nearest_1.f90 failure on i686-linux

[François-Xavier Coudert]

Hi Steve,

I see nearest_1.f90 failures at -O levels >= 1 on i686-linux, with a
GMP 4.2.0 and MPFR 2.2.0. The last trees produced by -fdump-tree-all
at -O0 and -O1 levels are attached for comparison. Is this supposed to
happen with you recent patch for MPFR version checking, or is there a
bug?

I can give you additional info if you wish, just tell me what to look for.

Thanks,
FX
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