add isl_int_addmul_ui
add isl_int_addmul_ui

Signed-off-by: Sven Verdoolaege <e5350bbed4977f5eb8ae1dc6abd9ae59d21ace75@kotnet.org>

PollyLabs/isl,BobSaget-Mod/libisl,SaberMod/isl-current,Meinersbur/isl,evaautomation/isl,jleben/isl,abduld/isl,Meinersbur/isl,serge-sans-paille/isl,nicolasvasilache/isl,UBERTC/isl,nicolasvasilache/isl,abduld/isl,jleben/isl,VanirLLVM/toolchain_isl,PollyLabs/isl,inducer/isl-mirror,evaautomation/isl,cfx-next/toolchain_isl-upstream,UBERTC/isl,simbuerg/isl,jleben/isl,abduld/isl,cfx-next/toolchain_isl-upstream,VanirLLVM/toolchain_isl,VanirLLVM/toolchain_isl,KangDroidSMProject/ISL,nicolasvasilache/isl,BenzoSM/isl,serge-sans-paille/isl,inducer/isl-mirror,simbuerg/isl,PollyLabs/isl,abduld/isl,inducer/isl-mirror,BobSaget-Mod/libisl,SaberMod/isl-current,KangDroidSMProject/ISL,nicolasvasilache/isl,Distrotech/isl,serge-sans-paille/isl,KangDroidSMProject/ISL,BobSaget-Mod/libisl,simbuerg/isl,cfx-next/toolchain_isl-upstream,crossbuild/isl,simbuerg/isl,Distrotech/isl,UBERTC/isl,Meinersbur/isl,BenzoSM/isl,KangDroidSMProject/ISL,evaautomation/isl,jleben/isl,crossbuild/isl,cfx-next/toolchain_isl-upstream,PollyLabs/isl,VanirLLVM/toolchain_isl,UBERTC/isl,cfx-next/toolchain_isl-upstream,VanirLLVM/toolchain_isl,tobig/isl,BenzoSM/isl,inducer/isl-mirror,tobig/isl,BenzoSM/isl,KangDroidSMProject/ISL,BobSaget-Mod/libisl,SaberMod/isl-current,crossbuild/isl,serge-sans-paille/isl,serge-sans-paille/isl,evaautomation/isl,BenzoSM/isl,Distrotech/isl,BobSaget-Mod/libisl,simbuerg/isl,SaberMod/isl-current,inducer/isl-mirror,Meinersbur/isl,Distrotech/isl,tobig/isl,Distrotech/isl,crossbuild/isl,jleben/isl,nicolasvasilache/isl,tobig/isl,PollyLabs/isl