Implement compressed arithmetic instructions for RISCV #122

Job	Run time
build-test-on-arm32	3m 3s
build-test-on-armt2	3m 2s
build-test-on-aarch64	1m 34s
build-test-on-loongarch64	2m 30s
build-test-on-riscv32	2m 12s
build-test-on-riscv32-extensions	2m 27s
build-test-on-riscv64	2m 22s
build-test-on-riscv64-extensions	2m 12s
build-test-on-s390x	2m 55s
build-test-on-x64	18s
build-test-on-x86	32s
	23m 7s

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