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Re: optimization/8599: [3.2 regression] loop unroll bug with -march=k6-3
> Yes, I'm sure, that's why I mentioned -O2 -funroll-loops, which is untested
> by a normal testsuite run, but I routinely run my testsuite with
> {-O2,-fpic,-fPIC,} as I've been bitten too often by the laxness of the
> testsuite in this respect.
Ho! I thought -O2 -funroll-loops was tested... sorry.
> Now, the problematic part is the doloop.c hunk as I just verified. So we
> have to find out how to fix it or we have to revert the patch on the branch
This patch by Dale
http://gcc.gnu.org/ml/gcc-patches/2002-09/msg01418.html
which fixes a problem introduced by a previous patch on mainline, has not been
backported to the branch whereas the previous patch has been backported.
Could you try to backport it to the branch ?
--
Eric Botcazou