[gcc(refs/vendors/riscv/heads/gcc-14-with-riscv-opts)] RISC-V: Add testcases for unsigned .SAT_ADD vector form 2

https://gcc.gnu.org/g:0adc6ac7e846c9b8758a5fbc53ee8e1c55854c67 commit 0adc6ac7e846c9b8758a5fbc53ee8e1c55854c67 Author: Pan Li Date: Mon Jun 17 14:39:10 2024 +0800 RISC-V: Add testcases for unsigned .SAT_ADD vector form 2 After the middle-end support the form 2 of unsigned SAT_ADD

[gcc(refs/vendors/riscv/heads/gcc-14-with-riscv-opts)] RISC-V: Add testcases for unsigned .SAT_ADD vector form 2

https://gcc.gnu.org/g:ae07eb2afcc0c17759ca52ead3067b000787a115 commit ae07eb2afcc0c17759ca52ead3067b000787a115 Author: Pan Li Date: Mon Jun 17 14:39:10 2024 +0800 RISC-V: Add testcases for unsigned .SAT_ADD vector form 2 After the middle-end support the form 2 of unsigned SAT_ADD