diff options
Diffstat (limited to 'test/CodeGenCXX/pragma-loop-safety-nested.cpp')
| -rw-r--r-- | test/CodeGenCXX/pragma-loop-safety-nested.cpp | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/test/CodeGenCXX/pragma-loop-safety-nested.cpp b/test/CodeGenCXX/pragma-loop-safety-nested.cpp new file mode 100644 index 0000000000000..deec06bbc8279 --- /dev/null +++ b/test/CodeGenCXX/pragma-loop-safety-nested.cpp @@ -0,0 +1,27 @@ +// RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s | FileCheck %s + +// Verify that the outer loop has the llvm.access.group property for the +// accesses outside and inside the inner loop. +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: load i32, i32* %Length.addr, align 4, !llvm.access.group ![[ACCESS_GROUP_2:[0-9]+]] +// CHECK: %[[MUL:.+]] = mul +// CHECK: store i32 %[[MUL]], i32* %{{.+}}, !llvm.access.group ![[ACCESS_GROUP_LIST_3:[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: ![[ACCESS_GROUP_LIST_3]] = !{![[ACCESS_GROUP_2]], ![[ACCESS_GROUP_4:[0-9]+]]} +// CHECK: ![[ACCESS_GROUP_4]] = distinct !{} +// CHECK: ![[INNER_LOOPID]] = distinct !{![[INNER_LOOPID]], {{.*}} ![[PARALLEL_ACCESSES_8:[0-9]+]]} +// CHECK: ![[PARALLEL_ACCESSES_8]] = !{!"llvm.loop.parallel_accesses", ![[ACCESS_GROUP_4]]} +// CHECK: ![[OUTER_LOOPID]] = distinct !{![[OUTER_LOOPID]], {{.*}} ![[PARALLEL_ACCESSES_10:[0-9]+]]} +// CHECK: ![[PARALLEL_ACCESSES_10]] = !{!"llvm.loop.parallel_accesses", ![[ACCESS_GROUP_2]]} |