diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -321,6 +321,8 @@
     } else if (isLambdaParameterList(&OpeningParen)) {
       // This is a parameter list of a lambda expression.
       Contexts.back().IsExpression = false;
+    } else if (OpeningParen.is(TT_RequiresExpressionLParen)) {
+      Contexts.back().IsExpression = false;
     } else if (Line.InPPDirective &&
                (!OpeningParen.Previous ||
                 !OpeningParen.Previous->is(tok::identifier))) {
diff --git a/clang/unittests/Format/TokenAnnotatorTest.cpp b/clang/unittests/Format/TokenAnnotatorTest.cpp
--- a/clang/unittests/Format/TokenAnnotatorTest.cpp
+++ b/clang/unittests/Format/TokenAnnotatorTest.cpp
@@ -711,19 +711,50 @@
   ASSERT_EQ(Tokens.size(), 15u) << Tokens;
   EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression);
   EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen);
+  EXPECT_TOKEN(Tokens[6], tok::star, TT_PointerOrReference);
   EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace);
 
   Tokens = annotate("foo(requires(T const* volatile t) {});");
   ASSERT_EQ(Tokens.size(), 15u) << Tokens;
   EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression);
   EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen);
+  EXPECT_TOKEN(Tokens[6], tok::star, TT_PointerOrReference);
   EXPECT_TOKEN(Tokens[10], tok::l_brace, TT_RequiresExpressionLBrace);
 
+  Tokens = annotate("foo(requires(T& t) {});");
+  ASSERT_EQ(Tokens.size(), 13u) << Tokens;
+  EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression);
+  EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen);
+  EXPECT_TOKEN(Tokens[5], tok::amp, TT_PointerOrReference);
+  EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace);
+
+  Tokens = annotate("foo(requires(T&& t) {});");
+  ASSERT_EQ(Tokens.size(), 13u) << Tokens;
+  EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression);
+  EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen);
+  EXPECT_TOKEN(Tokens[5], tok::ampamp, TT_PointerOrReference);
+  EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_RequiresExpressionLBrace);
+
+  Tokens = annotate("bool foo = requires(T& t) {};");
+  ASSERT_EQ(Tokens.size(), 13u) << Tokens;
+  EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression);
+  EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen);
+  EXPECT_TOKEN(Tokens[6], tok::amp, TT_PointerOrReference);
+  EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_RequiresExpressionLBrace);
+
+  Tokens = annotate("bool foo = requires(T&& t) {};");
+  ASSERT_EQ(Tokens.size(), 13u) << Tokens;
+  EXPECT_TOKEN(Tokens[3], tok::kw_requires, TT_RequiresExpression);
+  EXPECT_TOKEN(Tokens[4], tok::l_paren, TT_RequiresExpressionLParen);
+  EXPECT_TOKEN(Tokens[6], tok::ampamp, TT_PointerOrReference);
+  EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_RequiresExpressionLBrace);
+
   Tokens =
       annotate("foo(requires(const typename Outer<T>::Inner * const t) {});");
   ASSERT_EQ(Tokens.size(), 21u) << Tokens;
   EXPECT_TOKEN(Tokens[2], tok::kw_requires, TT_RequiresExpression);
   EXPECT_TOKEN(Tokens[3], tok::l_paren, TT_RequiresExpressionLParen);
+  EXPECT_TOKEN(Tokens[12], tok::star, TT_PointerOrReference);
   EXPECT_TOKEN(Tokens[16], tok::l_brace, TT_RequiresExpressionLBrace);
 
   Tokens = annotate("template <typename T>\n"