The addcarry and addcarryx builtins do the same thing. The only difference is that addcarryx previously required adx feature.
This commit removes the adx feature check from addcarryx and removes the addcarry builtin. This matches the builtins that gcc has. We don't guarantee compatibility in builtins, but we generally try to be consistent if its not a burden.
llvm-svn: 348738
This is the clang side of D51769. The llvm intrinsics now return two results instead of using an out parameter.
Differential Revision: https://reviews.llvm.org/D51771
llvm-svn: 341678