1 files changed, 90 insertions, 0 deletions
diff --git a/test/PCH/pragma-loop.cpp b/test/PCH/pragma-loop.cpp
new file mode 100644
index 000000000000..1456a2778f33
--- /dev/null
+++ b/test/PCH/pragma-loop.cpp
@@ -0,0 +1,90 @@
+// RUN: %clang_cc1 -emit-pch -o %t.a %s
+// RUN: %clang_cc1 -include-pch %t.a %s -ast-print -o - | FileCheck %s
+
+// FIXME: A bug in ParsedAttributes causes the order of the attributes to be
+// reversed. The checks are consequently in the reverse order below.
+
+// CHECK: #pragma clang loop unroll_count(16)
+// CHECK: #pragma clang loop interleave_count(8)
+// CHECK: #pragma clang loop vectorize_width(4)
+// CHECK: #pragma clang loop unroll(disable)
+// CHECK: #pragma clang loop interleave(disable)
+// CHECK: #pragma clang loop vectorize(enable)
+// CHECK: #pragma clang loop unroll(enable)
+// CHECK: #pragma clang loop interleave(enable)
+// CHECK: #pragma clang loop vectorize(disable)
+// CHECK: #pragma unroll
+// CHECK: #pragma unroll (32)
+
+#ifndef HEADER
+#define HEADER
+
+class pragma_test {
+public:
+  inline void run1(int *List, int Length) {
+    int i = 0;
+#pragma clang loop vectorize_width(4)
+#pragma clang loop interleave_count(8)
+#pragma clang loop unroll_count(16)
+    while (i < Length) {
+      List[i] = i;
+      i++;
+    }
+  }
+
+  inline void run2(int *List, int Length) {
+    int i = 0;
+#pragma clang loop vectorize(enable)
+#pragma clang loop interleave(disable)
+#pragma clang loop unroll(disable)
+    while (i - 1 < Length) {
+      List[i] = i;
+      i++;
+    }
+  }
+
+  inline void run3(int *List, int Length) {
+    int i = 0;
+#pragma clang loop vectorize(disable)
+#pragma clang loop interleave(enable)
+#pragma clang loop unroll(enable)
+    while (i - 3 < Length) {
+      List[i] = i;
+      i++;
+    }
+  }
+
+  inline void run4(int *List, int Length) {
+    int i = 0;
+#pragma unroll
+    while (i - 3 < Length) {
+      List[i] = i;
+      i++;
+    }
+  }
+
+  inline void run5(int *List, int Length) {
+    int i = 0;
+#pragma unroll 32
+    while (i - 3 < Length) {
+      List[i] = i;
+      i++;
+    }
+  }
+};
+
+#else
+
+void test() {
+  int List[100];
+
+  pragma_test pt;
+
+  pt.run1(List, 100);
+  pt.run2(List, 100);
+  pt.run3(List, 100);
+  pt.run4(List, 100);
+  pt.run5(List, 100);
+}
+
+#endif