> While looking at the insn enable condition, I noticed that we don't > use "probe_stack" pattern any more, as the stack check loop is now > implemented in a different way.
Yes, we do, probe_stack is a standard pattern called by the middle-end. > 2016-04-28 Uros Bizjak <ubiz...@gmail.com> > > * config/i386/i386.md (peephole2s for operations with memory inputs): > Use SWI mode iterator. > (peephole2s for operations with memory outputs): Ditto. > Do not check for stack checking probe. > > (probe_stack): Remove expander. > > Patch was bootstrapped and regression tested on x86_64-linux-gnu {,-m32}. How did you test it exactly? === acats tests === FAIL: c52103x FAIL: c52104x -- Eric Botcazou