isl_convex_hull.c: avoid side-effects in calls to isl_int_* macros
isl_convex_hull.c: avoid side-effects in calls to isl_int_* macros

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