Re: [PATCH] RISC-V: Fix RISCV_FUSE_ZEXTWS fusion condition

[Jeff Law]

On 12/20/23 01:39, Wang Pengcheng wrote:
From: wangpc

The condition is RISCV_FUSE_ZEXTH, which is a mistake.

gcc/ChangeLog:

* config/riscv/riscv.cc (riscv_macro_fusion_pair_p): Fix condition.
Thanks!  As soon as this patch finishes regression testing I'll push it 
to the trunk.

I'm curious, how did you find this?  Did you see a case where fusible 
ops weren't being kept together or did you find it just by code examination?

Jeff