[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, 3 insertions, 3 deletions

diff --git a/llvm/lib/CodeGen/ModuloSchedule.cpp b/llvm/lib/CodeGen/ModuloSchedule.cpp
index 8b4a6fe..0f29ebe 100644
--- a/llvm/lib/CodeGen/ModuloSchedule.cpp
+++ b/llvm/lib/CodeGen/ModuloSchedule.cpp
@@ -2764,7 +2764,7 @@ public:
 
   void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.addRequired<MachineLoopInfoWrapperPass>();
-    AU.addRequired<LiveIntervals>();
+    AU.addRequired<LiveIntervalsWrapperPass>();
     MachineFunctionPass::getAnalysisUsage(AU);
   }
 };
@@ -2775,7 +2775,7 @@ char ModuloScheduleTest::ID = 0;
 INITIALIZE_PASS_BEGIN(ModuloScheduleTest, "modulo-schedule-test",
                       "Modulo Schedule test pass", false, false)
 INITIALIZE_PASS_DEPENDENCY(MachineLoopInfoWrapperPass)
-INITIALIZE_PASS_DEPENDENCY(LiveIntervals)
+INITIALIZE_PASS_DEPENDENCY(LiveIntervalsWrapperPass)
 INITIALIZE_PASS_END(ModuloScheduleTest, "modulo-schedule-test",
                     "Modulo Schedule test pass", false, false)
 
@@ -2810,7 +2810,7 @@ static void parseSymbolString(StringRef S, int &Cycle, int &Stage) {
 }
 
 void ModuloScheduleTest::runOnLoop(MachineFunction &MF, MachineLoop &L) {
-  LiveIntervals &LIS = getAnalysis<LiveIntervals>();
+  LiveIntervals &LIS = getAnalysis<LiveIntervalsWrapperPass>().getLIS();
   MachineBasicBlock *BB = L.getTopBlock();
   dbgs() << "--- ModuloScheduleTest running on BB#" << BB->getNumber() << "\n";