Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/clang-tools-extra/clang-tidy/cert/FloatLoopCounter.cpp

@@ -0,0 +1,35 @@
+//===--- FloatLoopCounter.cpp - clang-tidy---------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "FloatLoopCounter.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+
+using namespace clang::ast_matchers;
+
+namespace clang {
+namespace tidy {
+namespace cert {
+
+void FloatLoopCounter::registerMatchers(MatchFinder *Finder) {
+  Finder->addMatcher(
+      forStmt(hasIncrement(expr(hasType(realFloatingPointType())))).bind("for"),
+      this);
+}
+
+void FloatLoopCounter::check(const MatchFinder::MatchResult &Result) {
+  const auto *FS = Result.Nodes.getNodeAs<ForStmt>("for");
+
+  diag(FS->getInc()->getExprLoc(), "loop induction expression should not have "
+                                   "floating-point type");
+}
+
+} // namespace cert
+} // namespace tidy
+} // namespace clang