Hi all,
When compiling some program with -O2 using ghc-7.0.1, I got warnings like
> SpecConstr
> Function `$j_s7Xo{v} [lid]'
> has three call patterns, but the limit is 1
> Use -fspec-constr-count=n to set the bound
> Use -dppr-debug to see specialisations
> SpecConstr
> Function `$j_s7YI{v} [lid]' has 7 call patterns, but the limit is 3
> Use -fspec-constr-count=n to set the bound
> Use -dppr-debug to see specialisations
>
I proceeded to compile with -fspec-constr-count=10, but I still got
> SpecConstr
> Function `$j_s7Xo{v} [lid]' has 7 call patterns, but the limit is 1
> Use -fspec-constr-count=n to set the bound
> Use -dppr-debug to see specialisations
>
With -fspec-constr-count=55, I got
> SpecConstr
> Function `$j_s7Xo{v} [lid]' has 7 call patterns, but the limit is 6
> Use -fspec-constr-count=n to set the bound
> Use -dppr-debug to see specialisations
>
Finally, with -fspec-constr-count=56, the warnings disappear.
Is this a bug, or is the value of spec-constr-count being manipulated in
some way for certain passes?
Thanks,
Pedro
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