[Bug middle-end/40021] [4.5 Regression] Revision 146817 miscompiled DAXPY in BLAS

[hjl dot tools at gmail dot com]

------- Comment #4 from hjl dot tools at gmail dot com  2009-05-04 23:09 -------
The vectorizer seems broken:

/export/gnu/import/rrs/146817/usr/bin/gfortran -m32 -c -O2 -ftree-vectorize
-msse2 -mfpmath=sse -ffast-math -ffixed-form  test.f
/export/gnu/import/rrs/146817/usr/bin/gfortran -m32 -c -O2 -ftree-vectorize
-msse2 -mfpmath=sse -ffast-math -ffixed-form  daxpy.f
/export/gnu/import/rrs/146817/usr/bin/gfortran -m32
-Wl,-rpath,/export/gnu/import/rrs/146817/usr/lib -o daxpy test.o daxpy.o
./daxpy
           2 -2.20932289958000183E-002 != -2.22017297318430201E-002 
4.88703976462625395E-003
[hjl@gnu-33 pr40021]$ 


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40021