Re: [PATCH] RISC-V: Add minimal support of double trap extension 1.0

[Jeff Law]

On 5/22/25 12:21 AM, Jerry Zhang Jian wrote:

Add support of double trap extension [1], enabling GCC
to recognize the following extensions at compile time.

New extensions:
     - ssdbltrp
     - smdbltrp

[1] 
https://github.com/riscv/riscv-double-trap/releases/download/v1.0/riscv-double-trap.pdf

gcc/ChangeLog:
     * config/riscv/riscv-ext.def: New extensions

gcc/testsuite/ChangeLog:
     * gcc/testsuite/gcc.target/riscv/arch-56.c: New test
     * gcc/testsuite/gcc.target/riscv/arch-57.c: New test

This fails to build.  See the logs here:

https://github.com/ewlu/gcc-precommit-ci/issues/3413#issuecomment-2900108005

Jeff