RISC-V: Add vmadd vv C api tests
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/base/vmadd_vv-1.c: New test.
* gcc.target/riscv/rvv/base/vmadd_vv-2.c: New test.
* gcc.target/riscv/rvv/base/vmadd_vv-3.c: New test.
* gcc.target/riscv/rvv/base/vmadd_vv_m-1.c: New test.
* gcc.target/riscv/rvv/base/vmadd_vv_m-2.c: New test.
* gcc.target/riscv/rvv/base/vmadd_vv_m-3.c: New test.
* gcc.target/riscv/rvv/base/vmadd_vv_mu-1.c: New test.
* gcc.target/riscv/rvv/base/vmadd_vv_mu-2.c: New test.
* gcc.target/riscv/rvv/base/vmadd_vv_mu-3.c: New test.
* gcc.target/riscv/rvv/base/vmadd_vv_tu-1.c: New test.
* gcc.target/riscv/rvv/base/vmadd_vv_tu-2.c: New test.
* gcc.target/riscv/rvv/base/vmadd_vv_tu-3.c: New test.
* gcc.target/riscv/rvv/base/vmadd_vv_tum-1.c: New test.
* gcc.target/riscv/rvv/base/vmadd_vv_tum-2.c: New test.
* gcc.target/riscv/rvv/base/vmadd_vv_tum-3.c: New test.
* gcc.target/riscv/rvv/base/vmadd_vv_tumu-1.c: New test.
* gcc.target/riscv/rvv/base/vmadd_vv_tumu-2.c: New test.
* gcc.target/riscv/rvv/base/vmadd_vv_tumu-3.c: New test.
18 files changed: