On Tue, Jan 8, 2013 at 12:26 AM, Jakub Jelinek <ja...@redhat.com> wrote: > On Mon, Jan 07, 2013 at 05:52:23PM +0100, Uros Bizjak wrote: >> TBH, I'm not that familiar with the RTL infrastructure enough to >> answer these questions. While I can spend some time on this problem, >> and probably waste quite some reviewer's time, the problem is not that >> trivial as I hoped to be, so I would kindly ask someone with better >> understanding of this part of the compiler for the proper solution. > > After discussion with rth on IRC, this modified patch just uses > volatile_insn_p, making all UNSPEC_VOLATILE (wherever in insn) and asm > volatile into a complete scheduling barrier for optimizations that use this > function.
Thanks! Just two little nits in the testcase: > +foo (int size, double y[], double x[]) foo (int size, double *y, double *x) > + return (sum); return sum; Uros.
