[LLVMbugs] [Bug 8472] New: dragonegg causes failures in fortran blas results

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Tue Oct 26 18:37:07 PDT 2010


           Summary: dragonegg causes failures in fortran blas results
           Product: dragonegg
           Version: 2.8
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: New Bugs
        AssignedTo: baldrick at free.fr
        ReportedBy: jpswensen at gmail.com
                CC: llvmbugs at cs.uiuc.edu

The following simple test program is part of the Octave configure check and
fails when trying to use dragonegg to compile using dragonegg and GCC 4.5.1 as
provided by Ubuntu 10.10.
       program main

       complex cdotu,a(1),b(1),w
       external cdotu
       a(1) = cmplx(1e0,1e0)
       b(1) = cmplx(1e0,2e0)
       w = cdotu(1,a,1,b,1)
       print *, w, a(1)*b(1)
       if (w .ne. a(1)*b(1)) stop 1


$ gfortran-4.5 -o conftest -O0 -mieee-fp   conftest.f -lblas -lm
$ ./conftest
(-1.00000, 3.0000)  (-1.00000, 3.0000)
$ gfortran-4.5 -fplugin=/usr/lib/gcc/i686-linux-gnu/4.5/plugin/dragonegg.so -o
conftest -O0 conftest.f -lblas -lm
$ ./conftest
(NaN, NaN) (-1.00000, 3.0000)

I will try the svn tip to compare and report back.

As you can see the

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