Re: gcc-4.8 + tree-loop-distribute-patterns breaks glibc-2.18

2013-05-21 Thread Ondřej Bílka
On Tue, May 21, 2013 at 10:34:35AM +0200, Richard Biener wrote: > On Mon, May 20, 2013 at 4:28 PM, Winfried Magerl > wrote: > > Hi, > > > > On Mon, May 20, 2013 at 09:40:52AM -0300, Adhemerval Zanella wrote: > >> Hi, > >> > >> Thanks for reporting it, I saw it too when building glibc with gcc-trun

Re: gcc-4.8 + tree-loop-distribute-patterns breaks glibc-2.18

2013-05-21 Thread Richard Biener
On Mon, May 20, 2013 at 4:28 PM, Winfried Magerl wrote: > Hi, > > On Mon, May 20, 2013 at 09:40:52AM -0300, Adhemerval Zanella wrote: >> Hi, >> >> Thanks for reporting it, I saw it too when building glibc with gcc-trunk. >> Carlos O'Donell already reported it could be an issue to glibc at >> http:

Re: gcc-4.8 + tree-loop-distribute-patterns breaks glibc-2.18

2013-05-20 Thread Winfried Magerl
Hi, On Mon, May 20, 2013 at 09:40:52AM -0300, Adhemerval Zanella wrote: > Hi, > > Thanks for reporting it, I saw it too when building glibc with gcc-trunk. > Carlos O'Donell already reported it could be an issue to glibc at > http://sourceware.org/ml/libc-alpha/2013-02/msg00299.html and I also no

gcc-4.8 + tree-loop-distribute-patterns breaks glibc-2.18

2013-05-20 Thread Winfried Magerl
Hi, I've tried to compile upcoming glibc-2.18 with gcc-4.8.x and optimized with '-O3' and testsuite breaks horrible with SIGSEGV and eating up all available memory. I've tracked it down to the flag 'tree-loop-distribute-patterns' and can reproduce the problem with CFLAGS='-g -O2 -ftree-loop-distr