[CodeGen][NewPM] Split `MachineDominatorTree` into a concrete analysis result (#94571)

Prepare for new pass manager version of `MachineDominatorTreeAnalysis`.
We may need a machine dominator tree version of `DomTreeUpdater` to
handle `SplitCriticalEdge` in some CodeGen passes.

1 files changed, 4 insertions, 5 deletions

diff --git a/llvm/lib/Target/AMDGPU/SIFixSGPRCopies.cpp b/llvm/lib/Target/AMDGPU/SIFixSGPRCopies.cpp
index a00ca625fc73..68c5f23c8e11 100644
--- a/llvm/lib/Target/AMDGPU/SIFixSGPRCopies.cpp
+++ b/llvm/lib/Target/AMDGPU/SIFixSGPRCopies.cpp
@@ -162,8 +162,8 @@ public:
   StringRef getPassName() const override { return "SI Fix SGPR copies"; }
 
   void getAnalysisUsage(AnalysisUsage &AU) const override {
-    AU.addRequired<MachineDominatorTree>();
-    AU.addPreserved<MachineDominatorTree>();
+    AU.addRequired<MachineDominatorTreeWrapperPass>();
+    AU.addPreserved<MachineDominatorTreeWrapperPass>();
     AU.setPreservesCFG();
     MachineFunctionPass::getAnalysisUsage(AU);
   }
@@ -173,7 +173,7 @@ public:
 
 INITIALIZE_PASS_BEGIN(SIFixSGPRCopies, DEBUG_TYPE,
                      "SI Fix SGPR copies", false, false)
-INITIALIZE_PASS_DEPENDENCY(MachineDominatorTree)
+INITIALIZE_PASS_DEPENDENCY(MachineDominatorTreeWrapperPass)
 INITIALIZE_PASS_END(SIFixSGPRCopies, DEBUG_TYPE,
                      "SI Fix SGPR copies", false, false)
 
@@ -611,8 +611,7 @@ bool SIFixSGPRCopies::runOnMachineFunction(MachineFunction &MF) {
   MRI = &MF.getRegInfo();
   TRI = ST.getRegisterInfo();
   TII = ST.getInstrInfo();
-  MDT = &getAnalysis<MachineDominatorTree>();
-
+  MDT = &getAnalysis<MachineDominatorTreeWrapperPass>().getDomTree();
 
   for (MachineFunction::iterator BI = MF.begin(), BE = MF.end();
                                                   BI != BE; ++BI) {