Pre-commit test case for D136784

[eopXD]

Summary

This is a pre-commit for the fix in D136784.

[SjoerdMeijer]

Looks like a good set of extra tests to me.

[eopXD]

Update to latest main. (Triggering CI again)

clang/test/Parser/pragma-loop.cpp

/* expected-error {{incompatible directives 'unroll(full)' and 'unroll_count(4)'}} */ #pragma clang loop unroll_count(4)
   }
 
 #pragma clang loop interleave(enable)
 /* expected-error {{expected statement}} */ }
 
 void foo(void) {
 #pragma clang loop vectorize_predicate(enable)
 /* expected-error {{expected statement}} */ }
+
+void foo(int *List, int Length) {
+  int i;
+#pragma clang loop vectorize(enable, extra)
+/* expected-warning {{extra tokens at end of '#pragma clang loop loop' - ignored}}*/ while (i-6 < Length) {
+    List[i] = i;
+  }
+
+#pragma clang loop interleave(enable, extra)
+/* expected-warning {{extra tokens at end of '#pragma clang loop loop' - ignored}}*/ while (i-6 < Length) {
+    List[i] = i;
+  }
+
+#pragma clang loop unroll(enable, extra)
+/* expected-warning {{extra tokens at end of '#pragma clang loop loop' - ignored}}*/ while (i-6 < Length) {
+    List[i] = i;
+  }
+
+#pragma clang loop vectorize_predicate(enable, extra)
+/* expected-warning {{extra tokens at end of '#pragma clang loop loop' - ignored}}*/ while (i-6 < Length) {
+    List[i] = i;
+  }
+
+#pragma clang loop pipeline(disable, extra)
+/* expected-warning {{extra tokens at end of '#pragma clang loop loop' - ignored}}*/ while (i-6 < Length) {
+    List[i] = i;
+  }
+
+/* expected-warning {{extra tokens at end of '#pragma clang loop loop' - ignored}}*/ #pragma clang loop vectorize_width(2, scalable, extra)
+/* expected-warning {{extra tokens at end of '#pragma clang loop loop' - ignored}}*/ #pragma clang loop interleave_count(2, extra)
+/* expected-warning {{extra tokens at end of '#pragma clang loop loop' - ignored}}*/ #pragma clang loop unroll_count(2, extra)
+/* expected-warning {{extra tokens at end of '#pragma clang loop loop' - ignored}}*/ #pragma clang loop pipeline_initiation_interval(2, extra)
+  while (i-6 < Length) {
+    List[i] = i;
+  }
+}