[CodeGen][NewPM] Port `LiveIntervals` to new pass manager (#98118)

- Add `LiveIntervalsAnalysis`.
- Add `LiveIntervalsPrinterPass`.
- Use `LiveIntervalsWrapperPass` in legacy pass manager.
- Use `std::unique_ptr` instead of raw pointer for `LICalc`, so
destructor and default move constructor can handle it correctly.

This would be the last analysis required by `PHIElimination`.

1 files changed, 4 insertions, 4 deletions

diff --git a/llvm/lib/CodeGen/MachineScheduler.cpp b/llvm/lib/CodeGen/MachineScheduler.cpp
index 50eac1a..a8a1710 100644
--- a/llvm/lib/CodeGen/MachineScheduler.cpp
+++ b/llvm/lib/CodeGen/MachineScheduler.cpp
@@ -269,7 +269,7 @@ INITIALIZE_PASS_DEPENDENCY(AAResultsWrapperPass)
 INITIALIZE_PASS_DEPENDENCY(MachineDominatorTreeWrapperPass)
 INITIALIZE_PASS_DEPENDENCY(MachineLoopInfoWrapperPass)
 INITIALIZE_PASS_DEPENDENCY(SlotIndexesWrapperPass)
-INITIALIZE_PASS_DEPENDENCY(LiveIntervals)
+INITIALIZE_PASS_DEPENDENCY(LiveIntervalsWrapperPass)
 INITIALIZE_PASS_END(MachineScheduler, DEBUG_TYPE,
                     "Machine Instruction Scheduler", false, false)
 
@@ -285,8 +285,8 @@ void MachineScheduler::getAnalysisUsage(AnalysisUsage &AU) const {
   AU.addRequired<TargetPassConfig>();
   AU.addRequired<SlotIndexesWrapperPass>();
   AU.addPreserved<SlotIndexesWrapperPass>();
-  AU.addRequired<LiveIntervals>();
-  AU.addPreserved<LiveIntervals>();
+  AU.addRequired<LiveIntervalsWrapperPass>();
+  AU.addPreserved<LiveIntervalsWrapperPass>();
   MachineFunctionPass::getAnalysisUsage(AU);
 }
 
@@ -449,7 +449,7 @@ bool MachineScheduler::runOnMachineFunction(MachineFunction &mf) {
   PassConfig = &getAnalysis<TargetPassConfig>();
   AA = &getAnalysis<AAResultsWrapperPass>().getAAResults();
 
-  LIS = &getAnalysis<LiveIntervals>();
+  LIS = &getAnalysis<LiveIntervalsWrapperPass>().getLIS();
 
   if (VerifyScheduling) {
     LLVM_DEBUG(LIS->dump());