Implement compressed arithmetic instructions for RISCV #123

Job	Run time
build-test-on-arm32	2m 50s
build-test-on-loongarch64	1m 57s
build-test-on-armt2	3m 3s
build-test-on-aarch64	1m 39s
build-test-on-riscv32	3m 24s
build-test-on-riscv32-extensions	2m 11s
build-test-on-riscv64	2m 21s
build-test-on-riscv64-extensions	3m 36s
build-test-on-s390x	2m 51s
build-test-on-x86	1m 31s
build-test-on-x64	17s
	25m 40s

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