[Bug fortran/5900] [g77 & gfortran] Lapack regressions since g77 2.95.2

Thomas dot Koenig at online dot de gcc-bugzilla@gcc.gnu.org
Tue Feb 8 21:35:00 GMT 2005

------- Additional Comments From Thomas dot Koenig at online dot de  2005-02-08 15:36 -------
(In reply to comment #34)
> Please, try the opposite: disable optimizations through -O1 -fno-[optnam] and 
> see if you find out something.

Still the same four failures with

#! /bin/sh
for a in \
 verbose-asm \
 cprop-registers defer-pop \
 guess-branch-probability if-conversion if-conversion2 \
 loop-optimize \
 loop-optimize2 merge-constants omit-frame-pointer \
 split-ivs-in-unroller trapping-math \
 tree-ccp tree-ch tree-copyrename tree-dce tree-dominator-opts \
 tree-dse tree-fre tree-loop-im tree-loop-ivcanon \
 tree-loop-optimize tree-lrs tree-sra tree-ter
        echo $a
        rm *.o
        gfortran -c -g -O1 -fno-$a ../*.f \
        && gfortran -c -g -O0 ../dlasy2.f \
        && gfortran -g *.o -o xeigtstd \
        && xeigtstd < ded.in > $a.out

The separate compilation of dlasy2.f is to get around
the segfault in PR 18977.

Any important optimization options that I've missed?




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