Bug#285238: [ARM] gcc-3.3 -O3 -fPIC produce wrong code via auto inlining
Package: gcc-3.3
Version: 1:3.3.5-3
Severity: normal
Hello GCC developers and ARM porters,
gcc-3.3 -O3 -fPIC miscompile pari on ARM.
(see
<http://buildd.debian.org/fetch.php?&pkg=pari&ver=2.1.6-1&arch=arm&stamp=1102707589&file=log&as=raw>)
More precisely the file src/basemath/alglin1.c
is miscompiled with -O3 -fPIC but correctly compiled with -O3 or -O2 -fPIC
This is a regression since gcc-3.3_1:3.3.2-0pre5 built the same
file correctly with -O3 -fPIC.
Apparenlty gcc inline the function use_maximal_pivot() inside
gauss_pivot_ker() and produce wrong code there.
Removing the static qualifier from use_maximal_pivot() (thus forbidding
the compiler to enable) work around the bug.
If you want, I might dig farther into the problem at a later date.
Cheers,
--
Bill. <ballombe@debian.org>
Imagine a large red swirl here.
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