Update tests and invalidate method

Author: optimisan

llvm/include/llvm/CodeGen/RegisterUsageInfo.h

@@ -51,6 +51,9 @@ class PhysicalRegisterUsageInfo {
 
   void print(raw_ostream &OS, const Module *M = nullptr) const;
 
+  bool invalidate(Module &M, const PreservedAnalyses &PA,
+                  ModuleAnalysisManager::Invalidator &Inv);
+
 private:
   /// A Dense map from Function * to RegMask.
   /// In RegMask 0 means register used (clobbered) by function.

llvm/lib/CodeGen/RegisterUsageInfo.cpp

@@ -100,6 +100,13 @@ void PhysicalRegisterUsageInfo::print(raw_ostream &OS, const Module *M) const {
   }
 }
 
+bool PhysicalRegisterUsageInfo::invalidate(
+    Module &M, const PreservedAnalyses &PA,
+    ModuleAnalysisManager::Invalidator &) {
+  auto PAC = PA.getChecker<PhysicalRegisterUsageInfoAnalysis>();
+  return !PAC.preservedWhenStateless();
+}
+
 AnalysisKey PhysicalRegisterUsageInfoAnalysis::Key;
 PhysicalRegisterUsageInfo
 PhysicalRegisterUsageInfoAnalysis::run(Module &M, ModuleAnalysisManager &) {
@@ -114,4 +121,4 @@ PhysicalRegisterUsageInfoPrinterPass::run(Module &M,
   auto *PRUI = &AM.getResult<PhysicalRegisterUsageInfoAnalysis>(M);
   PRUI->print(OS, &M);
   return PreservedAnalyses::all();
-}
+}