[clang] [compiler-rt] [llvm] [AIX] Implement the ifunc attribute. (PR #153049)

[Sean Fertile via llvm-commits]

================
@@ -5591,7 +5591,7 @@ static SDValue transformCallee(const SDValue &Callee, SelectionDAG &DAG,
     const GlobalValue *GV = cast<GlobalAddressSDNode>(Callee)->getGlobal();
 
     if (Subtarget.isAIXABI()) {
-      assert(!isa<GlobalIFunc>(GV) && "IFunc is not supported on AIX.");
+      // TODO: convert ifunc to indirect call
----------------
mandlebug wrote:

Whats the purpose of this comment? we are transforming the ifuncs to a trampoline, do you want to call the trampoline indirectly or is this a remnant from before the trampolines where we would need to call the ifunc using the descriptor?

https://github.com/llvm/llvm-project/pull/153049