Re: [PATCH] LoongArch: Use bstrins instruction for (a & ~mask) and (a & mask) | (b & ~mask) [PR111252]

On Thu, 2023-09-07 at 10:15 +0800, chenglulu wrote: > > 在 2023/9/6 下午6:58, Xi Ruoyao 写道: > > Forgot to mention: I've bootstrapped and regtested this patch on > > loongarch64-linux-gnu (with PR110939 patch applied to unbreak the > > bootstrapping).  Ok for trunk? > > LGTM! > > Thanks! Pushed r14

Re: [PATCH] LoongArch: Use bstrins instruction for (a & ~mask) and (a & mask) | (b & ~mask) [PR111252]

在 2023/9/6 下午6:58, Xi Ruoyao 写道: Forgot to mention: I've bootstrapped and regtested this patch on loongarch64-linux-gnu (with PR110939 patch applied to unbreak the bootstrapping). Ok for trunk? LGTM! Thanks! On Wed, 2023-09-06 at 18:46 +0800, Xi Ruoyao wrote: If mask is a constant with

Re: [PATCH] LoongArch: Use bstrins instruction for (a & ~mask) and (a & mask) | (b & ~mask) [PR111252]

Forgot to mention: I've bootstrapped and regtested this patch on loongarch64-linux-gnu (with PR110939 patch applied to unbreak the bootstrapping). Ok for trunk? On Wed, 2023-09-06 at 18:46 +0800, Xi Ruoyao wrote: > If mask is a constant with value ((1 << N) - 1) << M we can perform this > optimi

[PATCH] LoongArch: Use bstrins instruction for (a & ~mask) and (a & mask) | (b & ~mask) [PR111252]

If mask is a constant with value ((1 << N) - 1) << M we can perform this optimization. gcc/ChangeLog: PR target/111252 * config/loongarch/loongarch-protos.h (loongarch_pre_reload_split): Declare new function. (loongarch_use_bstrins_for_ior_with_mask): Likewise.