Re: [PATCH] RISC-V: costs: handle BSWAP

[Palmer Dabbelt]

On Tue, 08 Nov 2022 18:57:26 PST (-0800), jeffreya...@gmail.com wrote:

On 11/8/22 12:54, Philipp Tomsich wrote:
The BSWAP operation is not handled in rtx_costs. Add it.

With Zbb, BSWAP for XLEN is a single instruction; for smaller modes,
it will expand into two.

gcc/ChangeLog:

         * config/riscv/riscv.c (rtx_costs): Add BSWAP.

OK.

It's riscv_rtx_costs.

(I don't usually read ChangeLog entries that closely, just happened to 
stumble on it when poking around.)



Jeff