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  • #11361

Closed
Open
Opened Jan 06, 2016 by niteria@trac-niteria

Test tc253 doesn't pass with reversed uniques

It fails with:

tc253.hs:23:7: error:
    • Couldn't match type ‘Maybe Int’ with ‘(String, Bool)’
      Expected type: Maybe Int -> (String, Int) -> Maybe Int
        Actual type: Fam Int Bool -> Fam Int Int -> Fam Int Bool
    • In the expression: inc (undefined :: Int)
      In an equation for ‘foo’: foo = inc (undefined :: Int)

Steps to reproduce:

  1. Add line

TEST_HC_OPTS += -dinitial-unique=16777000 -dunique-increment=-1

after line

TEST_HC_OPTS = -fforce-recomp -dcore-lint -dcmm-lint -dno-debug-output -no-user-$(GhcPackageDbFlag) -rtsopts $(EXTRA_HC_OPTS)

in mk/test.mk

  1. make TESTS=tc253

I suspect this is related to #11148 (closed) since the symptoms are similar.

Trac metadata
Trac field Value
Version 8.1
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler (Type checker)
Test case
Differential revisions
BlockedBy
Related
Blocking
CC goldfire, simonmar, simonpj
Operating system
Architecture
Assignee
Assign to
8.0.1
Milestone
8.0.1 (Past due)
Assign milestone
Time tracking
None
Due date
None
Reference: ghc/ghc#11361