[OPENMP] Introduced type trait "__builtin_omp_required_simd_align" for default simd alignment.

Adds type trait "__builtin_omp_required_simd_align" after discussions here http://reviews.llvm.org/D9894
Differential Revision: http://reviews.llvm.org/D10597

llvm-svn: 241237

1 files changed, 11 insertions, 0 deletions

diff --git a/clang/test/CodeGen/openmp_default_simd_align.c b/clang/test/CodeGen/openmp_default_simd_align.c
new file mode 100644
index 00000000000..dcab5abf8fc
--- /dev/null
+++ b/clang/test/CodeGen/openmp_default_simd_align.c
@@ -0,0 +1,11 @@
+// RUN: %clang_cc1 -triple x86_64-unknown-unknown -O1 -emit-llvm -o - %s | FileCheck %s
+
+enum e0 { E0 };
+struct s0 {
+  enum e0         a:31;
+};
+
+int f0() {
+  return __builtin_omp_required_simd_align(struct s0);
+  // CHECK: ret i32 16
+}