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

[Sean Fertile via llvm-commits]

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@@ -2884,6 +2901,12 @@ void PPCAIXAsmPrinter::emitFunctionDescriptor() {
 }
 
 void PPCAIXAsmPrinter::emitFunctionEntryLabel() {
+  if (!MF) { // TODO: MF is unset when processing an ifunc, handle it better.
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mandlebug wrote:

Can you clean this up by changing the conditional in line 2912 to `!TM.getFunctionSections() || (MF && MF->getFunction().hasSection())` then after have an early return if MF is null?

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