[clang] [Clang][Unittest] Support for `target` update directive and `from` clause in clang unittests (PR #150580)

[Shilei Tian via cfe-commits]

================
@@ -4734,6 +4734,65 @@ void x() {
   EXPECT_TRUE(matchesWithOpenMP(Source8, Matcher));
 }
 
+TEST_P(ASTMatchersTest, OMPTargetUpdateDirective_IsStandaloneDirective) {
+  auto Matcher = ompTargetUpdateDirective(isStandaloneDirective());
+
+  StringRef Source0 = R"(
+    void foo() {
+      int arr[8];
+      #pragma omp target update from(arr[0:8:2])
+      ;
+    }
+  )";
+  EXPECT_TRUE(matchesWithOpenMP(Source0, Matcher));
+}
+
+TEST_P(ASTMatchersTest, OMPTargetUpdateDirective_HasStructuredBlock) {
+  StringRef Source0 = R"(
+    void foo() {
+      int arr[8];
+      #pragma omp target update from(arr[0:8:2])
+      ;
+    }
+  )";
+  EXPECT_TRUE(notMatchesWithOpenMP(
+      Source0, ompTargetUpdateDirective(hasStructuredBlock(nullStmt()))));
+}
+
+TEST_P(ASTMatchersTest, OMPTargetUpdateDirective_HasClause) {
+  auto Matcher = ompTargetUpdateDirective(hasAnyClause(anything()));
+
+  StringRef Source0 = R"(
+    void foo() {
+      int arr[8];
+      #pragma omp target update from(arr[0:8:2])
----------------
shiltian wrote:

same here

https://github.com/llvm/llvm-project/pull/150580
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