[flang-commits] [flang] [llvm] [flang] Use backend fp128 support to determine REAL(16) availability (PR #221907)

[Tarun Prabhu via flang-commits]

tarunprabhu wrote:

> Would using the availability of the relevant F128 libcalls (e.g. ADD_F128/SUB_F128/MUL_F128/DIV_F128) as the criterion for REAL(16) frontend availability sound reasonable to you?

Where are these libcalls defined? Is it compiler-rt, libquadmath, or some other library?

https://github.com/llvm/llvm-project/pull/221907