diff options
Diffstat (limited to 'test/CodeGenCXX/pragma-loop-safety-outer.cpp')
| -rw-r--r-- | test/CodeGenCXX/pragma-loop-safety-outer.cpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/CodeGenCXX/pragma-loop-safety-outer.cpp b/test/CodeGenCXX/pragma-loop-safety-outer.cpp new file mode 100644 index 0000000000000..d99b86ffe23a2 --- /dev/null +++ b/test/CodeGenCXX/pragma-loop-safety-outer.cpp @@ -0,0 +1,22 @@ +// RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s | FileCheck %s + +// Verify that the outer loop has the inner loop's access in its +// llvm.loop.parallel_accesses property. +void vectorize_outer_test(int *List, int Length) { +#pragma clang loop vectorize(assume_safety) interleave(disable) unroll(disable) + for (int i = 0; i < Length; i += 2) { +#pragma clang loop unroll(full) + for (int j = 0; j < 2; j += 1) + List[i + j] = (i + j) * 2; + } +} + +// CHECK: %[[MUL:.+]] = mul +// CHECK: store i32 %[[MUL]], i32* %{{.+}}, !llvm.access.group ![[ACCESS_GROUP_2:[0-9]+]] +// CHECK: br label %{{.+}}, !llvm.loop ![[INNER_LOOPID:[0-9]+]] +// CHECK: br label %{{.+}}, !llvm.loop ![[OUTER_LOOPID:[0-9]+]] + +// CHECK: ![[ACCESS_GROUP_2]] = distinct !{} +// CHECK: ![[INNER_LOOPID]] = distinct !{![[INNER_LOOPID]], +// CHECK: ![[OUTER_LOOPID]] = distinct !{![[OUTER_LOOPID]], {{.*}} ![[PARALLEL_ACCESSES_9:[0-9]+]]} +// CHECK: ![[PARALLEL_ACCESSES_9]] = !{!"llvm.loop.parallel_accesses", ![[ACCESS_GROUP_2]]} |