[gcc(refs/vendors/riscv/heads/gcc-14-with-riscv-opts)] RISC-V: Describe -march behavior for dependent extensions

https://gcc.gnu.org/g:db238f5ae70cb461f0f9d7309208c6b36616b547 commit db238f5ae70cb461f0f9d7309208c6b36616b547 Author: Palmer Dabbelt Date: Tue Jul 2 18:20:39 2024 -0700 RISC-V: Describe -march behavior for dependent extensions gcc/ChangeLog: * doc/invoke.texi: De

[gcc(refs/vendors/riscv/heads/gcc-14-with-riscv-opts)] RISC-V: Describe -march behavior for dependent extensions

https://gcc.gnu.org/g:316bda6c8e290853cfca060f38b2f0f4281d65f9 commit 316bda6c8e290853cfca060f38b2f0f4281d65f9 Author: Palmer Dabbelt Date: Tue Jul 2 18:20:39 2024 -0700 RISC-V: Describe -march behavior for dependent extensions gcc/ChangeLog: * doc/invoke.texi: De