| // 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, even when the inner loop | |
| // is not perfectly nested. | |
| void vectorize_imperfectly_nested_test(int *List, int Length) { | |
| #pragma clang loop vectorize(assume_safety) interleave(disable) unroll(disable) | |
| for (int i = 0; i < Length; ++i) { | |
| List[i * Length] = 42; | |
| #pragma clang loop vectorize(assume_safety) interleave(disable) unroll(disable) | |
| for (int j = 1; j < Length - 1; ++j) | |
| List[i * Length + j] = (i + j) * 2; | |
| List[(i + 1) * Length - 1] = 21; | |
| } | |
| } | |
| // CHECK: load i32, ptr %Length.addr, align 4, !llvm.access.group ![[ACCESS_GROUP_2:[0-9]+]] | |
| // CHECK: %[[MUL:.+]] = mul nsw i32 %add, 2 | |
| // CHECK: store i32 %[[MUL]], ptr %{{.+}}, !llvm.access.group ![[ACCESS_GROUP_3:[0-9]+]] | |
| // CHECK: br label %{{.+}}, !llvm.loop ![[INNER_LOOPID:[0-9]+]] | |
| // CHECK: store i32 21, ptr %{{.+}}, !llvm.access.group ![[ACCESS_GROUP_2]] | |
| // CHECK: br label %{{.+}}, !llvm.loop ![[OUTER_LOOPID:[0-9]+]] | |
| // CHECK: ![[ACCESS_GROUP_2]] = distinct !{} | |
| // CHECK: ![[ACCESS_GROUP_LIST_3:[0-9]+]] = !{![[ACCESS_GROUP_2]], ![[ACCESS_GROUP_4:[0-9]+]]} | |
| // CHECK: ![[ACCESS_GROUP_4]] = distinct !{} | |
| // CHECK: ![[INNER_LOOPID]] = distinct !{![[INNER_LOOPID]], [[MP:![0-9]+]], ![[PARALLEL_ACCESSES_8:[0-9]+]] | |
| // CHECK: [[MP]] = !{!"llvm.loop.mustprogress"} | |
| // CHECK: ![[PARALLEL_ACCESSES_8]] = !{!"llvm.loop.parallel_accesses", ![[ACCESS_GROUP_4]]} | |
| // CHECK: ![[OUTER_LOOPID]] = distinct !{![[OUTER_LOOPID]], [[MP]], ![[PARALLEL_ACCESSES_10:[0-9]+]] | |
| // CHECK: ![[PARALLEL_ACCESSES_10]] = !{!"llvm.loop.parallel_accesses", ![[ACCESS_GROUP_2]]} |