OK with few minor comments
> This patch only support landing pad value is 1.
Should be 0?
> --- /dev/null
> +++ b/gcc/config/riscv/riscv-zicfilp.cc
> @@ -0,0 +1,169 @@
> +/* Branch Target Identification for RISCV architecture.
> + Copyright (C) 2019-2024 Free Software Foundation, Inc.
2025
>
This patch only support landing pad value is 1.
The next version will implement function signature based labeling
scheme.
RISC-V CFI SPEC: https://github.com/riscv/riscv-cfi
gcc/ChangeLog:
* gcc/common/config/riscv/riscv-common.cc: Add ZICFILP ISA
string.
* gcc/config.gc
