23 lines
1.0 KiB
C++
23 lines
1.0 KiB
C++
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// RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s | FileCheck %s
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// Verify that the outer loop has the inner loop's access in its
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// llvm.loop.parallel_accesses property.
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void vectorize_outer_test(int *List, int Length) {
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#pragma clang loop vectorize(assume_safety) interleave(disable) unroll(disable)
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for (int i = 0; i < Length; i += 2) {
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#pragma clang loop unroll(full)
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for (int j = 0; j < 2; j += 1)
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List[i + j] = (i + j) * 2;
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}
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}
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// CHECK: %[[MUL:.+]] = mul
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// CHECK: store i32 %[[MUL]], i32* %{{.+}}, !llvm.access.group ![[ACCESS_GROUP_2:[0-9]+]]
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// CHECK: br label %{{.+}}, !llvm.loop ![[INNER_LOOPID:[0-9]+]]
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// CHECK: br label %{{.+}}, !llvm.loop ![[OUTER_LOOPID:[0-9]+]]
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// CHECK: ![[ACCESS_GROUP_2]] = distinct !{}
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// CHECK: ![[INNER_LOOPID]] = distinct !{![[INNER_LOOPID]],
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// CHECK: ![[OUTER_LOOPID]] = distinct !{![[OUTER_LOOPID]], [[MP:![0-9]+]], ![[PARALLEL_ACCESSES_9:[0-9]+]]
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// CHECK: ![[PARALLEL_ACCESSES_9]] = !{!"llvm.loop.parallel_accesses", ![[ACCESS_GROUP_2]]}
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