Re: Re: [PATCH] internal-fn: Convert uninitialized SSA_NAME into SCRATCH rtx[PR110751]

2023-09-17 Thread 钟居哲
Thanks Richard. Address comment in V2: [PATCH V2] internal-fn: Support undefined rtx for uninitialized SSA_NAME (gnu.org) juzhe.zh...@rivai.ai From: Richard Sandiford Date: 2023-09-17 18:29 To: Juzhe-Zhong CC: gcc-patches; rguenther Subject: Re: [PATCH] internal-fn: Convert uninitialized

Re: [PATCH] internal-fn: Convert uninitialized SSA_NAME into SCRATCH rtx[PR110751]

2023-09-17 Thread Richard Sandiford via Gcc-patches
Juzhe-Zhong writes: > According to PR: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110751 > > As Richard and Richi suggested, we recognize uninitialized SSA_NAME and > convert it > into SCRATCH rtx if the target predicate allows SCRATCH. > > It can help to reduce redundant data move instructions