Add a comment.

kazutakahirata · kazutakahirata · commit 3d764e7b1c84 · 2025-08-21T09:02:29.000-07:00
diff --git a/llvm/unittests/ADT/DenseMapTest.cpp b/llvm/unittests/ADT/DenseMapTest.cpp
@@ -387,6 +387,9 @@ TYPED_TEST(DenseMapTest, ConstIteratorTest) {
   EXPECT_TRUE(cit == cit2);
 }
 
+// TYPED_TEST below cycles through different types.  We define UniversalSmallSet
+// here so that we'll use SmallSet or SmallPtrSet depending on whether the
+// element type is a pointer.
 template <typename T, unsigned N>
 using UniversalSmallSet =
     std::conditional_t<std::is_pointer_v<T>, SmallPtrSet<T, N>, SmallSet<T, N>>;

Original file line number	Diff line number	Diff line change
`@@ -387,6 +387,9 @@ TYPED_TEST(DenseMapTest, ConstIteratorTest) {`
`387`	`387`	`EXPECT_TRUE(cit == cit2);`
`388`	`388`	`}`
`389`	`389`
	`390`	`+// TYPED_TEST below cycles through different types. We define UniversalSmallSet`
	`391`	`+// here so that we'll use SmallSet or SmallPtrSet depending on whether the`
	`392`	`+// element type is a pointer.`
`390`	`393`	`template <typename T, unsigned N>`
`391`	`394`	`using UniversalSmallSet =`
`392`	`395`	`std::conditional_t<std::is_pointer_v<T>, SmallPtrSet<T, N>, SmallSet<T, N>>;`