[OPENMP] Initial support for 'sections' directive.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211685 91177308-0d34-0410-b5e6-96231b3b80d8

7 files changed, 1662 insertions, 0 deletions

diff --git a/test/OpenMP/nesting_of_regions.cpp b/test/OpenMP/nesting_of_regions.cpp
index a1f416f378..dc8a00257a 100644
--- a/test/OpenMP/nesting_of_regions.cpp
+++ b/test/OpenMP/nesting_of_regions.cpp
@@ -1,5 +1,7 @@
 // RUN: %clang_cc1 -fsyntax-only -fopenmp=libiomp5 -verify %s
 
+void bar();
+
 template <class T>
 void foo() {
 #pragma omp parallel
@@ -8,6 +10,11 @@ void foo() {
 #pragma omp parallel
 #pragma omp simd
   for (int i = 0; i < 10; ++i);
+#pragma omp parallel
+#pragma omp sections
+  {
+    bar();
+  }
 #pragma omp simd
   for (int i = 0; i < 10; ++i) {
 #pragma omp for // expected-error {{OpenMP constructs may not be nested inside a simd region}}
@@ -23,6 +30,13 @@ void foo() {
 #pragma omp parallel // expected-error {{OpenMP constructs may not be nested inside a simd region}}
   for (int i = 0; i < 10; ++i);
   }
+#pragma omp simd
+  for (int i = 0; i < 10; ++i) {
+#pragma omp sections // expected-error {{OpenMP constructs may not be nested inside a simd region}}
+    {
+      bar();
+    }
+  }
 #pragma omp for
   for (int i = 0; i < 10; ++i) {
 #pragma omp for // expected-error {{region cannot be closely nested inside 'for' region; perhaps you forget to enclose 'omp for' directive into a parallel region?}}
@@ -38,6 +52,35 @@ void foo() {
 #pragma omp parallel
   for (int i = 0; i < 10; ++i);
   }
+#pragma omp for
+  for (int i = 0; i < 10; ++i) {
+#pragma omp sections // expected-error {{region cannot be closely nested inside 'for' region; perhaps you forget to enclose 'omp sections' directive into a parallel region?}}
+    {
+      bar();
+    }
+  }
+#pragma omp sections
+  {
+#pragma omp for // expected-error {{region cannot be closely nested inside 'sections' region; perhaps you forget to enclose 'omp for' directive into a parallel region?}}
+  for (int i = 0; i < 10; ++i);
+  }
+#pragma omp sections
+  {
+#pragma omp simd
+  for (int i = 0; i < 10; ++i);
+  }
+#pragma omp sections
+  {
+#pragma omp parallel
+  for (int i = 0; i < 10; ++i);
+  }
+#pragma omp sections
+  {
+#pragma omp sections // expected-error {{region cannot be closely nested inside 'sections' region; perhaps you forget to enclose 'omp sections' directive into a parallel region?}}
+    {
+      bar();
+    }
+  }
 }
 
 void foo() {
@@ -47,6 +90,11 @@ void foo() {
 #pragma omp parallel
 #pragma omp simd
   for (int i = 0; i < 10; ++i);
+#pragma omp parallel
+#pragma omp sections
+  {
+    bar();
+  }
 #pragma omp simd
   for (int i = 0; i < 10; ++i) {
 #pragma omp for // expected-error {{OpenMP constructs may not be nested inside a simd region}}
@@ -62,6 +110,13 @@ void foo() {
 #pragma omp parallel // expected-error {{OpenMP constructs may not be nested inside a simd region}}
   for (int i = 0; i < 10; ++i);
   }
+#pragma omp simd
+  for (int i = 0; i < 10; ++i) {
+#pragma omp sections // expected-error {{OpenMP constructs may not be nested inside a simd region}}
+    {
+      bar();
+    }
+  }
 #pragma omp for
   for (int i = 0; i < 10; ++i) {
 #pragma omp for // expected-error {{region cannot be closely nested inside 'for' region; perhaps you forget to enclose 'omp for' directive into a parallel region?}}
@@ -77,6 +132,35 @@ void foo() {
 #pragma omp parallel
   for (int i = 0; i < 10; ++i);
   }
+#pragma omp for
+  for (int i = 0; i < 10; ++i) {
+#pragma omp sections // expected-error {{region cannot be closely nested inside 'for' region; perhaps you forget to enclose 'omp sections' directive into a parallel region?}}
+    {
+      bar();
+    }
+  }
+#pragma omp sections
+  {
+#pragma omp for // expected-error {{region cannot be closely nested inside 'sections' region; perhaps you forget to enclose 'omp for' directive into a parallel region?}}
+  for (int i = 0; i < 10; ++i);
+  }
+#pragma omp sections
+  {
+#pragma omp simd
+  for (int i = 0; i < 10; ++i);
+  }
+#pragma omp sections
+  {
+#pragma omp parallel
+  for (int i = 0; i < 10; ++i);
+  }
+#pragma omp sections
+  {
+#pragma omp sections // expected-error {{region cannot be closely nested inside 'sections' region; perhaps you forget to enclose 'omp sections' directive into a parallel region?}}
+    {
+      bar();
+    }
+  }
   return foo<int>();
 }
 
diff --git a/test/OpenMP/sections_ast_print.cpp b/test/OpenMP/sections_ast_print.cpp
new file mode 100644
index 0000000000..56c1c3c988
--- /dev/null
+++ b/test/OpenMP/sections_ast_print.cpp
@@ -0,0 +1,46 @@
+// RUN: %clang_cc1 -verify -fopenmp=libiomp5 -ast-print %s | FileCheck %s
+// RUN: %clang_cc1 -fopenmp=libiomp5 -x c++ -std=c++11 -emit-pch -o %t %s
+// RUN: %clang_cc1 -fopenmp=libiomp5 -std=c++11 -include-pch %t -fsyntax-only -verify %s -ast-print | FileCheck %s
+// expected-no-diagnostics
+
+#ifndef HEADER
+#define HEADER
+
+void foo() {}
+
+template <class T, int N>
+T tmain(T argc) {
+  T b = argc, c, d, e, f, g;
+  static T a;
+// CHECK: static T a;
+#pragma omp parallel
+#pragma omp sections private(argc, b), firstprivate(c, d), lastprivate(d, f) reduction (-: g) nowait
+  {
+            foo();
+  }
+  // CHECK-NEXT: #pragma omp parallel
+  // CHECK-NEXT: #pragma omp sections private(argc,b) firstprivate(c,d) lastprivate(d,f) reduction(-: g) nowait
+  // CHECK-NEXT: {
+  // CHECK-NEXT: foo();
+  // CHECK-NEXT: }
+  return T();
+}
+
+int main(int argc, char **argv) {
+  int b = argc, c, d, e, f, g;
+  static int a;
+// CHECK: static int a;
+#pragma omp parallel
+#pragma omp sections private(argc, b), firstprivate(argv, c), lastprivate(d, f) reduction(+:g) nowait
+  {
+      foo();
+  }
+  // CHECK-NEXT: #pragma omp parallel
+  // CHECK-NEXT: #pragma omp sections private(argc,b) firstprivate(argv,c) lastprivate(d,f) reduction(+: g) nowait
+  // CHECK-NEXT: {
+  // CHECK-NEXT: foo();
+  // CHECK-NEXT: }
+  return (tmain<int, 5>(argc) + tmain<char, 1>(argv[0][0]));
+}
+
+#endif
diff --git a/test/OpenMP/sections_firstprivate_messages.cpp b/test/OpenMP/sections_firstprivate_messages.cpp
new file mode 100644
index 0000000000..b030ce549d
--- /dev/null
+++ b/test/OpenMP/sections_firstprivate_messages.cpp
@@ -0,0 +1,335 @@
+// RUN: %clang_cc1 -verify -fopenmp=libiomp5 %s
+
+void foo() {
+}
+
+bool foobool(int argc) {
+  return argc;
+}
+
+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) {}
+  S2(S2 &s2) : a(s2.a) {}
+  static float S2s;
+  static const float S2sc;
+};
+const float S2::S2sc = 0;
+const S2 b;
+const S2 ba[5];
+class S3 {
+  int a;
+  S3 &operator=(const S3 &s3);
+
+public:
+  S3() : a(0) {}
+  S3(S3 &s3) : a(s3.a) {}
+};
+const S3 c;
+const S3 ca[5];
+extern const int f;
+class S4 { // expected-note 2 {{'S4' declared here}}
+  int a;
+  S4();
+  S4(const S4 &s4);
+
+public:
+  S4(int v) : a(v) {}
+};
+class S5 { // expected-note 4 {{'S5' declared here}}
+  int a;
+  S5(const S5 &s5) : a(s5.a) {}
+
+public:
+  S5() : a(0) {}
+  S5(int v) : a(v) {}
+};
+class S6 {
+  int a;
+  S6() : a(0) {}
+
+public:
+  S6(const S6 &s6) : a(s6.a) {}
+  S6(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(int argc, char **argv) {
+  I e(4); // expected-note {{'e' defined here}}
+  C g(5); // expected-note 2 {{'g' defined here}}
+  int i;
+  int &j = i; // expected-note {{'j' defined here}}
+#pragma omp parallel
+#pragma omp sections firstprivate // expected-error {{expected '(' after 'firstprivate'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate() // expected-error {{expected expression}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(argc)
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(S1) // expected-error {{'S1' does not refer to a value}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(a, b) // expected-error {{firstprivate variable with incomplete type 'S1'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(argv[1]) // expected-error {{expected variable name}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(e, g) // expected-error 2 {{firstprivate variable must have an accessible, unambiguous copy constructor}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(h) // expected-error {{threadprivate or thread local variable cannot be firstprivate}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections linear(i) // expected-error {{unexpected OpenMP clause 'linear' in directive '#pragma omp sections'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+  {
+    int v = 0;
+    int i;                           // expected-note {{variable with automatic storage duration is predetermined as private; perhaps you forget to enclose 'omp sections' directive into a parallel or another task region?}}
+#pragma omp sections firstprivate(i) // expected-error {{private variable cannot be firstprivate}}
+    {
+      foo();
+    }
+    v += i;
+  }
+#pragma omp parallel shared(i)
+#pragma omp parallel private(i)
+#pragma omp sections firstprivate(j) // expected-error {{arguments of OpenMP clause 'firstprivate' cannot be of reference type}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(i)
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(g) firstprivate(g) // expected-error {{firstprivate variable must have an accessible, unambiguous copy constructor}}
+  {
+    foo();
+  }
+#pragma omp parallel private(i)      // expected-note {{defined as private}}
+#pragma omp sections firstprivate(i) // expected-error {{firstprivate variable must be shared}}
+  {
+    foo();
+  }
+#pragma omp parallel reduction(+ : i) // expected-note {{defined as reduction}}
+#pragma omp sections firstprivate(i)  // expected-error {{firstprivate variable must be shared}}
+  {
+    foo();
+  }
+  return 0;
+}
+
+int main(int argc, char **argv) {
+  const int d = 5;
+  const int da[5] = {0};
+  S4 e(4); // expected-note {{'e' defined here}}
+  S5 g(5); // expected-note 2 {{'g' defined here}}
+  S3 m;
+  S6 n(2);
+  int i;
+  int &j = i; // expected-note {{'j' defined here}}
+#pragma omp parallel
+#pragma omp sections firstprivate // expected-error {{expected '(' after 'firstprivate'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate() // expected-error {{expected expression}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(argc)
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(S1) // expected-error {{'S1' does not refer to a value}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(a, b, c, d, f) // expected-error {{firstprivate variable with incomplete type 'S1'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(argv[1]) // expected-error {{expected variable name}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(2 * 2) // expected-error {{expected variable name}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(ba) // OK
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(ca) // OK
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(da) // OK
+  {
+    foo();
+  }
+  int xa;
+#pragma omp parallel
+#pragma omp sections firstprivate(xa) // OK
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(S2::S2s) // OK
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(S2::S2sc) // OK
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections safelen(5) // expected-error {{unexpected OpenMP clause 'safelen' in directive '#pragma omp sections'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(e, g) // expected-error 2 {{firstprivate variable must have an accessible, unambiguous copy constructor}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(m) // OK
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(h) // expected-error {{threadprivate or thread local variable cannot be firstprivate}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections private(xa), firstprivate(xa) // expected-error {{private variable cannot be firstprivate}} expected-note {{defined as private}}
+  {
+    foo();
+  }
+#pragma omp parallel shared(xa)
+#pragma omp sections firstprivate(xa) // OK: may be firstprivate
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(j) // expected-error {{arguments of OpenMP clause 'firstprivate' cannot be of reference type}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(g) firstprivate(g) // expected-error {{firstprivate variable must have an accessible, unambiguous copy constructor}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(n) firstprivate(n) // OK
+  {
+    foo();
+  }
+#pragma omp parallel
+  {
+    int v = 0;
+    int i;                           // expected-note {{variable with automatic storage duration is predetermined as private; perhaps you forget to enclose 'omp sections' directive into a parallel or another task region?}}
+#pragma omp sections firstprivate(i) // expected-error {{private variable cannot be firstprivate}}
+    {
+      foo();
+    }
+    v += i;
+  }
+#pragma omp parallel private(i)      // expected-note {{defined as private}}
+#pragma omp sections firstprivate(i) // expected-error {{firstprivate variable must be shared}}
+  {
+    foo();
+  }
+#pragma omp parallel reduction(+ : i) // expected-note {{defined as reduction}}
+#pragma omp sections firstprivate(i)  // expected-error {{firstprivate variable must be shared}}
+  {
+    foo();
+  }
+
+  return foomain<S4, S5>(argc, argv); // expected-note {{in instantiation of function template specialization 'foomain<S4, S5>' requested here}}
+}
diff --git a/test/OpenMP/sections_lastprivate_messages.cpp b/test/OpenMP/sections_lastprivate_messages.cpp
new file mode 100644
index 0000000000..54c6005dce
--- /dev/null
+++ b/test/OpenMP/sections_lastprivate_messages.cpp
@@ -0,0 +1,309 @@
+// RUN: %clang_cc1 -verify -fopenmp=libiomp5 %s
+
+void foo() {
+}
+
+bool foobool(int argc) {
+  return argc;
+}
+
+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) {}
+  S2(S2 &s2) : a(s2.a) {}
+  static float S2s; // expected-note {{static data member is predetermined as shared}}
+  static const float S2sc;
+};
+const float S2::S2sc = 0; // expected-note {{static data member is predetermined as shared}}
+const S2 b;
+const S2 ba[5];
+class S3 { // expected-note 2 {{'S3' declared here}}
+  int a;
+  S3 &operator=(const S3 &s3);
+
+public:
+  S3() : a(0) {}
+  S3(S3 &s3) : a(s3.a) {}
+};
+const S3 c;         // expected-note {{global variable is predetermined as shared}}
+const S3 ca[5];     // expected-note {{global variable is predetermined as shared}}
+extern const int f; // expected-note {{global variable is predetermined as shared}}
+class S4 {          // expected-note 3 {{'S4' declared here}}
+  int a;
+  S4();
+  S4(const S4 &s4);
+
+public:
+  S4(int v) : a(v) {}
+};
+class S5 { // expected-note {{'S5' declared here}}
+  int a;
+  S5() : a(0) {}
+
+public:
+  S5(const S5 &s5) : a(s5.a) {}
+  S5(int v) : a(v) {}
+};
+class S6 {
+  int a;
+  S6() : a(0) {}
+
+public:
+  S6(const S6 &s6) : a(s6.a) {}
+  S6(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(int argc, char **argv) {
+  I e(4); // expected-note {{'e' defined here}}
+  I g(5); // expected-note {{'g' defined here}}
+  int i;
+  int &j = i; // expected-note {{'j' defined here}}
+#pragma omp parallel
+#pragma omp sections lastprivate // expected-error {{expected '(' after 'lastprivate'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate() // expected-error {{expected expression}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(argc)
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(S1) // expected-error {{'S1' does not refer to a value}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(a, b) // expected-error {{lastprivate variable with incomplete type 'S1'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(argv[1]) // expected-error {{expected variable name}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(e, g) // expected-error 2 {{lastprivate variable must have an accessible, unambiguous default constructor}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(h) // expected-error {{threadprivate or thread local variable cannot be lastprivate}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections linear(i) // expected-error {{unexpected OpenMP clause 'linear' in directive '#pragma omp sections'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+  {
+    int v = 0;
+    int i;                          // expected-note {{variable with automatic storage duration is predetermined as private; perhaps you forget to enclose 'omp sections' directive into a parallel or another task region?}}
+#pragma omp sections lastprivate(i) // expected-error {{lastprivate variable must be shared}}
+    {
+      foo();
+    }
+    v += i;
+  }
+#pragma omp parallel shared(i)
+#pragma omp parallel private(i)
+#pragma omp sections lastprivate(j) // expected-error {{arguments of OpenMP clause 'lastprivate' cannot be of reference type}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(i)
+  {
+    foo();
+  }
+  return 0;
+}
+
+int main(int argc, char **argv) {
+  const int d = 5;       // expected-note {{constant variable is predetermined as shared}}
+  const int da[5] = {0}; // expected-note {{constant variable is predetermined as shared}}
+  S4 e(4);               // expected-note {{'e' defined here}}
+  S5 g(5);               // expected-note {{'g' defined here}}
+  S3 m;                  // expected-note 2 {{'m' defined here}}
+  S6 n(2);
+  int i;
+  int &j = i; // expected-note {{'j' defined here}}
+#pragma omp parallel
+#pragma omp sections lastprivate // expected-error {{expected '(' after 'lastprivate'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate() // expected-error {{expected expression}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(argc)
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(S1) // expected-error {{'S1' does not refer to a value}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(a, b, c, d, f) // expected-error {{lastprivate variable with incomplete type 'S1'}} expected-error 3 {{shared variable cannot be lastprivate}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(argv[1]) // expected-error {{expected variable name}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(2 * 2) // expected-error {{expected variable name}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(ba)
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(ca) // expected-error {{shared variable cannot be lastprivate}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(da) // expected-error {{shared variable cannot be lastprivate}}
+  {
+    foo();
+  }
+  int xa;
+#pragma omp parallel
+#pragma omp sections lastprivate(xa) // OK
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(S2::S2s) // expected-error {{shared variable cannot be lastprivate}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(S2::S2sc) // expected-error {{shared variable cannot be lastprivate}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections safelen(5) // expected-error {{unexpected OpenMP clause 'safelen' in directive '#pragma omp sections'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(e, g) // expected-error 2 {{lastprivate variable must have an accessible, unambiguous default constructor}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(m) // expected-error {{lastprivate variable must have an accessible, unambiguous copy assignment operator}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(h) // expected-error {{threadprivate or thread local variable cannot be lastprivate}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections private(xa), lastprivate(xa) // expected-error {{private variable cannot be lastprivate}} expected-note {{defined as private}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(i)
+  {
+    foo();
+  }
+#pragma omp parallel private(xa)     // expected-note {{defined as private}}
+#pragma omp sections lastprivate(xa) // expected-error {{lastprivate variable must be shared}}
+  {
+    foo();
+  }
+#pragma omp parallel reduction(+ : xa) // expected-note {{defined as reduction}}
+#pragma omp sections lastprivate(xa)   // expected-error {{lastprivate variable must be shared}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(j) // expected-error {{arguments of OpenMP clause 'lastprivate' cannot be of reference type}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections firstprivate(m) lastprivate(m) // expected-error {{lastprivate variable must have an accessible, unambiguous copy assignment operator}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(n) firstprivate(n) // OK
+  {
+    foo();
+  }
+  return foomain<S4, S5>(argc, argv); // expected-note {{in instantiation of function template specialization 'foomain<S4, S5>' requested here}}
+}
diff --git a/test/OpenMP/sections_misc_messages.c b/test/OpenMP/sections_misc_messages.c
new file mode 100644
index 0000000000..e8aa5e28c0
--- /dev/null
+++ b/test/OpenMP/sections_misc_messages.c
@@ -0,0 +1,271 @@
+// RUN: %clang_cc1 -fsyntax-only -fopenmp=libiomp5 -verify %s
+
+void foo();
+
+// expected-error@+1 {{unexpected OpenMP directive '#pragma omp sections'}}
+#pragma omp sections
+
+// expected-error@+1 {{unexpected OpenMP directive '#pragma omp sections'}}
+#pragma omp sections foo
+
+void test_no_clause() {
+  int i;
+#pragma omp sections
+  {
+    foo();
+  }
+
+// expected-error@+2 {{the statement for '#pragma omp sections' must be a compound statement}}
+#pragma omp sections
+  ++i;
+}
+
+void test_branch_protected_scope() {
+  int i = 0;
+L1:
+  ++i;
+
+  int x[24];
+
+#pragma omp parallel
+#pragma omp sections
+  {
+    if (i == 5)
+      goto L1; // expected-error {{use of undeclared label 'L1'}}
+    else if (i == 6)
+      return; // expected-error {{cannot return from OpenMP region}}
+    else if (i == 7)
+      goto L2;
+    else if (i == 8) {
+    L2:
+      x[i]++;
+    }
+  }
+
+  if (x[0] == 0)
+    goto L2; // expected-error {{use of undeclared label 'L2'}}
+  else if (x[1] == 1)
+    goto L1;
+}
+
+void test_invalid_clause() {
+  int i;
+#pragma omp parallel
+// expected-warning@+1 {{extra tokens at the end of '#pragma omp sections' are ignored}}
+#pragma omp sections foo bar
+  {
+    foo();
+  }
+}
+
+void test_non_identifiers() {
+  int i, x;
+
+#pragma omp parallel
+// expected-warning@+1 {{extra tokens at the end of '#pragma omp sections' are ignored}}
+#pragma omp sections;
+  {
+    foo();
+  }
+#pragma omp parallel
+// expected-error@+2 {{unexpected OpenMP clause 'linear' in directive '#pragma omp sections'}}
+// expected-warning@+1 {{extra tokens at the end of '#pragma omp sections' are ignored}}
+#pragma omp sections linear(x);
+  {
+    foo();
+  }
+
+#pragma omp parallel
+// expected-warning@+1 {{extra tokens at the end of '#pragma omp sections' are ignored}}
+#pragma omp sections private(x);
+  {
+    foo();
+  }
+
+#pragma omp parallel
+// expected-warning@+1 {{extra tokens at the end of '#pragma omp sections' are ignored}}
+#pragma omp sections, private(x);
+  {
+    foo();
+  }
+}
+
+void test_private() {
+  int i;
+#pragma omp parallel
+// expected-error@+2 {{expected expression}}
+// expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
+#pragma omp sections private(
+  {
+    foo();
+  }
+#pragma omp parallel
+// expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
+// expected-error@+1 2 {{expected expression}}
+#pragma omp sections private(,
+  {
+    foo();
+  }
+#pragma omp parallel
+// expected-error@+1 2 {{expected expression}}
+#pragma omp sections private(, )
+  {
+    foo();
+  }
+#pragma omp parallel
+// expected-error@+1 {{expected expression}}
+#pragma omp sections private()
+  {
+    foo();
+  }
+#pragma omp parallel
+// expected-error@+1 {{expected expression}}
+#pragma omp sections private(int)
+  {
+    foo();
+  }
+#pragma omp parallel
+// expected-error@+1 {{expected variable name}}
+#pragma omp sections private(0)
+  {
+    foo();
+  }
+
+  int x, y, z;
+#pragma omp parallel
+#pragma omp sections private(x)
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections private(x, y)
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections private(x, y, z)
+  {
+    foo();
+  }
+}
+
+void test_lastprivate() {
+  int i;
+#pragma omp parallel
+// expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
+// expected-error@+1 {{expected expression}}
+#pragma omp sections lastprivate(
+  {
+    foo();
+  }
+
+#pragma omp parallel
+// expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
+// expected-error@+1 2 {{expected expression}}
+#pragma omp sections lastprivate(,
+  {
+    foo();
+  }
+#pragma omp parallel
+// expected-error@+1 2 {{expected expression}}
+#pragma omp sections lastprivate(, )
+  {
+    foo();
+  }
+#pragma omp parallel
+// expected-error@+1 {{expected expression}}
+#pragma omp sections lastprivate()
+  {
+    foo();
+  }
+#pragma omp parallel
+// expected-error@+1 {{expected expression}}
+#pragma omp sections lastprivate(int)
+  {
+    foo();
+  }
+#pragma omp parallel
+// expected-error@+1 {{expected variable name}}
+#pragma omp sections lastprivate(0)
+  {
+    foo();
+  }
+
+  int x, y, z;
+#pragma omp parallel
+#pragma omp sections lastprivate(x)
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(x, y)
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(x, y, z)
+  {
+    foo();
+  }
+}
+
+void test_firstprivate() {
+  int i;
+#pragma omp parallel
+// expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
+// expected-error@+1 {{expected expression}}
+#pragma omp sections firstprivate(
+  {
+    foo();
+  }
+
+#pragma omp parallel
+// expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
+// expected-error@+1 2 {{expected expression}}
+#pragma omp sections firstprivate(,
+  {
+    foo();
+  }
+#pragma omp parallel
+// expected-error@+1 2 {{expected expression}}
+#pragma omp sections firstprivate(, )
+  {
+    foo();
+  }
+#pragma omp parallel
+// expected-error@+1 {{expected expression}}
+#pragma omp sections firstprivate()
+  {
+    foo();
+  }
+#pragma omp parallel
+// expected-error@+1 {{expected expression}}
+#pragma omp sections firstprivate(int)
+  {
+    foo();
+  }
+#pragma omp parallel
+// expected-error@+1 {{expected variable name}}
+#pragma omp sections firstprivate(0)
+  {
+    foo();
+  }
+
+  int x, y, z;
+#pragma omp parallel
+#pragma omp sections lastprivate(x) firstprivate(x)
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(x, y) firstprivate(x, y)
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections lastprivate(x, y, z) firstprivate(x, y, z)
+  {
+    foo();
+  }
+}
+
diff --git a/test/OpenMP/sections_private_messages.cpp b/test/OpenMP/sections_private_messages.cpp
new file mode 100644
index 0000000000..7f5aa84968
--- /dev/null
+++ b/test/OpenMP/sections_private_messages.cpp
@@ -0,0 +1,204 @@
+// RUN: %clang_cc1 -verify -fopenmp=libiomp5 %s
+
+void foo() {
+}
+
+bool foobool(int argc) {
+  return argc;
+}
+
+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;
+const S2 ba[5];
+class S3 {
+  int a;
+
+public:
+  S3() : a(0) {}
+};
+const S3 ca[5];
+class S4 { // expected-note {{'S4' declared here}}
+  int a;
+  S4();
+
+public:
+  S4(int v) : a(v) {}
+};
+class S5 { // expected-note {{'S5' declared here}}
+  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;                // expected-note {{'j' defined here}}
+#pragma omp sections private // expected-error {{expected '(' after 'private'}}
+  {
+    foo();
+  }
+#pragma omp sections private( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp sections private() // expected-error {{expected expression}}
+  {
+    foo();
+  }
+#pragma omp sections private(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp sections private(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp sections private(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
+  {
+    foo();
+  }
+#pragma omp sections private(argc)
+  {
+    foo();
+  }
+#pragma omp sections private(S1) // expected-error {{'S1' does not refer to a value}}
+  {
+    foo();
+  }
+#pragma omp sections private(a, b) // expected-error {{private variable with incomplete type 'S1'}}
+  {
+    foo();
+  }
+#pragma omp sections private(argv[1]) // expected-error {{expected variable name}}
+  {
+    foo();
+  }
+#pragma omp sections private(e, g)
+  {
+    foo();
+  }
+#pragma omp sections private(h) // expected-error {{threadprivate or thread local variable cannot be private}}
+  {
+    foo();
+  }
+#pragma omp sections shared(i) // expected-error {{unexpected OpenMP clause 'shared' in directive '#pragma omp sections'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+  {
+    int v = 0;
+    int i;
+#pragma omp sections private(i)
+    {
+      foo();
+    }
+    v += i;
+  }
+#pragma omp parallel shared(i)
+#pragma omp parallel private(i)
+#pragma omp sections private(j) // expected-error {{arguments of OpenMP clause 'private' cannot be of reference type}}
+  {
+    foo();
+  }
+#pragma omp sections private(i)
+  {
+    foo();
+  }
+  return 0;
+}
+
+int main(int argc, char **argv) {
+  S4 e(4); // expected-note {{'e' defined here}}
+  S5 g(5); // expected-note {{'g' defined here}}
+  int i;
+  int &j = i;                // expected-note {{'j' defined here}}
+#pragma omp sections private // expected-error {{expected '(' after 'private'}}
+  {
+    foo();
+  }
+#pragma omp sections private( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp sections private() // expected-error {{expected expression}}
+  {
+    foo();
+  }
+#pragma omp sections private(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp sections private(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp sections private(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
+  {
+    foo();
+  }
+#pragma omp sections private(argc)
+  {
+    foo();
+  }
+#pragma omp sections private(S1) // expected-error {{'S1' does not refer to a value}}
+  {
+    foo();
+  }
+#pragma omp sections private(a, b) // expected-error {{private variable with incomplete type 'S1'}}
+  {
+    foo();
+  }
+#pragma omp sections private(argv[1]) // expected-error {{expected variable name}}
+  {
+    foo();
+  }
+#pragma omp sections private(e, g) // expected-error 2 {{private variable must have an accessible, unambiguous default constructor}}
+  {
+    foo();
+  }
+#pragma omp sections private(h) // expected-error {{threadprivate or thread local variable cannot be private}}
+  {
+    foo();
+  }
+#pragma omp sections shared(i) // expected-error {{unexpected OpenMP clause 'shared' in directive '#pragma omp sections'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+  {
+    int i;
+#pragma omp sections private(i)
+    {
+      foo();
+    }
+  }
+#pragma omp parallel shared(i)
+#pragma omp parallel private(i)
+#pragma omp sections private(j) // expected-error {{arguments of OpenMP clause 'private' cannot be of reference type}}
+  {
+    foo();
+  }
+#pragma omp sections private(i)
+  {
+    foo();
+  }
+
+  return 0;
+}
+
diff --git a/test/OpenMP/sections_reduction_messages.cpp b/test/OpenMP/sections_reduction_messages.cpp
new file mode 100644
index 0000000000..8c4bdcc2e8
--- /dev/null
+++ b/test/OpenMP/sections_reduction_messages.cpp
@@ -0,0 +1,413 @@
+// RUN: %clang_cc1 -verify -fopenmp=libiomp5 -ferror-limit 100 -o - %s
+
+void foo() {
+}
+
+bool foobool(int argc) {
+  return argc;
+}
+
+struct S1; // expected-note {{declared here}} expected-note 4 {{forward declaration of 'S1'}}
+extern S1 a;
+class S2 {
+  mutable int a;
+  S2 &operator+=(const S2 &arg) { return (*this); }
+
+public:
+  S2() : a(0) {}
+  S2(S2 &s2) : a(s2.a) {}
+  static float S2s; // expected-note 2 {{static data member is predetermined as shared}}
+  static const float S2sc;
+};
+const float S2::S2sc = 0; // expected-note 2 {{'S2sc' defined here}}
+S2 b;                     // expected-note 2 {{'b' defined here}}
+const S2 ba[5];           // expected-note 2 {{'ba' defined here}}
+class S3 {
+  int a;
+
+public:
+  S3() : a(0) {}
+  S3(const S3 &s3) : a(s3.a) {}
+  S3 operator+=(const S3 &arg1) { return arg1; }
+};
+int operator+=(const S3 &arg1, const S3 &arg2) { return 5; }
+S3 c;               // expected-note 2 {{'c' defined here}}
+const S3 ca[5];     // expected-note 2 {{'ca' defined here}}
+extern const int f; // expected-note 4 {{'f' declared here}}
+class S4 {          // expected-note {{'S4' declared here}}
+  int a;
+  S4();
+  S4(const S4 &s4);
+  S4 &operator+=(const S4 &arg) { return (*this); }
+
+public:
+  S4(int v) : a(v) {}
+};
+S4 &operator&=(S4 &arg1, S4 &arg2) { return arg1; }
+class S5 {
+  int a;
+  S5() : a(0) {}
+  S5(const S5 &s5) : a(s5.a) {}
+  S5 &operator+=(const S5 &arg);
+
+public:
+  S5(int v) : a(v) {}
+};
+class S6 {
+  int a;
+
+public:
+  S6() : a(6) {}
+  operator int() { return 6; }
+} o; // expected-note 2 {{'o' defined here}}
+
+S3 h, k;
+#pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
+
+template <class T>       // expected-note {{declared here}}
+T tmain(T argc) {        // expected-note 2 {{'argc' defined here}}
+  const T d = T();       // expected-note 4 {{'d' defined here}}
+  const T da[5] = {T()}; // expected-note 2 {{'da' defined here}}
+  T qa[5] = {T()};
+  T i;
+  T &j = i;                // expected-note 4 {{'j' defined here}}
+  S3 &p = k;               // expected-note 2 {{'p' defined here}}
+  const T &r = da[(int)i]; // expected-note 2 {{'r' defined here}}
+  T &q = qa[(int)i];       // expected-note 2 {{'q' defined here}}
+  T fl;                    // expected-note {{'fl' defined here}}
+#pragma omp parallel
+#pragma omp sections reduction // expected-error {{expected '(' after 'reduction'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp sections' are ignored}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(& : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{variable of type 'float' is not valid for specified reduction operation}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{variable of type 'float' is not valid for specified reduction operation}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(|| : argc ? i : argc) // expected-error 2 {{expected variable name}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(foo : argc) //expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(&& : argc)
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(^ : T) // expected-error {{'T' does not refer to a value}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(+ : a, b, c, d, f) // expected-error {{reduction variable with incomplete type 'S1'}} expected-error 3 {{const-qualified variable cannot be reduction}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(min : a, b, c, d, f) // expected-error {{reduction variable with incomplete type 'S1'}} expected-error 2 {{arguments of OpenMP clause 'reduction' for 'min' or 'max' must be of arithmetic type}} expected-error 3 {{const-qualified variable cannot be reduction}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(max : qa[1]) // expected-error 2 {{expected variable name}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(+ : ba) // expected-error {{a reduction variable with array type 'const S2 [5]'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(* : ca) // expected-error {{a reduction variable with array type 'const S3 [5]'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(- : da) // expected-error {{a reduction variable with array type 'const int [5]'}} expected-error {{a reduction variable with array type 'const float [5]'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(^ : fl) // expected-error {{variable of type 'float' is not valid for specified reduction operation}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(+ : h, k) // expected-error {{threadprivate or thread local variable cannot be reduction}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(+ : o) // expected-error {{variable of type 'class S6' is not valid for specified reduction operation}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections private(i), reduction(+ : j), reduction(+ : q) // expected-error 4 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
+  {
+    foo();
+  }
+#pragma omp parallel private(k)
+#pragma omp sections reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(+ : p), reduction(+ : p) // expected-error 3 {{variable can appear only once in OpenMP 'reduction' clause}} expected-note 3 {{previously referenced here}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(+ : r) // expected-error 2 {{const-qualified variable cannot be reduction}}
+  {
+    foo();
+  }
+#pragma omp parallel shared(i)
+#pragma omp parallel reduction(min : i)
+#pragma omp sections reduction(max : j) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
+  {
+    foo();
+  }
+#pragma omp parallel private(fl)       // expected-note 2 {{defined as private}}
+#pragma omp sections reduction(+ : fl) // expected-error 2 {{reduction variable must be shared}}
+  {
+    foo();
+  }
+#pragma omp parallel reduction(* : fl) // expected-note 2 {{defined as reduction}}
+#pragma omp sections reduction(+ : fl) // expected-error 2 {{reduction variable must be shared}}
+  {
+    foo();
+  }
+
+  return T();
+}
+
+int main(int argc, char **argv) {
+  const int d = 5;       // expected-note 2 {{'d' defined here}}
+  const int da[5] = {0}; // expected-note {{'da' defined here}}
+  int qa[5] = {0};
+  S4 e(4); // expected-note {{'e' defined here}}
+  S5 g(5); // expected-note {{'g' defined here}}
+  int i;
+  int &j = i;           // expected-note 2 {{'j' defined here}}
+  S3 &p = k;            // expected-note 2 {{'p' defined here}}
+  const int &r = da[i]; // expected-note {{'r' defined here}}
+  int &q = qa[i];       // expected-note {{'q' defined here}}
+  float fl;             // expected-note {{'fl' defined here}}
+#pragma omp parallel
+#pragma omp sections reduction // expected-error {{expected '(' after 'reduction'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp sections' are ignored}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(foo : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(|| : argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(~ : argc) // expected-error {{expected unqualified-id}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(&& : argc)
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(^ : S1) // expected-error {{'S1' does not refer to a value}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(+ : a, b, c, d, f) // expected-error {{reduction variable with incomplete type 'S1'}} expected-error 2 {{const-qualified variable cannot be reduction}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(min : a, b, c, d, f) // expected-error {{reduction variable with incomplete type 'S1'}} expected-error 2 {{arguments of OpenMP clause 'reduction' for 'min' or 'max' must be of arithmetic type}} expected-error 2 {{const-qualified variable cannot be reduction}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(max : argv[1]) // expected-error {{expected variable name}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(+ : ba) // expected-error {{a reduction variable with array type 'const S2 [5]'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(* : ca) // expected-error {{a reduction variable with array type 'const S3 [5]'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(- : da) // expected-error {{a reduction variable with array type 'const int [5]'}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(^ : fl) // expected-error {{variable of type 'float' is not valid for specified reduction operation}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(& : e, g) // expected-error {{reduction variable must have an accessible, unambiguous default constructor}} expected-error {{variable of type 'S5' is not valid for specified reduction operation}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(+ : h, k) // expected-error {{threadprivate or thread local variable cannot be reduction}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(+ : o) // expected-error {{variable of type 'class S6' is not valid for specified reduction operation}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections private(i), reduction(+ : j), reduction(+ : q) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
+  {
+    foo();
+  }
+#pragma omp parallel private(k)
+#pragma omp sections reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(+ : p), reduction(+ : p) // expected-error {{variable can appear only once in OpenMP 'reduction' clause}} expected-note {{previously referenced here}}
+  {
+    foo();
+  }
+#pragma omp parallel
+#pragma omp sections reduction(+ : r) // expected-error {{const-qualified variable cannot be reduction}}
+  {
+    foo();
+  }
+#pragma omp parallel shared(i)
+#pragma omp parallel reduction(min : i)
+#pragma omp sections reduction(max : j) // expected-error {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
+  {
+    foo();
+  }
+#pragma omp parallel private(fl)       // expected-note {{defined as private}}
+#pragma omp sections reduction(+ : fl) // expected-error {{reduction variable must be shared}}
+  {
+    foo();
+  }
+#pragma omp parallel reduction(* : fl) // expected-note {{defined as reduction}}
+#pragma omp sections reduction(+ : fl) // expected-error {{reduction variable must be shared}}
+  {
+    foo();
+  }
+
+  return tmain(argc) + tmain(fl); // expected-note {{in instantiation of function template specialization 'tmain<int>' requested here}} expected-note {{in instantiation of function template specialization 'tmain<float>' requested here}}
+}