RISC-V: Skip flag -flto for all saturated arithmetic test cases.

Skip flat -flto to address UNRESOLVED cases as follows:

gcc.target/riscv/sat_s_add-1.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects: output file does not exist
UNRESOLVED: gcc.target/riscv/sat_s_add-1.c

Change-Id: I7ff55197b6294cd473dfaa6cc350c5e2eb5960fe
Signed-off-by: Li Xu <xuli1@eswincomputing.com>
gcc/testsuite/ChangeLog:

	* gcc.target/riscv/sat_s_add-1.c: Skip flag -flto.
	* gcc.target/riscv/sat_s_add-10.c: Ditto.
	* gcc.target/riscv/sat_s_add-11.c: Ditto.
	* gcc.target/riscv/sat_s_add-12.c: Ditto.
	* gcc.target/riscv/sat_s_add-13.c: Ditto.
	* gcc.target/riscv/sat_s_add-14.c: Ditto.
	* gcc.target/riscv/sat_s_add-15.c: Ditto.
	* gcc.target/riscv/sat_s_add-16.c: Ditto.
	* gcc.target/riscv/sat_s_add-2.c: Ditto.
	* gcc.target/riscv/sat_s_add-3.c: Ditto.
	* gcc.target/riscv/sat_s_add-4.c: Ditto.
	* gcc.target/riscv/sat_s_add-5.c: Ditto.
	* gcc.target/riscv/sat_s_add-6.c: Ditto.
	* gcc.target/riscv/sat_s_add-7.c: Ditto.
	* gcc.target/riscv/sat_s_add-8.c: Ditto.
	* gcc.target/riscv/sat_s_add-9.c: Ditto.
	* gcc.target/riscv/sat_s_sub-1-i16.c: Ditto.
	* gcc.target/riscv/sat_s_sub-1-i32.c: Ditto.
	* gcc.target/riscv/sat_s_sub-1-i64.c: Ditto.
	* gcc.target/riscv/sat_s_sub-1-i8.c: Ditto.
	* gcc.target/riscv/sat_s_sub-2-i16.c: Ditto.
	* gcc.target/riscv/sat_s_sub-2-i32.c: Ditto.
	* gcc.target/riscv/sat_s_sub-2-i64.c: Ditto.
	* gcc.target/riscv/sat_s_sub-2-i8.c: Ditto.
	* gcc.target/riscv/sat_s_sub-3-i16.c: Ditto.
	* gcc.target/riscv/sat_s_sub-3-i32.c: Ditto.
	* gcc.target/riscv/sat_s_sub-3-i64.c: Ditto.
	* gcc.target/riscv/sat_s_sub-3-i8.c: Ditto.
	* gcc.target/riscv/sat_s_sub-4-i16.c: Ditto.
	* gcc.target/riscv/sat_s_sub-4-i32.c: Ditto.
	* gcc.target/riscv/sat_s_sub-4-i64.c: Ditto.
	* gcc.target/riscv/sat_s_sub-4-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-1-i16-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-1-i32-to-i16.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-1-i32-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-1-i64-to-i16.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-1-i64-to-i32.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-1-i64-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-2-i16-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-2-i32-to-i16.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-2-i32-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-2-i64-to-i16.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-2-i64-to-i32.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-2-i64-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-3-i16-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-3-i32-to-i16.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-3-i32-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-3-i64-to-i16.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-3-i64-to-i32.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-3-i64-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-4-i16-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-4-i32-to-i16.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-4-i32-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-4-i64-to-i16.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-4-i64-to-i32.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-4-i64-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-5-i16-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-5-i32-to-i16.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-5-i32-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-5-i64-to-i16.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-5-i64-to-i32.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-5-i64-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-6-i16-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-6-i32-to-i16.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-6-i32-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-6-i64-to-i16.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-6-i64-to-i32.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-6-i64-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-7-i16-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-7-i32-to-i16.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-7-i32-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-7-i64-to-i16.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-7-i64-to-i32.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-7-i64-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-8-i16-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-8-i32-to-i16.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-8-i32-to-i8.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-8-i64-to-i16.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-8-i64-to-i32.c: Ditto.
	* gcc.target/riscv/sat_s_trunc-8-i64-to-i8.c: Ditto.
	* gcc.target/riscv/sat_u_add-1.c: Ditto.
	* gcc.target/riscv/sat_u_add-10.c: Ditto.
	* gcc.target/riscv/sat_u_add-11.c: Ditto.
	* gcc.target/riscv/sat_u_add-12.c: Ditto.
	* gcc.target/riscv/sat_u_add-13.c: Ditto.
	* gcc.target/riscv/sat_u_add-14.c: Ditto.
	* gcc.target/riscv/sat_u_add-15.c: Ditto.
	* gcc.target/riscv/sat_u_add-16.c: Ditto.
	* gcc.target/riscv/sat_u_add-17.c: Ditto.
	* gcc.target/riscv/sat_u_add-18.c: Ditto.
	* gcc.target/riscv/sat_u_add-19.c: Ditto.
	* gcc.target/riscv/sat_u_add-2.c: Ditto.
	* gcc.target/riscv/sat_u_add-20.c: Ditto.
	* gcc.target/riscv/sat_u_add-21.c: Ditto.
	* gcc.target/riscv/sat_u_add-22.c: Ditto.
	* gcc.target/riscv/sat_u_add-23.c: Ditto.
	* gcc.target/riscv/sat_u_add-24.c: Ditto.
	* gcc.target/riscv/sat_u_add-3.c: Ditto.
	* gcc.target/riscv/sat_u_add-4.c: Ditto.
	* gcc.target/riscv/sat_u_add-5.c: Ditto.
	* gcc.target/riscv/sat_u_add-6.c: Ditto.
	* gcc.target/riscv/sat_u_add-7.c: Ditto.
	* gcc.target/riscv/sat_u_add-8.c: Ditto.
	* gcc.target/riscv/sat_u_add-9.c: Ditto.
	* gcc.target/riscv/sat_u_add_imm-1.c: Ditto.
	* gcc.target/riscv/sat_u_add_imm-10.c: Ditto.
	* gcc.target/riscv/sat_u_add_imm-11.c: Ditto.
	* gcc.target/riscv/sat_u_add_imm-12.c: Ditto.
	* gcc.target/riscv/sat_u_add_imm-13.c: Ditto.
	* gcc.target/riscv/sat_u_add_imm-14.c: Ditto.
	* gcc.target/riscv/sat_u_add_imm-15.c: Ditto.
	* gcc.target/riscv/sat_u_add_imm-16.c: Ditto.
	* gcc.target/riscv/sat_u_add_imm-2.c: Ditto.
	* gcc.target/riscv/sat_u_add_imm-3.c: Ditto.
	* gcc.target/riscv/sat_u_add_imm-4.c: Ditto.
	* gcc.target/riscv/sat_u_add_imm-5.c: Ditto.
	* gcc.target/riscv/sat_u_add_imm-6.c: Ditto.
	* gcc.target/riscv/sat_u_add_imm-7.c: Ditto.
	* gcc.target/riscv/sat_u_add_imm-8.c: Ditto.
	* gcc.target/riscv/sat_u_add_imm-9.c: Ditto.
	* gcc.target/riscv/sat_u_sub-1.c: Ditto.
	* gcc.target/riscv/sat_u_sub-10.c: Ditto.
	* gcc.target/riscv/sat_u_sub-11.c: Ditto.
	* gcc.target/riscv/sat_u_sub-12.c: Ditto.
	* gcc.target/riscv/sat_u_sub-13.c: Ditto.
	* gcc.target/riscv/sat_u_sub-14.c: Ditto.
	* gcc.target/riscv/sat_u_sub-15.c: Ditto.
	* gcc.target/riscv/sat_u_sub-16.c: Ditto.
	* gcc.target/riscv/sat_u_sub-17.c: Ditto.
	* gcc.target/riscv/sat_u_sub-18.c: Ditto.
	* gcc.target/riscv/sat_u_sub-19.c: Ditto.
	* gcc.target/riscv/sat_u_sub-2.c: Ditto.
	* gcc.target/riscv/sat_u_sub-20.c: Ditto.
	* gcc.target/riscv/sat_u_sub-21.c: Ditto.
	* gcc.target/riscv/sat_u_sub-22.c: Ditto.
	* gcc.target/riscv/sat_u_sub-23.c: Ditto.
	* gcc.target/riscv/sat_u_sub-24.c: Ditto.
	* gcc.target/riscv/sat_u_sub-25.c: Ditto.
	* gcc.target/riscv/sat_u_sub-26.c: Ditto.
	* gcc.target/riscv/sat_u_sub-27.c: Ditto.
	* gcc.target/riscv/sat_u_sub-28.c: Ditto.
	* gcc.target/riscv/sat_u_sub-29.c: Ditto.
	* gcc.target/riscv/sat_u_sub-3.c: Ditto.
	* gcc.target/riscv/sat_u_sub-30.c: Ditto.
	* gcc.target/riscv/sat_u_sub-31.c: Ditto.
	* gcc.target/riscv/sat_u_sub-32.c: Ditto.
	* gcc.target/riscv/sat_u_sub-33.c: Ditto.
	* gcc.target/riscv/sat_u_sub-34.c: Ditto.
	* gcc.target/riscv/sat_u_sub-35.c: Ditto.
	* gcc.target/riscv/sat_u_sub-36.c: Ditto.
	* gcc.target/riscv/sat_u_sub-37.c: Ditto.
	* gcc.target/riscv/sat_u_sub-38.c: Ditto.
	* gcc.target/riscv/sat_u_sub-39.c: Ditto.
	* gcc.target/riscv/sat_u_sub-4.c: Ditto.
	* gcc.target/riscv/sat_u_sub-40.c: Ditto.
	* gcc.target/riscv/sat_u_sub-41.c: Ditto.
	* gcc.target/riscv/sat_u_sub-42.c: Ditto.
	* gcc.target/riscv/sat_u_sub-43.c: Ditto.
	* gcc.target/riscv/sat_u_sub-44.c: Ditto.
	* gcc.target/riscv/sat_u_sub-45.c: Ditto.
	* gcc.target/riscv/sat_u_sub-46.c: Ditto.
	* gcc.target/riscv/sat_u_sub-47.c: Ditto.
	* gcc.target/riscv/sat_u_sub-48.c: Ditto.
	* gcc.target/riscv/sat_u_sub-5.c: Ditto.
	* gcc.target/riscv/sat_u_sub-6.c: Ditto.
	* gcc.target/riscv/sat_u_sub-7.c: Ditto.
	* gcc.target/riscv/sat_u_sub-8.c: Ditto.
	* gcc.target/riscv/sat_u_sub-9.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-1.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-10.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-10_1.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-10_2.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-11.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-11_1.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-11_2.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-12.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-13.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-13_1.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-13_2.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-14.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-14_1.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-14_2.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-15.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-15_1.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-15_2.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-16.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-1_1.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-1_2.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-2.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-2_1.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-2_2.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-3.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-3_1.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-3_2.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-4.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-5.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-5_1.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-5_2.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-6.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-6_1.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-6_2.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-7.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-7_1.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-7_2.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-8.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-9.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-9_1.c: Ditto.
	* gcc.target/riscv/sat_u_sub_imm-9_2.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-1.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-10.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-11.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-12.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-13.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-14.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-15.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-16.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-17.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-18.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-19.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-2.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-20.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-21.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-22.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-23.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-24.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-3.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-4.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-5.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-6.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-7.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-8.c: Ditto.
	* gcc.target/riscv/sat_u_trunc-9.c: Ditto.