[CIR][CodeGen] Complex Type Abstract Conditional Operator

[tommymcm]

_Complex A() {
   _Complex a;
   0 ?: a;
}

clangir/clang/lib/CIR/CodeGen/CIRGenExprComplex.cpp

Line 314 in aeac352

llvm_unreachable("NYI");

[AmrDeveloper]

I already implemented it in the upstream, I will backport it soon 👍🏻

llvm/llvm-project#147090

Same also for comma operator

[tommymcm]

Wicked, thanks @AmrDeveloper