AS: Rename to greedy, CFG obviation, comment fix

Author: optimisan

llvm/include/llvm/CodeGen/MachineFunction.h

@@ -927,7 +927,7 @@ class LLVM_ABI MachineFunction {
 
   /// Run the current MachineFunction through the machine code verifier, useful
   /// for debugger use.
-  /// TODO: Add the param LiveStks
+  /// TODO: Add the param for LiveStacks analysis.
   /// \returns true if no problems were found.
   bool verify(LiveIntervals *LiveInts, SlotIndexes *Indexes,
               const char *Banner = nullptr, raw_ostream *OS = nullptr,

llvm/include/llvm/Passes/MachinePassRegistry.def

@@ -196,7 +196,7 @@ MACHINE_FUNCTION_PASS_WITH_PARAMS(
     "filter=reg-filter;no-clear-vregs")
 
 MACHINE_FUNCTION_PASS_WITH_PARAMS(
-    "regallocgreedy", "RAGreedyPass",
+    "greedy", "RAGreedyPass",
     [](RAGreedyPass::Options Opts) { return RAGreedyPass(Opts); },
     [PB = this](StringRef Params) {
       // TODO: parseRegAllocGreedyFilterFunc(*PB, Params);

llvm/lib/CodeGen/RegAllocGreedy.cpp

@@ -242,8 +242,6 @@ PreservedAnalyses RAGreedyPass::run(MachineFunction &MF,
   PA.preserve<SlotIndexesAnalysis>();
   PA.preserve<LiveDebugVariablesAnalysis>();
   PA.preserve<LiveStacksAnalysis>();
-  PA.preserve<MachineDominatorTreeAnalysis>();
-  PA.preserve<MachineLoopAnalysis>();
   PA.preserve<VirtRegMapAnalysis>();
   PA.preserve<LiveRegMatrixAnalysis>();
   return PA;
@@ -269,7 +267,7 @@ bool RAGreedyLegacy::runOnMachineFunction(MachineFunction &MF) {
       &getAnalysis<SpillPlacementWrapperLegacy>().getResult();
   Analyses.DebugVars = &getAnalysis<LiveDebugVariablesWrapperLegacy>().getLDV();
   Analyses.EvictProvider =
-      getAnalysis<RegAllocEvictionAdvisorAnalysisLegacy>().getProvider().get();
+      &getAnalysis<RegAllocEvictionAdvisorAnalysisLegacy>().getProvider();
   Analyses.PriorityProvider =
       &getAnalysis<RegAllocPriorityAdvisorAnalysisLegacy>().getProvider();