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[Bug middle-end/30816] gfortran.dg/g77/intrinsic-unix-erf.f tests fail with optimization
- From: "tobi at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 17 Feb 2007 15:10:38 -0000
- Subject: [Bug middle-end/30816] gfortran.dg/g77/intrinsic-unix-erf.f tests fail with optimization
- References: <bug-30816-8513@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #11 from tobi at gcc dot gnu dot org 2007-02-17 15:10 -------
(In reply to comment #9)
> (In reply to comment #8)
> > Oh, just noticed this by chance: Steve's testcase also fails with optimization
> > disabled, again the call to mpfr_erf is issued in do_mpfr_arg1.
>
> Do you get a failure with a C testcase equivalent to Steve's fortran one?
>
> Does the GCC testcase gcc.dg/torture/builtin-math-3.c pass for you? That one
> tests for erf(1.0) and erf(-1.0). I'm curious if it's the value 1.5 or whether
> having it come from the fortran frontend (or either/both) which is the bug
> trigger.
I couldn't try with the testsuite due to an unrelated bug with fixincludes
(??), but the equivalent C testcase does indeed fail with the same error, as it
should.
I understand the idea of bulding with --prefix, it's just that I've had mixed
success using it wiht mpfr/gmp. Especially, when the system administrator
installed them locally behind my back. I'll give it a try, hopefully later
today.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30816