1 files changed, 269 insertions, 0 deletions
diff --git a/test/OpenMP/parallel_for_linear_messages.cpp b/test/OpenMP/parallel_for_linear_messages.cpp
new file mode 100644
index 000000000000..7272aada92a0
--- /dev/null
+++ b/test/OpenMP/parallel_for_linear_messages.cpp
@@ -0,0 +1,269 @@
+// RUN: %clang_cc1 -verify -fopenmp %s
+
+namespace X {
+int x;
+};
+
+struct B {
+  static int ib; // expected-note {{'B::ib' declared here}}
+  static int bfoo() { return 8; }
+};
+
+int bfoo() { return 4; }
+
+int z;
+const int C1 = 1;
+const int C2 = 2;
+void test_linear_colons() {
+  int B = 0;
+#pragma omp parallel for linear(B : bfoo())
+  for (int i = 0; i < 10; ++i)
+    ;
+// expected-error@+1 {{unexpected ':' in nested name specifier; did you mean '::'}}
+#pragma omp parallel for linear(B::ib : B : bfoo())
+  for (int i = 0; i < 10; ++i)
+    ;
+// expected-error@+1 {{use of undeclared identifier 'ib'; did you mean 'B::ib'}}
+#pragma omp parallel for linear(B : ib)
+  for (int i = 0; i < 10; ++i)
+    ;
+// expected-error@+1 {{unexpected ':' in nested name specifier; did you mean '::'?}}
+#pragma omp parallel for linear(z : B : ib)
+  for (int i = 0; i < 10; ++i)
+    ;
+#pragma omp parallel for linear(B : B::bfoo())
+  for (int i = 0; i < 10; ++i)
+    ;
+#pragma omp parallel for linear(X::x : ::z)
+  for (int i = 0; i < 10; ++i)
+    ;
+#pragma omp parallel for linear(B, ::z, X::x)
+  for (int i = 0; i < 10; ++i)
+    ;
+#pragma omp parallel for linear(::z)
+  for (int i = 0; i < 10; ++i)
+    ;
+// expected-error@+1 {{expected variable name}}
+#pragma omp parallel for linear(B::bfoo())
+  for (int i = 0; i < 10; ++i)
+    ;
+#pragma omp parallel for linear(B::ib, B : C1 + C2)
+  for (int i = 0; i < 10; ++i)
+    ;
+}
+
+template <int L, class T, class N>
+T test_template(T *arr, N num) {
+  N i;
+  T sum = (T)0;
+  T ind2 = -num * L; // expected-note {{'ind2' defined here}}
+// expected-error@+1 {{argument of a linear clause should be of integral or pointer type}}
+#pragma omp parallel for linear(ind2 : L)
+  for (i = 0; i < num; ++i) {
+    T cur = arr[(int)ind2];
+    ind2 += L;
+    sum += cur;
+  }
+  return T();
+}
+
+template <int LEN>
+int test_warn() {
+  int ind2 = 0;
+// expected-warning@+1 {{zero linear step (ind2 should probably be const)}}
+#pragma omp parallel for linear(ind2 : LEN)
+  for (int i = 0; i < 100; i++) {
+    ind2 += LEN;
+  }
+  return ind2;
+}
+
+struct S1; // expected-note 2 {{declared here}} expected-note 2 {{forward declaration of 'S1'}}
+extern S1 a;
+class S2 {
+  mutable int a;
+
+public:
+  S2() : a(0) {}
+};
+const S2 b; // expected-note 2 {{'b' defined here}}
+const S2 ba[5];
+class S3 {
+  int a;
+
+public:
+  S3() : a(0) {}
+};
+const S3 ca[5];
+class S4 {
+  int a;
+  S4();
+
+public:
+  S4(int v) : a(v) {}
+};
+class S5 {
+  int a;
+  S5() : a(0) {}
+
+public:
+  S5(int v) : a(v) {}
+};
+
+S3 h;
+#pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
+
+template <class I, class C>
+int foomain(I argc, C **argv) {
+  I e(4);
+  I g(5);
+  int i;
+  int &j = i;
+#pragma omp parallel for linear // expected-error {{expected '(' after 'linear'}}
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear() // expected-error {{expected expression}}
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear(argc : 5)
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear(S1) // expected-error {{'S1' does not refer to a value}}
+  for (int k = 0; k < argc; ++k)
+    ++k;
+// expected-error@+2 {{linear variable with incomplete type 'S1'}}
+// expected-error@+1 {{const-qualified variable cannot be linear}}
+#pragma omp parallel for linear(a, b : B::ib)
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear(argv[1]) // expected-error {{expected variable name}}
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear(e, g)
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear(h) // expected-error {{threadprivate or thread local variable cannot be linear}}
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear(i)
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel
+  {
+    int v = 0;
+    int i;
+#pragma omp parallel for linear(v : i)
+    for (int k = 0; k < argc; ++k) {
+      i = k;
+      v += i;
+    }
+  }
+#pragma omp parallel for linear(j)
+  for (int k = 0; k < argc; ++k)
+    ++k;
+  int v = 0;
+#pragma omp parallel for linear(v : j)
+  for (int k = 0; k < argc; ++k) {
+    ++k;
+    v += j;
+  }
+#pragma omp parallel for linear(i)
+  for (int k = 0; k < argc; ++k)
+    ++k;
+  return 0;
+}
+
+namespace A {
+double x;
+#pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
+}
+namespace C {
+using A::x;
+}
+
+int main(int argc, char **argv) {
+  double darr[100];
+  // expected-note@+1 {{in instantiation of function template specialization 'test_template<-4, double, int>' requested here}}
+  test_template<-4>(darr, 4);
+  // expected-note@+1 {{in instantiation of function template specialization 'test_warn<0>' requested here}}
+  test_warn<0>();
+
+  S4 e(4); // expected-note {{'e' defined here}}
+  S5 g(5); // expected-note {{'g' defined here}}
+  int i;
+  int &j = i;
+#pragma omp parallel for linear // expected-error {{expected '(' after 'linear'}}
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear() // expected-error {{expected expression}}
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear(argc)
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear(S1) // expected-error {{'S1' does not refer to a value}}
+  for (int k = 0; k < argc; ++k)
+    ++k;
+// expected-error@+2 {{linear variable with incomplete type 'S1'}}
+// expected-error@+1 {{const-qualified variable cannot be linear}}
+#pragma omp parallel for linear(a, b)
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear(argv[1]) // expected-error {{expected variable name}}
+  for (int k = 0; k < argc; ++k)
+    ++k;
+// expected-error@+2 {{argument of a linear clause should be of integral or pointer type, not 'S4'}}
+// expected-error@+1 {{argument of a linear clause should be of integral or pointer type, not 'S5'}}
+#pragma omp parallel for linear(e, g)
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear(h, C::x) // expected-error 2 {{threadprivate or thread local variable cannot be linear}}
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel
+  {
+    int i;
+#pragma omp parallel for linear(i)
+    for (int k = 0; k < argc; ++k)
+      ++k;
+#pragma omp parallel for linear(i : 4)
+    for (int k = 0; k < argc; ++k) {
+      ++k;
+      i += 4;
+    }
+  }
+#pragma omp parallel for linear(j)
+  for (int k = 0; k < argc; ++k)
+    ++k;
+#pragma omp parallel for linear(i)
+  for (int k = 0; k < argc; ++k)
+    ++k;
+
+  foomain<int, char>(argc, argv);
+  return 0;
+}
+