Bug#800318: gcc-5: [mips,mipsel] regression: miscompilation caused by -fexpensive-optimizations

2015-09-30 Thread Aurelien Jarno
On 2015-09-29 23:33, Andreas Cadhalpun wrote: > On 29.09.2015 22:54, Aurelien Jarno wrote: > > On 2015-09-29 19:41, Andreas Cadhalpun wrote: > >> Great. Can you estimate when that upload will happen? > >> (I'm trying to decide whether or not to workaround it in the meantime.) > > > > This is handl

Bug#800318: gcc-5: [mips,mipsel] regression: miscompilation caused by -fexpensive-optimizations

2015-09-29 Thread Andreas Cadhalpun
On 29.09.2015 22:54, Aurelien Jarno wrote: > On 2015-09-29 19:41, Andreas Cadhalpun wrote: >> Great. Can you estimate when that upload will happen? >> (I'm trying to decide whether or not to workaround it in the meantime.) > > This is handled by Matthias Klose, so it's a bit difficult to say, but

Bug#800318: gcc-5: [mips,mipsel] regression: miscompilation caused by -fexpensive-optimizations

2015-09-29 Thread Aurelien Jarno
On 2015-09-29 19:41, Andreas Cadhalpun wrote: > Hi, > > On 28.09.2015 21:52, Aurelien Jarno wrote: > > On 2015-09-28 18:17, Andreas Cadhalpun wrote: > >> Attached is a testcase for mips, but it works fine for mipsel. > >> > >> One more peculiarity I noticed is that adding 'c->A = 1;' to > >> an un

Bug#800318: gcc-5: [mips,mipsel] regression: miscompilation caused by -fexpensive-optimizations

2015-09-29 Thread Andreas Cadhalpun
Hi, On 28.09.2015 21:52, Aurelien Jarno wrote: > On 2015-09-28 18:17, Andreas Cadhalpun wrote: >> Attached is a testcase for mips, but it works fine for mipsel. >> >> One more peculiarity I noticed is that adding 'c->A = 1;' to >> an unused code path inverts the behavior: It works with >> -fexpens

Bug#800318: gcc-5: [mips,mipsel] regression: miscompilation caused by -fexpensive-optimizations

2015-09-28 Thread Aurelien Jarno
Hi On 2015-09-28 18:17, Andreas Cadhalpun wrote: > Hi Aurelien, > > On 28.09.2015 14:48, Aurelien Jarno wrote: > > On 2015-09-27 23:43, Andreas Cadhalpun wrote: > >> A slightly larger test case for mips is compiling ffmpeg... > > > > It what I did to test if the failure is due to the above chang

Bug#800318: gcc-5: [mips,mipsel] regression: miscompilation caused by -fexpensive-optimizations

2015-09-28 Thread Andreas Cadhalpun
Hi Aurelien, On 28.09.2015 14:48, Aurelien Jarno wrote: > On 2015-09-27 23:43, Andreas Cadhalpun wrote: >> A slightly larger test case for mips is compiling ffmpeg... > > It what I did to test if the failure is due to the above changes. > ffmpeg builds fine with gcc version 5.2.1-17 and -march=mi

Bug#800318: gcc-5: [mips,mipsel] regression: miscompilation caused by -fexpensive-optimizations

2015-09-28 Thread Aurelien Jarno
On 2015-09-27 23:43, Andreas Cadhalpun wrote: > Hi Aurelien, > > On 27.09.2015 23:10, Aurelien Jarno wrote: > > On 2015-09-27 20:37, Andreas Cadhalpun wrote: > > Thanks for the detailed testcase. I have been able to reproduce the > > issue on mipsel, but not on mips. > > Indeed, this test case on

Bug#800318: gcc-5: [mips,mipsel] regression: miscompilation caused by -fexpensive-optimizations

2015-09-27 Thread Andreas Cadhalpun
Hi Aurelien, On 27.09.2015 23:10, Aurelien Jarno wrote: > On 2015-09-27 20:37, Andreas Cadhalpun wrote: > Thanks for the detailed testcase. I have been able to reproduce the > issue on mipsel, but not on mips. Indeed, this test case only works on mipsel. However, the same tests of ffmpeg's testsu

Bug#800318: gcc-5: [mips,mipsel] regression: miscompilation caused by -fexpensive-optimizations

2015-09-27 Thread Aurelien Jarno
On 2015-09-27 20:37, Andreas Cadhalpun wrote: > Package: gcc-5 > Version: 5.2.1-17 > Severity: serious > Justification: causes ffmpeg to FTBFS > Control: affects -1 ffmpeg > X-Debbugs-Cc: Aurelien Jarno , > debian-m...@lists.debian.org > > > Dear Maintainer, > > ffmpeg 7:2.8-1 failed to build o

Bug#800318: gcc-5: [mips,mipsel] regression: miscompilation caused by -fexpensive-optimizations

2015-09-27 Thread Andreas Cadhalpun
Package: gcc-5 Version: 5.2.1-17 Severity: serious Justification: causes ffmpeg to FTBFS Control: affects -1 ffmpeg X-Debbugs-Cc: Aurelien Jarno , debian-m...@lists.debian.org Dear Maintainer, ffmpeg 7:2.8-1 failed to build on mips/mipsel due to test failures. I investigated the problem and it