[llvm-dev] llvm_any_ty equivalent in builtins

[Friedman, Eli via llvm-dev]

On 8/6/2018 2:04 PM, Dounia Khaldi via llvm-dev wrote:
> Hello,
>
> I have two intrinsics that take llvm_any_ty as an argument type (RV in 
> one intrinsic and as  an LValue in the other).
> What should be the equivalent builtin definition for this intrinsic? 
> Is dot "." the appropriate one to use?

There isn't any true equivalent to llvm_any_ty in clang, because it 
usually doesn't really make sense; a function usually has to have a 
specific type.  But you can use the "t" flag in Builtins.def to turn off 
normal type-checking, implement custom rules in 
Sema::CheckBuiltinFunctionCall, and implement custom code generation in 
CGBuiltin.  See, for example, __sync_fetch_and_add.


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