llvm-project

8e4f0d86 - [CIR] Upstream minimal builtin function call support (#142981)

[CIR] Upstream minimal builtin function call support (#142981) This patch adds all bits required to implement builtin function calls to ClangIR. It doesn't actually implement any of the builtins except those that fold to a constant ahead of CodeGen (`__builtin_is_constant_evaluated()` being one example).