ghc-HEAD -DDEBUG is broken (possiby by D1880)
Was found when tried to build with
BuildFlavour = devel2
ghc-validate $ LANG=C make V=0
HC [stage 2] libraries/parallel/dist-install/build/Control/Seq.o
WARNING: file compiler/stgSyn/CoreToStg.hs, line 250
using False True
ghc-stage2: panic! (the 'impossible' happened)
(GHC version 8.1.20160206 for x86_64-unknown-linux):
ASSERT failed!
CallStack (from HasCallStack):
assertPprPanic, called at compiler/stgSyn/CoreToStg.hs:216:59 in ghc:CoreToStg
using
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
suggests
changeset:4f9967aa
might be at fault.
Reverting it on top of master fixes devel2 build.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 8.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | osa1, skvadrik |
| Operating system | |
| Architecture |