[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/Target/WebAssembly/WebAssemblyRegStackify.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyRegStackify.cpp
index a53b4d4..17e166c 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyRegStackify.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyRegStackify.cpp
@@ -50,10 +50,10 @@ class WebAssemblyRegStackify final : public MachineFunctionPass {
   void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.setPreservesCFG();
     AU.addRequired<MachineDominatorTreeWrapperPass>();
-    AU.addRequired<LiveIntervals>();
+    AU.addRequired<LiveIntervalsWrapperPass>();
     AU.addPreserved<MachineBlockFrequencyInfo>();
     AU.addPreserved<SlotIndexesWrapperPass>();
-    AU.addPreserved<LiveIntervals>();
+    AU.addPreserved<LiveIntervalsWrapperPass>();
     AU.addPreservedID(LiveVariablesID);
     AU.addPreserved<MachineDominatorTreeWrapperPass>();
     MachineFunctionPass::getAnalysisUsage(AU);
@@ -815,7 +815,7 @@ bool WebAssemblyRegStackify::runOnMachineFunction(MachineFunction &MF) {
   const auto *TII = MF.getSubtarget<WebAssemblySubtarget>().getInstrInfo();
   const auto *TRI = MF.getSubtarget<WebAssemblySubtarget>().getRegisterInfo();
   auto &MDT = getAnalysis<MachineDominatorTreeWrapperPass>().getDomTree();
-  auto &LIS = getAnalysis<LiveIntervals>();
+  auto &LIS = getAnalysis<LiveIntervalsWrapperPass>().getLIS();
 
   // Walk the instructions from the bottom up. Currently we don't look past
   // block boundaries, and the blocks aren't ordered so the block visitation