a_ag5 -> GHC.Types.Bool
*** Offending Program ***
Rec {
$c==_agv [InlPrag=INLINE (sat-args=2), Occ=LoopBreaker]
  :: forall a_ag6.
     GHC.Classes.Eq a_ag6 =>
     ShouldFail.Bar a_ag6 -> ShouldFail.Bar a_ag6 -> GHC.Types.Bool
[LclId,
 Arity=3,
 Str=DmdType AAAb,
 Unf=Unf{Src=InlineStable, TopLvl=True, Arity=3, Value=True,
         ConLike=True, WorkFree=True, Expandable=True,
         Guidance=ALWAYS_IF(unsat_ok=False,boring_ok=True)
         Tmpl= \ (@ a_ag6)
                 ($dEq_agt [Occ=Once] :: GHC.Classes.Eq a_ag6)
                 (x_ahu [Occ=Once] :: ShouldFail.Bar a_ag6)
                 (y_ahv [Occ=Once] :: ShouldFail.Bar a_ag6) ->
                 $c==_agv @ a_ag6 $dEq_agt x_ahu y_ahv}]
$c==_agv =
  \ (@ a_ag6)
    ($dEq_agt :: GHC.Classes.Eq a_ag6)
    (eta_B2 :: ShouldFail.Bar a_ag6)
    (eta_B1 :: ShouldFail.Bar a_ag6) ->
    $c==_agv @ a_ag6 $dEq_agt eta_B2 eta_B1
end Rec }

$c/=_agz [InlPrag=INLINE (sat-args=2)]
  :: forall a_ag6.
     GHC.Classes.Eq a_ag6 =>
     ShouldFail.Bar a_ag6 -> ShouldFail.Bar a_ag6 -> GHC.Types.Bool
[LclId,
 Arity=3,
 Str=DmdType AAAb,
 Unf=Unf{Src=InlineStable, TopLvl=True, Arity=3, Value=True,
         ConLike=True, WorkFree=True, Expandable=True,
         Guidance=ALWAYS_IF(unsat_ok=False,boring_ok=True)
         Tmpl= \ (@ a_ag6)
                 ($dEq_agt [Occ=Once] :: GHC.Classes.Eq a_ag6)
                 (x_ahk [Occ=Once] :: ShouldFail.Bar a_ag6)
                 (y_ahl [Occ=Once] :: ShouldFail.Bar a_ag6) ->
                 $c==_agv @ a_ag6 $dEq_agt x_ahk y_ahl}]
$c/=_agz = $c==_agv

ShouldFail.$fEqBar [InlPrag=[ALWAYS] CONLIKE]
  :: forall a_ag6.
     GHC.Classes.Eq a_ag6 =>
     GHC.Classes.Eq (ShouldFail.Bar a_ag6)
[LclIdX[DFunId],
 Arity=1,
 Str=DmdType Lm,
 Unf=DFun(arity=2) GHC.Classes.D:Eq [$c==_agv, $c/=_agz]]
ShouldFail.$fEqBar =
  \ (@ a_ag6) ($dEq_agt [Dmd=Just L] :: GHC.Classes.Eq a_ag6) ->
    GHC.Classes.D:Eq
      @ (ShouldFail.Bar a_ag6)
      ($c==_agv @ a_ag6 $dEq_agt)
      ($c/=_agz @ a_ag6 $dEq_agt)

$c$p1Ord_agG
  :: forall a_ag5.
     GHC.Classes.Ord a_ag5 =>
     GHC.Classes.Eq (ShouldFail.Bar a_ag5)
[LclId,
 Arity=1,
 Str=DmdType Lm,
 Unf=Unf{Src=InlineStable, TopLvl=True, Arity=1, Value=True,
         ConLike=True, WorkFree=True, Expandable=True,
         Guidance=ALWAYS_IF(unsat_ok=True,boring_ok=False)
         Tmpl= \ (@ a_ag5)
                 ($dOrd_agD [Occ=Once] :: GHC.Classes.Ord a_ag5) ->
                 ShouldFail.$fEqBar @ a_ag5 (GHC.Classes.$p1Ord @ a_ag5 $dOrd_agD)}]
$c$p1Ord_agG =
  \ (@ a_ag5) ($dOrd_agD :: GHC.Classes.Ord a_ag5) ->
    ShouldFail.$fEqBar @ a_ag5 (GHC.Classes.$p1Ord @ a_ag5 $dOrd_agD)

eta_skd :: forall a_ag5. ShouldFail.Bar a_ag5
[LclId]
eta_skd =
  \ (@ a_ag5) ->
    Control.Exception.Base.absentError
      @ (ShouldFail.Bar a_ag5)
      "w_sk3{v} [lid] main:ShouldFail.Bar{tc r9Z} a{tv ag5} [tv]"

eta_skc :: forall a_ag5. ShouldFail.Bar a_ag5
[LclId]
eta_skc =
  \ (@ a_ag5) ->
    Control.Exception.Base.absentError
      @ (ShouldFail.Bar a_ag5)
      "w_sk2{v} [lid] main:ShouldFail.Bar{tc r9Z} a{tv ag5} [tv]"

$dOrd_skb :: forall a_ag5. GHC.Classes.Ord a_ag5
[LclId]
$dOrd_skb =
  \ (@ a_ag5) ->
    Control.Exception.Base.absentError
      @ (GHC.Classes.Ord a_ag5)
      "w_sk1{v} [lid] ghc-prim:GHC.Classes.Ord{tc 2c} a{tv ag5} [tv]"

lvl_skh :: forall a_ag5. GHC.Classes.Eq a_ag5
[LclId]
lvl_skh =
  \ (@ a_ag5) -> GHC.Classes.$p1Ord @ a_ag5 ($dOrd_skb @ a_ag5)

$w$ccompare_sk5 :: forall a_ag5. GHC.Types.Ordering
[LclId, Str=DmdType b]
$w$ccompare_sk5 =
  \ (@ a_ag5) ->
    case $c==_agv
           @ a_ag5 (lvl_skh @ a_ag5) (eta_skc @ a_ag5) (eta_skd @ a_ag5)
    of wild_00 {
    }

$ccompare_agI [InlPrag=INLINE[0]]
  :: forall a_ag5.
     GHC.Classes.Ord a_ag5 =>
     ShouldFail.Bar a_ag5 -> ShouldFail.Bar a_ag5 -> GHC.Types.Ordering
[LclId,
 Arity=3,
 Str=DmdType AAAb,
 Unf=Unf{Src=Worker=$w$ccompare_sk5, TopLvl=True, Arity=3,
         Value=True, ConLike=True, WorkFree=True, Expandable=True,
         Guidance=ALWAYS_IF(unsat_ok=True,boring_ok=True)
         Tmpl= \ (@ a_ag5) _ _ _ -> $w$ccompare_sk5 @ a_ag5}]
$ccompare_agI = \ (@ a_ag5) _ _ _ -> $w$ccompare_sk5 @ a_ag5

$c<=_ah4
  :: forall a_ag5.
     GHC.Classes.Ord a_ag5 =>
     ShouldFail.Bar a_ag5 -> ShouldFail.Bar a_ag5 -> GHC.Types.Bool
[LclId,
 Arity=3,
 Str=DmdType AAAb,
 Unf=Unf{Src=InlineStable, TopLvl=True, Arity=3, Value=True,
         ConLike=True, WorkFree=True, Expandable=True,
         Guidance=ALWAYS_IF(unsat_ok=True,boring_ok=False)
         Tmpl= \ (@ a_ag5)
                 ($dOrd_agD [Occ=Once] :: GHC.Classes.Ord a_ag5)
                 (x_ahU [Occ=Once] :: ShouldFail.Bar a_ag5)
                 (y_ahV [Occ=Once] :: ShouldFail.Bar a_ag5) ->
                 case $ccompare_agI @ a_ag5 $dOrd_agD x_ahU y_ahV of _ { }}]
$c<=_ah4 = \ (@ a_ag5) _ _ _ -> case $w$ccompare_sk5 of wild_00 { }

$c<_agS
  :: forall a_ag5.
     GHC.Classes.Ord a_ag5 =>
     ShouldFail.Bar a_ag5 -> ShouldFail.Bar a_ag5 -> GHC.Types.Bool
[LclId,
 Arity=3,
 Str=DmdType AAAb,
 Unf=Unf{Src=InlineStable, TopLvl=True, Arity=3, Value=True,
         ConLike=True, WorkFree=True, Expandable=True,
         Guidance=ALWAYS_IF(unsat_ok=True,boring_ok=False)
         Tmpl= \ (@ a_ag5)
                 ($dOrd_agD [Occ=Once] :: GHC.Classes.Ord a_ag5)
                 (x_aii [Occ=Once] :: ShouldFail.Bar a_ag5)
                 (y_aij [Occ=Once] :: ShouldFail.Bar a_ag5) ->
                 case $ccompare_agI @ a_ag5 $dOrd_agD x_aii y_aij of _ { }}]
$c<_agS = $c<=_ah4

$c>=_agW
  :: forall a_ag5.
     GHC.Classes.Ord a_ag5 =>
     ShouldFail.Bar a_ag5 -> ShouldFail.Bar a_ag5 -> GHC.Types.Bool
[LclId,
 Arity=3,
 Str=DmdType AAAb,
 Unf=Unf{Src=InlineStable, TopLvl=True, Arity=3, Value=True,
         ConLike=True, WorkFree=True, Expandable=True,
         Guidance=ALWAYS_IF(unsat_ok=True,boring_ok=False)
         Tmpl= \ (@ a_ag5)
                 ($dOrd_agD [Occ=Once] :: GHC.Classes.Ord a_ag5)
                 (x_aia [Occ=Once] :: ShouldFail.Bar a_ag5)
                 (y_aib [Occ=Once] :: ShouldFail.Bar a_ag5) ->
                 case $ccompare_agI @ a_ag5 $dOrd_agD x_aia y_aib of _ { }}]
$c>=_agW = $c<=_ah4

$c>_ah0
  :: forall a_ag5.
     GHC.Classes.Ord a_ag5 =>
     ShouldFail.Bar a_ag5 -> ShouldFail.Bar a_ag5 -> GHC.Types.Bool
[LclId,
 Arity=3,
 Str=DmdType AAAb,
 Unf=Unf{Src=InlineStable, TopLvl=True, Arity=3, Value=True,
         ConLike=True, WorkFree=True, Expandable=True,
         Guidance=ALWAYS_IF(unsat_ok=True,boring_ok=False)
         Tmpl= \ (@ a_ag5)
                 ($dOrd_agD [Occ=Once] :: GHC.Classes.Ord a_ag5)
                 (x_ai2 [Occ=Once] :: ShouldFail.Bar a_ag5)
                 (y_ai3 [Occ=Once] :: ShouldFail.Bar a_ag5) ->
                 case $ccompare_agI @ a_ag5 $dOrd_agD x_ai2 y_ai3 of _ { }}]
$c>_ah0 = $c<=_ah4

$cmax_ah8
  :: forall a_ag5.
     GHC.Classes.Ord a_ag5 =>
     ShouldFail.Bar a_ag5
     -> ShouldFail.Bar a_ag5 -> ShouldFail.Bar a_ag5
[LclId,
 Arity=3,
 Str=DmdType ASSb,
 Unf=Unf{Src=InlineStable, TopLvl=True, Arity=3, Value=True,
         ConLike=True, WorkFree=True, Expandable=True,
         Guidance=ALWAYS_IF(unsat_ok=True,boring_ok=False)
         Tmpl= \ (@ a_ag5)
                 ($dOrd_agD [Occ=Once] :: GHC.Classes.Ord a_ag5)
                 (x_ahK [Occ=Once] :: ShouldFail.Bar a_ag5)
                 (y_ahL [Occ=Once] :: ShouldFail.Bar a_ag5) ->
                 case $ccompare_agI @ a_ag5 $dOrd_agD x_ahK y_ahL of _ { }}]
$cmax_ah8 = $c<=_ah4

$cmin_ahc
  :: forall a_ag5.
     GHC.Classes.Ord a_ag5 =>
     ShouldFail.Bar a_ag5
     -> ShouldFail.Bar a_ag5 -> ShouldFail.Bar a_ag5
[LclId,
 Arity=3,
 Str=DmdType ASSb,
 Unf=Unf{Src=InlineStable, TopLvl=True, Arity=3, Value=True,
         ConLike=True, WorkFree=True, Expandable=True,
         Guidance=ALWAYS_IF(unsat_ok=True,boring_ok=False)
         Tmpl= \ (@ a_ag5)
                 ($dOrd_agD [Occ=Once] :: GHC.Classes.Ord a_ag5)
                 (x_ahy [Occ=Once] :: ShouldFail.Bar a_ag5)
                 (y_ahz [Occ=Once] :: ShouldFail.Bar a_ag5) ->
                 case $ccompare_agI @ a_ag5 $dOrd_agD x_ahy y_ahz of _ { }}]
$cmin_ahc = $c<=_ah4

lvl_ski
  :: forall a_ag5.
     ShouldFail.Bar a_ag5 -> ShouldFail.Bar a_ag5 -> GHC.Types.Ordering
[LclId, Arity=2, Str=DmdType TTb]
lvl_ski = \ (@ a_ag5) _ _ -> $w$ccompare_sk5 @ a_ag5

ShouldFail.$fOrdBar [InlPrag=[ALWAYS] CONLIKE]
  :: forall a_ag5.
     GHC.Classes.Ord a_ag5 =>
     GHC.Classes.Ord (ShouldFail.Bar a_ag5)
[LclIdX[DFunId],
 Arity=1,
 Str=DmdType Lm,
 Unf=DFun(arity=2) GHC.Classes.D:Ord [$c$p1Ord_agG, $ccompare_agI,
                                      $c<_agS, $c>=_agW, $c>_ah0, $c<=_ah4, $cmax_ah8, $cmin_ahc]]
ShouldFail.$fOrdBar =
  \ (@ a_ag5) ($dOrd_agD [Dmd=Just L] :: GHC.Classes.Ord a_ag5) ->
    GHC.Classes.D:Ord
      @ (ShouldFail.Bar a_ag5)
      ($c$p1Ord_agG @ a_ag5 $dOrd_agD)
      (lvl_ski @ a_ag5)
      ($c<_agS @ a_ag5 $dOrd_agD)
      ($c>=_agW @ a_ag5 $dOrd_agD)
      ($c>_ah0 @ a_ag5 $dOrd_agD)
      ($c<=_ah4 @ a_ag5 $dOrd_agD)
      ($cmax_ah8 @ a_ag5 $dOrd_agD)
      ($cmin_ahc @ a_ag5 $dOrd_agD)

*** End of Offense ***


<no location info>: 
Compilation had errors



*** unexpected failure for tc078(optasm)
Trac metadata
Trac field Value
Version 7.5
Type Bug
TypeOfFailure OtherFailure
Priority high
Resolution Unresolved
Component Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture
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