[llvm-branch-commits] [WebAssembly] Port WebAssemblyRegStackifyPass (PR #210224)

[Heejin Ahn via llvm-branch-commits]

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@@ -1021,3 +1026,31 @@ bool WebAssemblyRegStackify::runOnMachineFunction(MachineFunction &MF) {
 
   return Changed;
 }
+
+bool WebAssemblyRegStackifyLegacy::runOnMachineFunction(MachineFunction &MF) {
+  MachineDominatorTree *MDT = nullptr;
+  LiveIntervals *LIS = nullptr;
+  if (Optimize) {
+    MDT = &getAnalysis<MachineDominatorTreeWrapperPass>().getDomTree();
+    LIS = &getAnalysis<LiveIntervalsWrapperPass>().getLIS();
+  }
+  return regStackify(MF, Optimize, MDT, LIS);
+}
+
+PreservedAnalyses
+WebAssemblyRegStackifyPass::run(MachineFunction &MF,
+                                MachineFunctionAnalysisManager &MFAM) {
+  MachineDominatorTree *MDT = nullptr;
+  LiveIntervals *LIS = nullptr;
+  if (Optimize) {
+    MDT = &MFAM.getResult<MachineDominatorTreeAnalysis>(MF);
+    LIS = &MFAM.getResult<LiveIntervalsAnalysis>(MF);
+  }
+  bool Changed = regStackify(MF, Optimize, MDT, LIS);
+  if (!Changed)
+    return PreservedAnalyses::all();
+  return getMachineFunctionPassPreservedAnalyses()
+      .preserveSet<CFGAnalyses>()
+      .preserve<LiveIntervalsAnalysis>()
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aheejin wrote:

https://github.com/llvm/llvm-project/blob/6a33b69d8bae737e5e1d60c7b7776a0b1f885bfa/llvm/lib/Target/WebAssembly/WebAssemblyRegStackify.cpp#L59
`LiveVariables` is included in th I guess?is `LiveIntervalsAnslysis` I guess?

https://github.com/llvm/llvm-project/pull/210224