Re: Instability in successive builds of fortran mod files with f951

2012-10-05 Thread Janne Blomqvist
On Fri, Oct 5, 2012 at 9:53 PM, Ian Lance Taylor wrote: > On Fri, Oct 5, 2012 at 10:45 AM, Simon Baldwin wrote: >> >> I've looked at fortran/module.c and at libgomp/omp_lib.mod, and this >> is not a bug. > > This isn't particularly helpful, but, based on the rest of your > description, this is a

Re: Instability in successive builds of fortran mod files with f951

2012-10-05 Thread Ian Lance Taylor
On Fri, Oct 5, 2012 at 10:45 AM, Simon Baldwin wrote: > > I've looked at fortran/module.c and at libgomp/omp_lib.mod, and this > is not a bug. This isn't particularly helpful, but, based on the rest of your description, this is a bug. The compiler should never depend on the order of pointer valu

Instability in successive builds of fortran mod files with f951

2012-10-05 Thread Simon Baldwin
I'm seeing an element of "instability" in files written by f951. About one time in some tens or even hundreds of builds done with a tight loop, the file libgomp/omp_lib.mod has a different checksum from others. This is slightly problematic because it means that binary distributions of gcc can't be