diff options
Diffstat (limited to 'clang/test/CodeGenCXX/pragma-loop-safety-nested.cpp')
| -rw-r--r-- | clang/test/CodeGenCXX/pragma-loop-safety-nested.cpp | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/pragma-loop-safety-nested.cpp b/clang/test/CodeGenCXX/pragma-loop-safety-nested.cpp new file mode 100644 index 00000000000..4641c953ee6 --- /dev/null +++ b/clang/test/CodeGenCXX/pragma-loop-safety-nested.cpp @@ -0,0 +1,21 @@ +// RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s | FileCheck %s + +// Verify that the inner access is tagged with a parallel_loop_access +// for the inner and outer loop using a list. +void vectorize_nested_test(int *List, int Length) { +#pragma clang loop vectorize(assume_safety) interleave(disable) unroll(disable) + for (int i = 0; i < Length; ++i) { +#pragma clang loop vectorize(assume_safety) interleave(disable) unroll(disable) + for (int j = 0; j < Length; ++j) + List[i * Length + j] = (i + j) * 2; + } +} + +// CHECK: %[[MUL:.+]] = mul +// CHECK: store i32 %[[MUL]], i32* %{{.+}}, !llvm.mem.parallel_loop_access ![[PARALLEL_LIST:[0-9]+]] +// CHECK: br label %{{.+}}, !llvm.loop ![[INNER_LOOPID:[0-9]+]] +// CHECK: br label %{{.+}}, !llvm.loop ![[OUTER_LOOPID:[0-9]+]] + +// CHECK: ![[OUTER_LOOPID]] = distinct !{![[OUTER_LOOPID]], +// CHECK: ![[PARALLEL_LIST]] = !{![[OUTER_LOOPID]], ![[INNER_LOOPID]]} +// CHECK: ![[INNER_LOOPID]] = distinct !{![[INNER_LOOPID]], |
