[OPENMP] Codegen for `distribute parallel for simd` directive.

Added proper codegen for `distribute parallel for simd` directive.

llvm-svn: 319078
diff --git a/clang/lib/Sema/SemaOpenMP.cpp b/clang/lib/Sema/SemaOpenMP.cpp
index 985cc62..bd70ca2 100644
--- a/clang/lib/Sema/SemaOpenMP.cpp
+++ b/clang/lib/Sema/SemaOpenMP.cpp
@@ -6838,13 +6838,24 @@
   // The point of exit cannot be a branch out of the structured block.
   // longjmp() and throw() must not violate the entry/exit criteria.
   CS->getCapturedDecl()->setNothrow();
+  for (int ThisCaptureLevel =
+           getOpenMPCaptureLevels(OMPD_distribute_parallel_for_simd);
+       ThisCaptureLevel > 1; --ThisCaptureLevel) {
+    CS = cast<CapturedStmt>(CS->getCapturedStmt());
+    // 1.2.2 OpenMP Language Terminology
+    // Structured block - An executable statement with a single entry at the
+    // top and a single exit at the bottom.
+    // The point of exit cannot be a branch out of the structured block.
+    // longjmp() and throw() must not violate the entry/exit criteria.
+    CS->getCapturedDecl()->setNothrow();
+  }
 
   OMPLoopDirective::HelperExprs B;
   // In presence of clause 'collapse' with number of loops, it will
   // define the nested loops number.
   unsigned NestedLoopCount = CheckOpenMPLoop(
       OMPD_distribute_parallel_for_simd, getCollapseNumberExpr(Clauses),
-      nullptr /*ordered not a clause on distribute*/, AStmt, *this, *DSAStack,
+      nullptr /*ordered not a clause on distribute*/, CS, *this, *DSAStack,
       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
@@ -7793,6 +7804,7 @@
       CaptureRegion = OMPD_teams;
       break;
     case OMPD_distribute_parallel_for:
+    case OMPD_distribute_parallel_for_simd:
       CaptureRegion = OMPD_parallel;
       break;
     case OMPD_parallel_for:
@@ -7800,7 +7812,6 @@
     case OMPD_target_teams_distribute_parallel_for:
     case OMPD_target_teams_distribute_parallel_for_simd:
     case OMPD_teams_distribute_parallel_for_simd:
-    case OMPD_distribute_parallel_for_simd:
       // Do not capture schedule clause expressions.
       break;
     case OMPD_task: