Re: s390: rearrange temp moves in s390_expand_cs_hqi

2012-08-08 Thread Ulrich Weigand
Richard Henderson wrote: > In the same vein as your CAS boolean output patch, if we rearrange the > copies here we can get the combined compare-and-branch insn for the z10. > I see that the z196 prefers not to use those, but the number of insns > in that case remains the same, merely in a differen

s390: rearrange temp moves in s390_expand_cs_hqi

2012-08-08 Thread Richard Henderson
In the same vein as your CAS boolean output patch, if we rearrange the copies here we can get the combined compare-and-branch insn for the z10. I see that the z196 prefers not to use those, but the number of insns in that case remains the same, merely in a different order. Can you please test with