------- Comment #16 from mikpe at it dot uu dot se 2010-06-06 19:16 ------- Patch posted: http://gcc.gnu.org/ml/gcc-patches/2010-06/msg00481.html
I tried to use the existing stack tie instead of a full barrier, but it had no effect at all, causing the mis-schedules to reappear. I also tried to port over the PowerPC version of the stack tie, but that ICEd the compiler; I'm not yet good enough at .md hackery to resolve that one. So I went back to the initial patch, and bootstrapped and regtested it in native builds of 4.6, 4.5, and 4.4 on armv5tel-linux-gnueabi. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38644
