[llvm] [ADT] BitVector: give `subsetOf(RHS)` name to `!test(RHS)` (NFC) (PR #170875)

[Jakub Kuderski via llvm-commits]

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@@ -835,26 +835,118 @@ TYPED_TEST(BitVectorTest, BinOps) {
   A.resize(65);
   EXPECT_FALSE(A.anyCommon(B));
   EXPECT_FALSE(B.anyCommon(B));
+  EXPECT_TRUE(A.subsetOf(B));
+  EXPECT_TRUE(B.subsetOf(A));
 
   B.resize(64);
   A.set(64);
   EXPECT_FALSE(A.anyCommon(B));
   EXPECT_FALSE(B.anyCommon(A));
+  EXPECT_FALSE(A.subsetOf(B));
+  EXPECT_TRUE(B.subsetOf(A));
 
   B.set(63);
   EXPECT_FALSE(A.anyCommon(B));
   EXPECT_FALSE(B.anyCommon(A));
+  EXPECT_FALSE(A.subsetOf(B));
+  EXPECT_FALSE(B.subsetOf(A));
 
   A.set(63);
   EXPECT_TRUE(A.anyCommon(B));
   EXPECT_TRUE(B.anyCommon(A));
+  EXPECT_FALSE(A.subsetOf(B));
+  EXPECT_TRUE(B.subsetOf(A));
 
   B.resize(70);
   B.set(64);
   B.reset(63);
   A.resize(64);
   EXPECT_FALSE(A.anyCommon(B));
   EXPECT_FALSE(B.anyCommon(A));
+  EXPECT_FALSE(A.subsetOf(B));
+  EXPECT_FALSE(B.subsetOf(A));
+
+  B.set(63);
+  B.reset(64);
+  EXPECT_TRUE(A.anyCommon(B));
+  EXPECT_TRUE(B.anyCommon(A));
+  EXPECT_TRUE(A.subsetOf(B));
+  EXPECT_TRUE(B.subsetOf(A));
+}
+
+template <typename VecType>
+static inline VecType createBitVectorFromBits(uint32_t Size,
+                                              const std::vector<int> &SetBits) {
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kuhar wrote:

nit: why not initializer_list?

https://github.com/llvm/llvm-project/pull/170875