[OPENMP] allow clause 'private' on directive 'omp simd'

llvm-svn: 202944

clang/include/clang/Basic/OpenMPKinds.def

@@ -48,7 +48,8 @@ OPENMP_PARALLEL_CLAUSE(private)
 OPENMP_PARALLEL_CLAUSE(firstprivate)
 OPENMP_PARALLEL_CLAUSE(shared)
 
-// FIXME: clauses allowed for directive 'omp simd'.
+// FIXME: more clauses allowed for directive 'omp simd'.
+OPENMP_SIMD_CLAUSE(private)
 
 // Static attributes for 'default' clause.
 OPENMP_DEFAULT_KIND(none)

clang/test/OpenMP/simd_ast_print.cpp

@@ -7,17 +7,19 @@
 #define HEADER
 
 void foo() {}
-
+int g_ind = 1;
 template<class T, class N> T reduct(T* arr, N num) {
   N i;
   N ind;
+  N myind;
   T sum = (T)0;
 // CHECK: T sum = (T)0;
-#pragma omp simd
-// CHECK-NEXT: #pragma omp simd
+#pragma omp simd private(myind, g_ind)
+// CHECK-NEXT: #pragma omp simd private(myind,g_ind)
   for (i = 0; i < num; ++i) {
-    T cur = arr[ind];
-    ++ind;
+    myind = ind;
+    T cur = arr[myind];
+    ind += g_ind;
     sum += cur;
   }
 }
@@ -28,11 +30,14 @@ template<class T> struct S {
   {}
   T result(T *v) const {
     T res;
+    T val;
 // CHECK: T res;
-#pragma omp simd
-// CHECK-NEXT: #pragma omp simd
+// CHECK: T val;
+#pragma omp simd private(val)
+// CHECK-NEXT: #pragma omp simd private(val)
     for (T i = 7; i < m_a; ++i) {
-      res = v[i-7] + m_a;
+      val = v[i-7] + m_a;
+      res = val;
     }
     return res;
   }
@@ -51,10 +56,10 @@ int main (int argc, char **argv) {
   for (int i=0; i < 2; ++i)*a=2;
 // CHECK-NEXT: for (int i = 0; i < 2; ++i)
 // CHECK-NEXT: *a = 2;
-#pragma omp simd
+#pragma omp simd private(argc, b)
   for (int i = 0; i < 10; ++i)
   for (int j = 0; j < 10; ++j) {foo(); k1 += 8; k2 += 8;}
-// CHECK-NEXT: #pragma omp simd
+// CHECK-NEXT: #pragma omp simd private(argc,b)
 // CHECK-NEXT: for (int i = 0; i < 10; ++i)
 // CHECK-NEXT: for (int j = 0; j < 10; ++j) {
 // CHECK-NEXT: foo();

clang/test/OpenMP/simd_misc_messages.c

@@ -59,6 +59,7 @@ void test_invalid_clause()
 void test_non_identifiers()
 {
   int i, x;
+
   // expected-warning@+1 {{extra tokens at the end of '#pragma omp simd' are ignored}}
   #pragma omp simd;
   for (i = 0; i < 16; ++i) ;
@@ -66,8 +67,57 @@ void test_non_identifiers()
   // expected-warning@+1 {{extra tokens at the end of '#pragma omp simd' are ignored}}
   #pragma omp simd firstprivate(x);
   for (i = 0; i < 16; ++i) ;
+
+  // expected-warning@+1 {{extra tokens at the end of '#pragma omp simd' are ignored}}
+  #pragma omp simd private(x);
+  for (i = 0; i < 16; ++i) ;
+
   // expected-warning@+1 {{extra tokens at the end of '#pragma omp simd' are ignored}}
   #pragma omp simd , private(x);
   for (i = 0; i < 16; ++i) ;
 }
 
+void test_private()
+{
+  int i;
+  // expected-error@+2 {{expected expression}}
+  // expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
+  #pragma omp simd private(
+  for (i = 0; i < 16; ++i) ;
+  // expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
+  // expected-error@+1 2 {{expected expression}}
+  #pragma omp simd private(,
+  for (i = 0; i < 16; ++i) ;
+  // expected-error@+1 2 {{expected expression}}
+  #pragma omp simd private(,)
+  for (i = 0; i < 16; ++i) ;
+  // expected-error@+1 {{expected expression}}
+  #pragma omp simd private()
+  for (i = 0; i < 16; ++i) ;
+  // expected-error@+1 {{expected expression}}
+  #pragma omp simd private(int)
+  for (i = 0; i < 16; ++i) ;
+  // expected-error@+1 {{expected variable name}}
+  #pragma omp simd private(0)
+  for (i = 0; i < 16; ++i) ;
+
+  int x, y, z;
+  #pragma omp simd private(x)
+  for (i = 0; i < 16; ++i) ;
+  #pragma omp simd private(x, y)
+  for (i = 0; i < 16; ++i) ;
+  #pragma omp simd private(x, y, z)
+  for (i = 0; i < 16; ++i) {
+    x = y * i + z;
+  }
+}
+
+void test_firstprivate()
+{
+  int i;
+  // expected-error@+3 {{expected ')'}} expected-note@+3 {{to match this '('}}
+  // expected-error@+2 {{unexpected OpenMP clause 'firstprivate' in directive '#pragma omp simd'}}
+  // expected-error@+1 {{expected expression}}
+  #pragma omp simd firstprivate(
+  for (i = 0; i < 16; ++i) ;
+}