================
@@ -0,0 +1,168 @@
+//===--- UseStdMinMaxCheck.cpp - clang-tidy 
-------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM 
Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "UseStdMinMaxCheck.h"
+#include "../utils/ASTUtils.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "clang/Lex/Preprocessor.h"
+
+using namespace clang::ast_matchers;
+
+namespace clang::tidy::readability {
+
+static const llvm::StringRef AlgorithmHeader("<algorithm>");
+
+static bool minCondition(const BinaryOperator::Opcode Op, const Expr *CondLhs,
+                         const Expr *CondRhs, const Expr *AssignLhs,
+                         const Expr *AssignRhs, const ASTContext &Context) {
+  if ((Op == BO_LT || Op == BO_LE) &&
+      (tidy::utils::areStatementsIdentical(CondLhs, AssignRhs, Context) &&
+       tidy::utils::areStatementsIdentical(CondRhs, AssignLhs, Context)))
+    return true;
+
+  if ((Op == BO_GT || Op == BO_GE) &&
+      (tidy::utils::areStatementsIdentical(CondLhs, AssignLhs, Context) &&
+       tidy::utils::areStatementsIdentical(CondRhs, AssignRhs, Context)))
+    return true;
+
+  return false;
+}
+
+static bool maxCondition(const BinaryOperator::Opcode Op, const Expr *CondLhs,
+                         const Expr *CondRhs, const Expr *AssignLhs,
+                         const Expr *AssignRhs, const ASTContext &Context) {
+  if ((Op == BO_LT || Op == BO_LE) &&
+      (tidy::utils::areStatementsIdentical(CondLhs, AssignLhs, Context) &&
+       tidy::utils::areStatementsIdentical(CondRhs, AssignRhs, Context)))
+    return true;
+
+  if ((Op == BO_GT || Op == BO_GE) &&
+      (tidy::utils::areStatementsIdentical(CondLhs, AssignRhs, Context) &&
+       tidy::utils::areStatementsIdentical(CondRhs, AssignLhs, Context)))
+    return true;
+
+  return false;
+}
+
+static std::string createReplacement(const Expr *CondLhs, const Expr *CondRhs,
+                                     const Expr *AssignLhs,
+                                     const SourceManager &Source,
+                                     const LangOptions &LO,
+                                     StringRef FunctionName,
+                                     const BinaryOperator *BO) {
+  const llvm::StringRef CondLhsStr = Lexer::getSourceText(
+      Source.getExpansionRange(CondLhs->getSourceRange()), Source, LO);
+  const llvm::StringRef CondRhsStr = Lexer::getSourceText(
+      Source.getExpansionRange(CondRhs->getSourceRange()), Source, LO);
+  const llvm::StringRef AssignLhsStr = Lexer::getSourceText(
+      Source.getExpansionRange(AssignLhs->getSourceRange()), Source, LO);
+
+  clang::QualType GlobalImplicitCastType;
+  if (CondLhs->getType()
+          .getCanonicalType()
+          .getNonReferenceType()
+          .getUnqualifiedType() != CondRhs->getType()
+                                       .getCanonicalType()
+                                       .getNonReferenceType()
+                                       .getUnqualifiedType()) {
----------------
PiotrZSL wrote:

assign those 2 binary operator types to local variables, to make this shorter.

https://github.com/llvm/llvm-project/pull/77816
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