#4288: Poor -fspec-constr-count=n warning messages
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Reporter: igloo | Owner:
Type: bug | Status: new
Priority: normal | Milestone: 7.0.2
Component: Compiler | Version: 6.13
Keywords: | Testcase:
Blockedby: | Difficulty:
Os: Unknown/Multiple | Blocking:
Architecture: Unknown/Multiple | Failure: None/Unknown
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Comment(by simonpj):
SimonM says
> spec-constr-count decreases for nested specialisations. For instance,
> if spec-constr-count is 6 and SpecConstr generates 2 specialisations
> for a function foo, then spec-constr-count will be 3 for all functions
> nested in foo. You can turn it off completely with
> -fno-spec-constr-count.
The messages are a bit counter-intuitive though - I encountered this
recently too, and was baffled by the fact that the suggested flag, -fspec-
constr-count, didn't seem to have any effect.
Also, these messages should be clearly labelled as warnings, and there
should be a way to disable them (I realise they're being generated by the
SpecConstr pass and we don't normally generate warnings beyond the
desugarer, but still.)
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4288#comment:5>
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