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[Bug fortran/18518] d1mach(4) (BLAS) broken, g77 regression

From: "Thomas dot Koenig at online dot de" <gcc-bugzilla at gcc dot gnu dot org>
To: gcc-bugs at gcc dot gnu dot org
Date: 18 Nov 2004 09:02:37 -0000
Subject: [Bug fortran/18518] d1mach(4) (BLAS) broken, g77 regression
References: <20041116103451.18518.Thomas.Koenig@online.de>
Reply-to: gcc-bugzilla at gcc dot gnu dot org

------- Additional Comments From Thomas dot Koenig at online dot de  2004-11-18 09:02 -------
(In reply to comment #2)
> On AMD x32 the correct result is obtained with g77. g95 and pgfortran work as
> expected, only gfortran stops:
> 
> > gfortran d1mach.f && ./a.out
>   2.225073858507201E-308
> At line 215 of file d1mach.f
> STOP 778

Same result here, with the same processor.  There is different
(but not correct) behavior with -ffloat-store:

$ gfortran -ffloat-store d1mach.f && ./a.out
  2.225073858507201E-308
  4.882199637915989E-270
  5.092789898316654E-312
  4.925696698649795E-270
   2.79357004253718


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18518

References:
- [Bug fortran/18518] New: d1mach(4) (BLAS) broken, g77 regression
  - From: Thomas dot Koenig at online dot de

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