On 04/01/2014 08:22 AM, H.J. Lu wrote: > On Tue, Apr 1, 2014 at 7:48 AM, Richard Henderson <r...@redhat.com> wrote: >> Yet more fallout from my float->int changes. >> >> This time the failure is during sched1, where we try to constrain_operands to >> figure out what the sched parameters are for the insn. Except that since >> this >> is before register allocation, where we are going to force the operand to >> memory, there were no alternatives that match. >> >> This seems a bit of a hacky solution, keeping the register alternative >> enabled >> until we get to register allocation, but it's restricted in scope to the i386 >> backend and thus gets extra points at this stage. >> >> Another possibility is to have constrain_alternatives randomly pick an >> alternative, assuming the register allocator will DTRT or barf later. >> >> Thoughts? > > Shouldn't it include the testcase?
Oops. Forgot to add the file to the commit. Now done. r~
