Re: [PATCH][AARCH64]Add csneg3_uxtw_insn pattern

2015-10-02 Thread James Greenhalgh
On Fri, Oct 02, 2015 at 10:21:48AM +0100, Renlin Li wrote: > Hi all, > > This is a simple patch to add csneg3_uxtw_insn into aarch64 backend. It > will save one uxtw instruction as a write to the 32-bit w-register > implicitly > zero-extends the value up to the full 64 bits of an x-register. >

[PATCH][AARCH64]Add csneg3_uxtw_insn pattern

2015-10-02 Thread Renlin Li
Hi all, This is a simple patch to add csneg3_uxtw_insn into aarch64 backend. It will save one uxtw instruction as a write to the 32-bit w-register implicitly zero-extends the value up to the full 64 bits of an x-register. aarch64-none-elf regression test Okay without any issues. Okay to commi