From 6ea0c0a28343b2676baf480db490b5a27fa11d7c Mon Sep 17 00:00:00 2001
From: paperchalice <liujunchang97@outlook.com>
Date: Tue, 30 Apr 2024 09:54:48 +0800
Subject: [NewPM][CodeGen] Add `MachineFunctionAnalysis` (#88610)

In new pass system, `MachineFunction` could be an analysis result again,
machine module pass can now fetch them from analysis manager.
`MachineModuleInfo` no longer owns them.
Remove `FreeMachineFunctionPass`, replaced by
`InvalidateAnalysisPass<MachineFunctionAnalysis>`.

Now `FreeMachineFunction` is replaced by
`InvalidateAnalysisPass<MachineFunctionAnalysis>`, the workaround in
`MachineFunctionPassManager` is no longer needed, there is no difference
between `unittests/MIR/PassBuilderCallbacksTest.cpp` and
`unittests/IR/PassBuilderCallbacksTest.cpp`.
---
 llvm/lib/CodeGen/DeadMachineInstructionElim.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'llvm/lib/CodeGen/DeadMachineInstructionElim.cpp')

diff --git a/llvm/lib/CodeGen/DeadMachineInstructionElim.cpp b/llvm/lib/CodeGen/DeadMachineInstructionElim.cpp
index facc0145..578854c 100644
--- a/llvm/lib/CodeGen/DeadMachineInstructionElim.cpp
+++ b/llvm/lib/CodeGen/DeadMachineInstructionElim.cpp
@@ -68,7 +68,7 @@ DeadMachineInstructionElimPass::run(MachineFunction &MF,
                                     MachineFunctionAnalysisManager &) {
   if (!DeadMachineInstructionElimImpl().runImpl(MF))
     return PreservedAnalyses::all();
-  PreservedAnalyses PA;
+  PreservedAnalyses PA = getMachineFunctionPassPreservedAnalyses();
   PA.preserveSet<CFGAnalyses>();
   return PA;
 }
-- 
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