[llvm] [CodeGen][NewPM] Port "PostRAMachineSink" pass to NPM (PR #129690)

[Akshat Oke via llvm-commits]

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@@ -2390,7 +2390,5 @@ PostRAMachineSinkingPass::run(MachineFunction &MF,
   if (!PostRAMachineSinkingImpl().run(MF))
     return PreservedAnalyses::all();
 
-  auto PA = getMachineFunctionPassPreservedAnalyses();
-  PA.preserveSet<CFGAnalyses>();
-  return PA;
+  return getMachineFunctionPassPreservedAnalyses().preserveSet<CFGAnalyses>();
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optimisan wrote:

I think the clang-format's one line enforcement looks worse here, but I'm fine with anything.

Perhaps should chain only if there are a few more calls so it gets split into multiple lines.


https://github.com/llvm/llvm-project/pull/129690