vendor/clang/clang-trunk-r351319

1 files changed, 47 insertions, 0 deletions

diff --git a/test/CodeGenCXX/pragma-pipeline.cpp b/test/CodeGenCXX/pragma-pipeline.cpp
new file mode 100644
index 0000000000000..6846f1544365f
--- /dev/null
+++ b/test/CodeGenCXX/pragma-pipeline.cpp
@@ -0,0 +1,47 @@
+// RUN: %clang_cc1 -triple hexagon -std=c++11 -emit-llvm -o - %s | FileCheck %s
+
+void pipeline_disabled(int *List, int Length, int Value) {
+// CHECK-LABEL: define {{.*}} @_Z17pipeline_disabled
+#pragma clang loop pipeline(disable)
+  for (int i = 0; i < Length; i++) {
+    // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_1:.*]]
+    List[i] = Value;
+  }
+}
+
+void pipeline_not_disabled(int *List, int Length, int Value) {
+  // CHECK-LABEL: define {{.*}} @_Z21pipeline_not_disabled
+  for (int i = 0; i < Length; i++) {
+    List[i] = Value;
+  }
+}
+
+void pipeline_initiation_interval(int *List, int Length, int Value) {
+// CHECK-LABEL: define {{.*}} @_Z28pipeline_initiation_interval 
+#pragma clang loop pipeline_initiation_interval(10)
+  for (int i = 0; i < Length; i++) {
+    // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_3:.*]]
+    List[i] = Value;
+  }
+}
+
+void pipeline_disabled_on_nested_loop(int *List, int Length, int Value) {
+  // CHECK-LABEL: define {{.*}} @_Z32pipeline_disabled_on_nested_loop
+  for (int i = 0; i < Length; i++) {
+#pragma clang loop pipeline(disable)
+    for (int j = 0; j < Length; j++) {
+      // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_4:.*]]
+      List[i * Length + j] = Value;
+    }
+  }
+}
+
+// CHECK: ![[LOOP_1]] = distinct !{![[LOOP_1]], ![[PIPELINE_DISABLE:.*]]}
+// CHECK: ![[PIPELINE_DISABLE]] = !{!"llvm.loop.pipeline.disable", i1 true}
+
+// CHECK-NOT:llvm.loop.pipeline
+
+// CHECK: ![[LOOP_3]] = distinct !{![[LOOP_3]], ![[PIPELINE_II_10:.*]]}
+// CHECK: ![[PIPELINE_II_10]] = !{!"llvm.loop.pipeline.initiationinterval", i32 10}
+
+// CHECK: ![[LOOP_4]] = distinct !{![[LOOP_4]], ![[PIPELINE_DISABLE]]}