Use {DenseSet,SetVector,SmallPtrSet}::contains (NFC)

clang/lib/AST/ASTContext.cpp

@@ -9272,7 +9272,7 @@ void getIntersectionOfProtocols(ASTContext &Context,
   // Remove any implied protocols from the list of inherited protocols.
   if (!ImpliedProtocols.empty()) {
     llvm::erase_if(IntersectionSet, [&](ObjCProtocolDecl *proto) -> bool {
-      return ImpliedProtocols.count(proto) > 0;
+      return ImpliedProtocols.contains(proto);
     });
   }
 

clang/lib/CodeGen/CGOpenMPRuntime.cpp

@@ -12788,7 +12788,7 @@ void CGOpenMPRuntime::checkAndEmitSharedLastprivateConditional(
   const CapturedStmt *CS = D.getCapturedStmt(CaptureRegions.back());
   for (const auto &Pair : It->DeclToUniqueName) {
     const auto *VD = cast<VarDecl>(Pair.first->getCanonicalDecl());
-    if (!CS->capturesVariable(VD) || IgnoredDecls.count(VD) > 0)
+    if (!CS->capturesVariable(VD) || IgnoredDecls.contains(VD))
       continue;
     auto I = LPCI->getSecond().find(Pair.first);
     assert(I != LPCI->getSecond().end() &&

clang/lib/Frontend/CompilerInstance.cpp

@@ -1154,12 +1154,12 @@ compileModuleImpl(CompilerInstance &ImportingInstance, SourceLocation ImportLoc,
   // Remove any macro definitions that are explicitly ignored by the module.
   // They aren't supposed to affect how the module is built anyway.
   HeaderSearchOptions &HSOpts = Invocation->getHeaderSearchOpts();
-  llvm::erase_if(
-      PPOpts.Macros, [&HSOpts](const std::pair<std::string, bool> &def) {
-        StringRef MacroDef = def.first;
-        return HSOpts.ModulesIgnoreMacros.count(
-                   llvm::CachedHashString(MacroDef.split('=').first)) > 0;
-      });
+  llvm::erase_if(PPOpts.Macros,
+                 [&HSOpts](const std::pair<std::string, bool> &def) {
+                   StringRef MacroDef = def.first;
+                   return HSOpts.ModulesIgnoreMacros.contains(
+                       llvm::CachedHashString(MacroDef.split('=').first));
+                 });
 
   // If the original compiler invocation had -fmodule-name, pass it through.
   Invocation->getLangOpts()->ModuleName =

lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp

@@ -293,7 +293,7 @@ public:
 
     NamedDecl *to_named_decl = dyn_cast<NamedDecl>(to);
     // Check if we already completed this type.
-    if (m_decls_already_completed.count(to_named_decl) != 0)
+    if (m_decls_already_completed.contains(to_named_decl))
       return;
     // Queue this type to be completed.
     m_decls_to_complete.insert(to_named_decl);

lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp

@@ -4647,7 +4647,7 @@ void ObjectFileMachO::ParseSymtab(Symtab &symtab) {
 
   // Add symbols from the trie to the symbol table.
   for (auto &e : external_sym_trie_entries) {
-    if (symbols_added.find(e.entry.address) != symbols_added.end())
+    if (symbols_added.contains(e.entry.address))
       continue;
 
     // Find the section that this trie address is in, use that to annotate

lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp

@@ -874,7 +874,7 @@ void NativeProcessLinux::MonitorSignal(const siginfo_t &info,
 
   // Check if debugger should stop at this signal or just ignore it and resume
   // the inferior.
-  if (m_signals_to_ignore.find(signo) != m_signals_to_ignore.end()) {
+  if (m_signals_to_ignore.contains(signo)) {
      ResumeThread(thread, thread.GetState(), signo);
      return;
   }

llvm/lib/Transforms/Vectorize/LoopVectorize.cpp

@@ -2963,7 +2963,7 @@ void InnerLoopVectorizer::scalarizeInstruction(Instruction *Instr,
   // poison-generating flags (nuw/nsw, exact, inbounds, etc.). The scalarized
   // instruction could feed a poison value to the base address of the widen
   // load/store.
-  if (State.MayGeneratePoisonRecipes.count(RepRecipe) > 0)
+  if (State.MayGeneratePoisonRecipes.contains(RepRecipe))
     Cloned->dropPoisonGeneratingFlags();
 
   State.Builder.SetInsertPoint(Builder.GetInsertBlock(),
@@ -9533,7 +9533,7 @@ void VPWidenRecipe::execute(VPTransformState &State) {
         // exact, etc.). The control flow has been linearized and the
         // instruction is no longer guarded by the predicate, which could make
         // the flag properties to no longer hold.
-        if (State.MayGeneratePoisonRecipes.count(this) > 0)
+        if (State.MayGeneratePoisonRecipes.contains(this))
           VecOp->dropPoisonGeneratingFlags();
       }
 

polly/lib/Support/SCEVValidator.cpp

@@ -472,7 +472,7 @@ public:
         // are strictly not necessary by tracking the invariant load as a
         // scalar.
         LoadInst *LI = dyn_cast<LoadInst>(Inst);
-        if (LI && ILS.count(LI) > 0)
+        if (LI && ILS.contains(LI))
           return false;
       }
 

polly/lib/Transform/ScopInliner.cpp

@@ -84,7 +84,7 @@ public:
     ScopDetection &SD = FAM.getResult<ScopAnalysis>(*F);
 
     const bool HasScopAsTopLevelRegion =
-        SD.ValidRegions.count(RI.getTopLevelRegion()) > 0;
+        SD.ValidRegions.contains(RI.getTopLevelRegion());
 
     bool Changed = false;
     if (HasScopAsTopLevelRegion) {