Re: [PATCH][AArch64] Peephole for SUBS

2017-06-02 Thread James Greenhalgh
On Fri, Apr 21, 2017 at 09:20:52AM +0100, Kyrill Tkachov wrote: > Hi all, > > A pattern that sometimes occurs in the wild is to subtract two operands and > separately compare them. This can be implemented as a single SUBS instruction > and we actually have a define_insn for this: sub3_compare1. H

Re: [PATCH][AArch64] Peephole for SUBS

2017-06-02 Thread Kyrill Tkachov
Ping. Thanks, Kyrill On 11/05/17 11:14, Kyrill Tkachov wrote: Ping. https://gcc.gnu.org/ml/gcc-patches/2017-04/msg00931.html Thanks, Kyrill On 21/04/17 09:20, Kyrill Tkachov wrote: Hi all, A pattern that sometimes occurs in the wild is to subtract two operands and separately compare them.

Re: [PATCH][AArch64] Peephole for SUBS

2017-05-11 Thread Kyrill Tkachov
Ping. https://gcc.gnu.org/ml/gcc-patches/2017-04/msg00931.html Thanks, Kyrill On 21/04/17 09:20, Kyrill Tkachov wrote: Hi all, A pattern that sometimes occurs in the wild is to subtract two operands and separately compare them. This can be implemented as a single SUBS instruction and we act