| Michael Kruse | 0535137 | 2018-12-20 21:24:54 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s | FileCheck %s |
| 2 | |
| 3 | // Verify that the outer loop has the llvm.access.group property for the |
| 4 | // accesses outside and inside the inner loop, even when the inner loop |
| 5 | // is not perfectly nested. |
| 6 | void vectorize_imperfectly_nested_test(int *List, int Length) { |
| 7 | #pragma clang loop vectorize(assume_safety) interleave(disable) unroll(disable) |
| 8 | for (int i = 0; i < Length; ++i) { |
| 9 | List[i * Length] = 42; |
| 10 | #pragma clang loop vectorize(assume_safety) interleave(disable) unroll(disable) |
| 11 | for (int j = 1; j < Length - 1; ++j) |
| 12 | List[i * Length + j] = (i + j) * 2; |
| 13 | List[(i + 1) * Length - 1] = 21; |
| 14 | } |
| 15 | } |
| 16 | |
| 17 | |
| 18 | // CHECK: load i32, i32* %Length.addr, align 4, !llvm.access.group ![[ACCESS_GROUP_2:[0-9]+]] |
| 19 | |
| 20 | // CHECK: %[[MUL:.+]] = mul nsw i32 %add, 2 |
| 21 | // CHECK: store i32 %[[MUL]], i32* %{{.+}}, !llvm.access.group ![[ACCESS_GROUP_3:[0-9]+]] |
| 22 | // CHECK: br label %{{.+}}, !llvm.loop ![[INNER_LOOPID:[0-9]+]] |
| 23 | // CHECK: store i32 21, i32* %{{.+}}, !llvm.access.group ![[ACCESS_GROUP_2]] |
| 24 | // CHECK: br label %{{.+}}, !llvm.loop ![[OUTER_LOOPID:[0-9]+]] |
| 25 | |
| 26 | // CHECK: ![[ACCESS_GROUP_2]] = distinct !{} |
| 27 | // CHECK: ![[ACCESS_GROUP_LIST_3:[0-9]+]] = !{![[ACCESS_GROUP_2]], ![[ACCESS_GROUP_4:[0-9]+]]} |
| 28 | // CHECK: ![[ACCESS_GROUP_4]] = distinct !{} |
| Michael Kruse | 58e7642 | 2019-04-01 17:47:41 +0000 | [diff] [blame] | 29 | // CHECK: ![[INNER_LOOPID]] = distinct !{![[INNER_LOOPID]], ![[PARALLEL_ACCESSES_8:[0-9]+]] |
| Michael Kruse | 0535137 | 2018-12-20 21:24:54 +0000 | [diff] [blame] | 30 | // CHECK: ![[PARALLEL_ACCESSES_8]] = !{!"llvm.loop.parallel_accesses", ![[ACCESS_GROUP_4]]} |
| Michael Kruse | 58e7642 | 2019-04-01 17:47:41 +0000 | [diff] [blame] | 31 | // CHECK: ![[OUTER_LOOPID]] = distinct !{![[OUTER_LOOPID]], ![[PARALLEL_ACCESSES_10:[0-9]+]] |
| Michael Kruse | 0535137 | 2018-12-20 21:24:54 +0000 | [diff] [blame] | 32 | // CHECK: ![[PARALLEL_ACCESSES_10]] = !{!"llvm.loop.parallel_accesses", ![[ACCESS_GROUP_2]]} |