[OPENMP 4.1] Add 'simd' clause for 'ordered' directive.

Parsing and sema analysis for 'simd' clause in 'ordered' directive.
Description
If the simd clause is specified, the ordered regions encountered by any thread will use only a single SIMD lane to execute the ordered
regions in the order of the loop iterations.
Restrictions
An ordered construct with the simd clause is the only OpenMP construct that can appear in the simd region

llvm-svn: 248696

1 files changed, 90 insertions, 0 deletions

diff --git a/clang/test/OpenMP/ordered_ast_print.cpp b/clang/test/OpenMP/ordered_ast_print.cpp
index f8601c51bad..6328ec0d766 100644
--- a/clang/test/OpenMP/ordered_ast_print.cpp
+++ b/clang/test/OpenMP/ordered_ast_print.cpp
@@ -24,6 +24,24 @@ T tmain (T argc) {
   {
     a=2;
   }
+  #pragma omp simd
+  for (int i =0 ; i < argc; ++i)
+  #pragma omp ordered simd
+  {
+    a=2;
+  }
+  #pragma omp for simd
+  for (int i =0 ; i < argc; ++i)
+  #pragma omp ordered simd
+  {
+    a=2;
+  }
+  #pragma omp parallel for simd
+  for (int i =0 ; i < argc; ++i)
+  #pragma omp ordered simd
+  {
+    a=2;
+  }
   return (0);
 }
 
@@ -40,6 +58,24 @@ T tmain (T argc) {
 // CHECK-NEXT: {
 // CHECK-NEXT: a = 2;
 // CHECK-NEXT: }
+// CHECK-NEXT: #pragma omp simd
+// CHECK-NEXT: for (int i = 0; i < argc; ++i)
+// CHECK-NEXT: #pragma omp ordered simd
+// CHECK-NEXT: {
+// CHECK-NEXT: a = 2;
+// CHECK-NEXT: }
+// CHECK-NEXT: #pragma omp for simd
+// CHECK-NEXT: for (int i = 0; i < argc; ++i)
+// CHECK-NEXT: #pragma omp ordered simd
+// CHECK-NEXT: {
+// CHECK-NEXT: a = 2;
+// CHECK-NEXT: }
+// CHECK-NEXT: #pragma omp parallel for simd
+// CHECK-NEXT: for (int i = 0; i < argc; ++i)
+// CHECK-NEXT: #pragma omp ordered simd
+// CHECK-NEXT: {
+// CHECK-NEXT: a = 2;
+// CHECK-NEXT: }
 
 // CHECK: static T a;
 // CHECK-NEXT: #pragma omp for ordered
@@ -54,6 +90,24 @@ T tmain (T argc) {
 // CHECK-NEXT: {
 // CHECK-NEXT: a = 2;
 // CHECK-NEXT: }
+// CHECK-NEXT: #pragma omp simd
+// CHECK-NEXT: for (int i = 0; i < argc; ++i)
+// CHECK-NEXT: #pragma omp ordered simd
+// CHECK-NEXT: {
+// CHECK-NEXT: a = 2;
+// CHECK-NEXT: }
+// CHECK-NEXT: #pragma omp for simd
+// CHECK-NEXT: for (int i = 0; i < argc; ++i)
+// CHECK-NEXT: #pragma omp ordered simd
+// CHECK-NEXT: {
+// CHECK-NEXT: a = 2;
+// CHECK-NEXT: }
+// CHECK-NEXT: #pragma omp parallel for simd
+// CHECK-NEXT: for (int i = 0; i < argc; ++i)
+// CHECK-NEXT: #pragma omp ordered simd
+// CHECK-NEXT: {
+// CHECK-NEXT: a = 2;
+// CHECK-NEXT: }
 
 int main (int argc, char **argv) {
   int b = argc, c, d, e, f, g;
@@ -71,6 +125,24 @@ int main (int argc, char **argv) {
   {
     a=2;
   }
+  #pragma omp simd
+  for (int i =0 ; i < argc; ++i)
+  #pragma omp ordered simd
+  {
+    a=2;
+  }
+  #pragma omp for simd
+  for (int i =0 ; i < argc; ++i)
+  #pragma omp ordered simd
+  {
+    a=2;
+  }
+  #pragma omp parallel for simd
+  for (int i =0 ; i < argc; ++i)
+  #pragma omp ordered simd
+  {
+    a=2;
+  }
 // CHECK-NEXT: #pragma omp for ordered
 // CHECK-NEXT: for (int i = 0; i < argc; ++i)
 // CHECK-NEXT: #pragma omp ordered
@@ -83,6 +155,24 @@ int main (int argc, char **argv) {
 // CHECK-NEXT: {
 // CHECK-NEXT: a = 2;
 // CHECK-NEXT: }
+// CHECK-NEXT: #pragma omp simd
+// CHECK-NEXT: for (int i = 0; i < argc; ++i)
+// CHECK-NEXT: #pragma omp ordered simd
+// CHECK-NEXT: {
+// CHECK-NEXT: a = 2;
+// CHECK-NEXT: }
+// CHECK-NEXT: #pragma omp for simd
+// CHECK-NEXT: for (int i = 0; i < argc; ++i)
+// CHECK-NEXT: #pragma omp ordered simd
+// CHECK-NEXT: {
+// CHECK-NEXT: a = 2;
+// CHECK-NEXT: }
+// CHECK-NEXT: #pragma omp parallel for simd
+// CHECK-NEXT: for (int i = 0; i < argc; ++i)
+// CHECK-NEXT: #pragma omp ordered simd
+// CHECK-NEXT: {
+// CHECK-NEXT: a = 2;
+// CHECK-NEXT: }
   return tmain(argc);
 }