| 1 | // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s | FileCheck %s |
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| 2 | |
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| 3 | // Verify that the outer loop has the inner loop's access in its |
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| 4 | // llvm.loop.parallel_accesses property. |
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| 5 | void vectorize_outer_test(int *List, int Length) { |
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| 6 | #pragma clang loop vectorize(assume_safety) interleave(disable) unroll(disable) |
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| 7 | for (int i = 0; i < Length; i += 2) { |
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| 8 | #pragma clang loop unroll(full) |
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| 9 | for (int j = 0; j < 2; j += 1) |
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| 10 | List[i + j] = (i + j) * 2; |
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| 11 | } |
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| 12 | } |
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| 13 | |
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| 14 | // CHECK: %[[MUL:.+]] = mul |
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| 15 | // CHECK: store i32 %[[MUL]], i32* %{{.+}}, !llvm.access.group ![[ACCESS_GROUP_2:[0-9]+]] |
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| 16 | // CHECK: br label %{{.+}}, !llvm.loop ![[INNER_LOOPID:[0-9]+]] |
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| 17 | // CHECK: br label %{{.+}}, !llvm.loop ![[OUTER_LOOPID:[0-9]+]] |
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| 18 | |
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| 19 | // CHECK: ![[ACCESS_GROUP_2]] = distinct !{} |
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| 20 | // CHECK: ![[INNER_LOOPID]] = distinct !{![[INNER_LOOPID]], |
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| 21 | // CHECK: ![[OUTER_LOOPID]] = distinct !{![[OUTER_LOOPID]], {{.*}} ![[PARALLEL_ACCESSES_9:[0-9]+]]} |
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| 22 | // CHECK: ![[PARALLEL_ACCESSES_9]] = !{!"llvm.loop.parallel_accesses", ![[ACCESS_GROUP_2]]} |
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| 23 | |
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