RISC-V: Enhance the test case for RVV vfsub/vfrsub rounding
This patch would like to enhance the vfsub/vfrsub rounding API test for
below 2 purposes.
* The non-rm API has no frm related insn generated.
* The rm API has the frm backup/restore/set insn generated.
Signed-off-by: Pan Li <pan2.li@intel.com>
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/base/float-point-single-rsub.c: Enhance
cases.
* gcc.target/riscv/rvv/base/float-point-single-sub.c: Ditto.
Signed-off-by: Pan Li <pan2.li@intel.com>