| // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s | FileCheck %s |
| |
| // Verify while loop is recognized after sequence of pragma clang loop directives. |
| void while_test(int *List, int Length) { |
| // CHECK: define {{.*}} @_Z10while_test |
| int i = 0; |
| |
| #pragma clang loop vectorize(enable) |
| #pragma clang loop interleave_count(4) |
| #pragma clang loop vectorize_width(4) |
| #pragma clang loop unroll(full) |
| #pragma clang loop distribute(enable) |
| while (i < Length) { |
| // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_1:.*]] |
| List[i] = i * 2; |
| i++; |
| } |
| } |
| |
| // Verify do loop is recognized after multi-option pragma clang loop directive. |
| void do_test(int *List, int Length) { |
| int i = 0; |
| |
| #pragma clang loop vectorize_width(8) interleave_count(4) unroll(disable) distribute(disable) |
| do { |
| // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_2:.*]] |
| List[i] = i * 2; |
| i++; |
| } while (i < Length); |
| } |
| |
| enum struct Tuner : short { Interleave = 4, Unroll = 8 }; |
| |
| // Verify for loop is recognized after sequence of pragma clang loop directives. |
| void for_test(int *List, int Length) { |
| #pragma clang loop interleave(enable) |
| #pragma clang loop interleave_count(static_cast<int>(Tuner::Interleave)) |
| #pragma clang loop unroll_count(static_cast<int>(Tuner::Unroll)) |
| for (int i = 0; i < Length; i++) { |
| // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_3:.*]] |
| List[i] = i * 2; |
| } |
| } |
| |
| // Verify c++11 for range loop is recognized after |
| // sequence of pragma clang loop directives. |
| void for_range_test() { |
| double List[100]; |
| |
| #pragma clang loop vectorize_width(2) interleave_count(2) |
| for (int i : List) { |
| // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_4:.*]] |
| List[i] = i; |
| } |
| } |
| |
| // Verify disable pragma clang loop directive generates correct metadata |
| void disable_test(int *List, int Length) { |
| #pragma clang loop vectorize(disable) unroll(disable) distribute(disable) |
| for (int i = 0; i < Length; i++) { |
| // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_5:.*]] |
| List[i] = i * 2; |
| } |
| } |
| |
| #define VECWIDTH 2 |
| #define INTCOUNT 2 |
| #define UNROLLCOUNT 8 |
| |
| // Verify defines are correctly resolved in pragma clang loop directive |
| void for_define_test(int *List, int Length, int Value) { |
| #pragma clang loop vectorize_width(VECWIDTH) interleave_count(INTCOUNT) |
| #pragma clang loop unroll_count(UNROLLCOUNT) |
| for (int i = 0; i < Length; i++) { |
| // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_6:.*]] |
| List[i] = i * Value; |
| } |
| } |
| |
| // Verify constant expressions are handled correctly. |
| void for_contant_expression_test(int *List, int Length) { |
| #pragma clang loop vectorize_width(1 + 4) |
| for (int i = 0; i < Length; i++) { |
| // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_7:.*]] |
| List[i] = i; |
| } |
| |
| #pragma clang loop vectorize_width(3 + VECWIDTH) |
| for (int i = 0; i < Length; i++) { |
| // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_8:.*]] |
| List[i] += i; |
| } |
| } |
| |
| // Verify metadata is generated when template is used. |
| template <typename A> |
| void for_template_test(A *List, int Length, A Value) { |
| #pragma clang loop vectorize_width(8) interleave_count(8) unroll_count(8) |
| for (int i = 0; i < Length; i++) { |
| // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_9:.*]] |
| List[i] = i * Value; |
| } |
| } |
| |
| // Verify define is resolved correctly when template is used. |
| template <typename A, typename T> |
| void for_template_define_test(A *List, int Length, A Value) { |
| const T VWidth = VECWIDTH; |
| const T ICount = INTCOUNT; |
| const T UCount = UNROLLCOUNT; |
| #pragma clang loop vectorize_width(VWidth) interleave_count(ICount) |
| #pragma clang loop unroll_count(UCount) |
| for (int i = 0; i < Length; i++) { |
| // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_10:.*]] |
| List[i] = i * Value; |
| } |
| } |
| |
| // Verify templates and constant expressions are handled correctly. |
| template <typename A, int V, int I, int U> |
| void for_template_constant_expression_test(A *List, int Length) { |
| #pragma clang loop vectorize_width(V) interleave_count(I) unroll_count(U) |
| for (int i = 0; i < Length; i++) { |
| // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_11:.*]] |
| List[i] = i; |
| } |
| |
| #pragma clang loop vectorize_width(V * 2 + VECWIDTH) interleave_count(I * 2 + INTCOUNT) unroll_count(U * 2 + UNROLLCOUNT) |
| for (int i = 0; i < Length; i++) { |
| // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_12:.*]] |
| List[i] += i; |
| } |
| |
| const int Scale = 4; |
| #pragma clang loop vectorize_width(Scale * V) interleave_count(Scale * I) unroll_count(Scale * U) |
| for (int i = 0; i < Length; i++) { |
| // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_13:.*]] |
| List[i] += i; |
| } |
| |
| #pragma clang loop vectorize_width((Scale * V) + 2) |
| for (int i = 0; i < Length; i++) { |
| // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_14:.*]] |
| List[i] += i; |
| } |
| } |
| |
| #undef VECWIDTH |
| #undef INTCOUNT |
| #undef UNROLLCOUNT |
| |
| // Use templates defined above. Test verifies metadata is generated correctly. |
| void template_test(double *List, int Length) { |
| double Value = 10; |
| |
| for_template_test<double>(List, Length, Value); |
| for_template_define_test<double, int>(List, Length, Value); |
| for_template_constant_expression_test<double, 2, 4, 8>(List, Length); |
| } |
| |
| // Verify for loop is performing fixed width vectorization |
| void for_test_fixed_16(int *List, int Length) { |
| #pragma clang loop vectorize_width(16, fixed) interleave_count(4) unroll(disable) distribute(disable) |
| for (int i = 0; i < Length; i++) { |
| // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_15:.*]] |
| List[i] = i * 2; |
| } |
| } |
| |
| // Verify for loop is performing scalable vectorization |
| void for_test_scalable_16(int *List, int Length) { |
| #pragma clang loop vectorize_width(16, scalable) interleave_count(4) unroll(disable) distribute(disable) |
| for (int i = 0; i < Length; i++) { |
| // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_16:.*]] |
| List[i] = i * 2; |
| } |
| } |
| |
| // Verify for loop is performing fixed width vectorization |
| void for_test_fixed(int *List, int Length) { |
| #pragma clang loop vectorize_width(fixed) interleave_count(4) unroll(disable) distribute(disable) |
| for (int i = 0; i < Length; i++) { |
| // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_17:.*]] |
| List[i] = i * 2; |
| } |
| } |
| |
| // Verify for loop is performing scalable vectorization |
| void for_test_scalable(int *List, int Length) { |
| #pragma clang loop vectorize_width(scalable) interleave_count(4) unroll(disable) distribute(disable) |
| for (int i = 0; i < Length; i++) { |
| // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_18:.*]] |
| List[i] = i * 2; |
| } |
| } |
| |
| // Verify for loop is performing scalable vectorization |
| void for_test_scalable_1(int *List, int Length) { |
| #pragma clang loop vectorize_width(1, scalable) interleave_count(4) unroll(disable) distribute(disable) |
| for (int i = 0; i < Length; i++) { |
| // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_19:.*]] |
| List[i] = i * 2; |
| } |
| } |
| |
| // CHECK: ![[LOOP_1]] = distinct !{![[LOOP_1]], [[MP:![0-9]+]], ![[UNROLL_FULL:.*]]} |
| // CHECK: ![[UNROLL_FULL]] = !{!"llvm.loop.unroll.full"} |
| |
| // CHECK: ![[LOOP_2]] = distinct !{![[LOOP_2]], [[MP]], ![[UNROLL_DISABLE:.*]], ![[DISTRIBUTE_DISABLE:.*]], ![[WIDTH_8:.*]], ![[FIXED_VEC:.*]], ![[INTERLEAVE_4:.*]], ![[VECTORIZE_ENABLE:.*]]} |
| // CHECK: ![[UNROLL_DISABLE]] = !{!"llvm.loop.unroll.disable"} |
| // CHECK: ![[DISTRIBUTE_DISABLE]] = !{!"llvm.loop.distribute.enable", i1 false} |
| // CHECK: ![[WIDTH_8]] = !{!"llvm.loop.vectorize.width", i32 8} |
| // CHECK: ![[FIXED_VEC]] = !{!"llvm.loop.vectorize.scalable.enable", i1 false} |
| // CHECK: ![[INTERLEAVE_4]] = !{!"llvm.loop.interleave.count", i32 4} |
| // CHECK: ![[VECTORIZE_ENABLE]] = !{!"llvm.loop.vectorize.enable", i1 true} |
| |
| // CHECK: ![[LOOP_3]] = distinct !{![[LOOP_3]], [[MP]], ![[INTERLEAVE_4:.*]], ![[VECTORIZE_ENABLE]], ![[FOLLOWUP_VECTOR_3:.*]]} |
| // CHECK: ![[FOLLOWUP_VECTOR_3]] = !{!"llvm.loop.vectorize.followup_all", ![[AFTER_VECTOR_3:.*]]} |
| // CHECK: ![[AFTER_VECTOR_3]] = distinct !{![[AFTER_VECTOR_3]], [[MP]], ![[ISVECTORIZED:.*]], ![[UNROLL_8:.*]]} |
| // CHECK: ![[ISVECTORIZED]] = !{!"llvm.loop.isvectorized"} |
| // CHECK: ![[UNROLL_8]] = !{!"llvm.loop.unroll.count", i32 8} |
| |
| // CHECK: ![[LOOP_4]] = distinct !{![[LOOP_4]], ![[WIDTH_2:.*]], ![[FIXED_VEC]], ![[INTERLEAVE_2:.*]], ![[VECTORIZE_ENABLE]]} |
| // CHECK: ![[WIDTH_2]] = !{!"llvm.loop.vectorize.width", i32 2} |
| // CHECK: ![[INTERLEAVE_2]] = !{!"llvm.loop.interleave.count", i32 2} |
| |
| // CHECK: ![[LOOP_5]] = distinct !{![[LOOP_5]], ![[UNROLL_DISABLE:.*]], ![[DISTRIBUTE_DISABLE:.*]], ![[WIDTH_1:.*]]} |
| // CHECK: ![[WIDTH_1]] = !{!"llvm.loop.vectorize.width", i32 1} |
| |
| // CHECK: ![[LOOP_6]] = distinct !{![[LOOP_6]], [[MP]], ![[WIDTH_2:.*]], ![[FIXED_VEC]], ![[INTERLEAVE_2:.*]], ![[FOLLOWUP_VECTOR_6:.*]]} |
| // CHECK: ![[FOLLOWUP_VECTOR_6]] = !{!"llvm.loop.vectorize.followup_all", ![[AFTER_VECTOR_6:.*]]} |
| // CHECK: ![[AFTER_VECTOR_6]] = distinct !{![[AFTER_VECTOR_6]], ![[ISVECTORIZED:.*]], ![[UNROLL_8:.*]]} |
| |
| // CHECK: ![[LOOP_7]] = distinct !{![[LOOP_7]], [[MP]], ![[WIDTH_5:.*]], ![[FIXED_VEC]], ![[VECTORIZE_ENABLE]]} |
| // CHECK: ![[WIDTH_5]] = !{!"llvm.loop.vectorize.width", i32 5} |
| |
| // CHECK: ![[LOOP_8]] = distinct !{![[LOOP_8]], [[MP]], ![[WIDTH_5:.*]], ![[FIXED_VEC]], ![[VECTORIZE_ENABLE]]} |
| |
| // CHECK: ![[LOOP_9]] = distinct !{![[LOOP_9]], ![[WIDTH_8:.*]], ![[FIXED_VEC]], ![[INTERLEAVE_8:.*]], ![[FOLLOWUP_VECTOR_9:.*]]} |
| // CHECK: ![[FOLLOWUP_VECTOR_9]] = !{!"llvm.loop.vectorize.followup_all", ![[AFTER_VECTOR_9:.*]]} |
| // CHECK: ![[AFTER_VECTOR_9]] = distinct !{![[AFTER_VECTOR_9]], ![[ISVECTORIZED:.*]], ![[UNROLL_8:.*]]} |
| |
| // CHECK: ![[LOOP_10]] = distinct !{![[LOOP_10]], ![[WIDTH_2:.*]], ![[FIXED_VEC]], ![[INTERLEAVE_2:.*]], ![[FOLLOWUP_VECTOR_10:.*]]} |
| // CHECK: ![[FOLLOWUP_VECTOR_10]] = !{!"llvm.loop.vectorize.followup_all", ![[AFTER_VECTOR_10:.*]]} |
| // CHECK: ![[AFTER_VECTOR_10]] = distinct !{![[AFTER_VECTOR_10]], ![[ISVECTORIZED:.*]], ![[UNROLL_8:.*]]} |
| |
| // CHECK: ![[LOOP_11]] = distinct !{![[LOOP_11]], ![[WIDTH_2:.*]], ![[FIXED_VEC]], ![[INTERLEAVE_4:.*]], ![[FOLLOWUP_VECTOR_11:.*]]} |
| // CHECK: ![[FOLLOWUP_VECTOR_11]] = !{!"llvm.loop.vectorize.followup_all", ![[AFTER_VECTOR_11:.*]]} |
| // CHECK: ![[AFTER_VECTOR_11]] = distinct !{![[AFTER_VECTOR_11]], ![[ISVECTORIZED:.*]], ![[UNROLL_8:.*]]} |
| |
| // CHECK: ![[LOOP_12]] = distinct !{![[LOOP_12]], ![[WIDTH_6:.*]], ![[FIXED_VEC]], ![[INTERLEAVE_10:.*]], ![[FOLLOWUP_VECTOR_12:.*]]} |
| // CHECK: ![[FOLLOWUP_VECTOR_12]] = !{!"llvm.loop.vectorize.followup_all", ![[AFTER_VECTOR_12:.*]]} |
| // CHECK: ![[AFTER_VECTOR_12]] = distinct !{![[AFTER_VECTOR_12]], ![[ISVECTORIZED:.*]], ![[UNROLL_24:.*]]} |
| // CHECK: ![[UNROLL_24]] = !{!"llvm.loop.unroll.count", i32 24} |
| |
| // CHECK: ![[LOOP_13]] = distinct !{![[LOOP_13]], ![[WIDTH_8:.*]], ![[INTERLEAVE_16:.*]], ![[VECTORIZE_ENABLE]], ![[FOLLOWUP_VECTOR_13:.*]]} |
| // CHECK: ![[INTERLEAVE_16]] = !{!"llvm.loop.interleave.count", i32 16} |
| // CHECK: ![[FOLLOWUP_VECTOR_13]] = !{!"llvm.loop.vectorize.followup_all", ![[AFTER_VECTOR_13:.*]]} |
| // CHECK: ![[AFTER_VECTOR_13]] = distinct !{![[AFTER_VECTOR_13]], ![[ISVECTORIZED:.*]], ![[UNROLL_32:.*]]} |
| // CHECK: ![[UNROLL_32]] = !{!"llvm.loop.unroll.count", i32 32} |
| |
| // CHECK: ![[LOOP_14]] = distinct !{![[LOOP_14]], [[MP]], ![[WIDTH_10:.*]], ![[FIXED_VEC]], ![[VECTORIZE_ENABLE]]} |
| // CHECK: ![[WIDTH_10]] = !{!"llvm.loop.vectorize.width", i32 10} |
| |
| // CHECK: ![[LOOP_15]] = distinct !{![[LOOP_15]], ![[UNROLL_DISABLE:.*]], ![[DISTRIBUTE_DISABLE:.*]], ![[WIDTH_16:.*]], ![[FIXED_VEC]], ![[INTERLEAVE_4:.*]], ![[VECTORIZE_ENABLE:.*]]} |
| // CHECK: ![[WIDTH_16]] = !{!"llvm.loop.vectorize.width", i32 16} |
| |
| // CHECK: ![[LOOP_16]] = distinct !{![[LOOP_16]], ![[UNROLL_DISABLE:.*]], ![[DISTRIBUTE_DISABLE:.*]], ![[WIDTH_16]], ![[SCALABLE_VEC:.*]], ![[INTERLEAVE_4:.*]], ![[VECTORIZE_ENABLE:.*]]} |
| // CHECK: ![[SCALABLE_VEC]] = !{!"llvm.loop.vectorize.scalable.enable", i1 true} |
| |
| // CHECK: ![[LOOP_17]] = distinct !{![[LOOP_17]], ![[UNROLL_DISABLE:.*]], ![[DISTRIBUTE_DISABLE:.*]], ![[FIXED_VEC]], ![[INTERLEAVE_4:.*]], ![[VECTORIZE_ENABLE:.*]]} |
| // CHECK: ![[LOOP_18]] = distinct !{![[LOOP_18]], ![[UNROLL_DISABLE:.*]], ![[DISTRIBUTE_DISABLE:.*]], ![[SCALABLE_VEC]], ![[INTERLEAVE_4:.*]], ![[VECTORIZE_ENABLE:.*]]} |
| // CHECK: ![[LOOP_19]] = distinct !{![[LOOP_19]], ![[UNROLL_DISABLE:.*]], ![[DISTRIBUTE_DISABLE:.*]], ![[WIDTH_1]], ![[SCALABLE_VEC]], ![[INTERLEAVE_4:.*]], ![[VECTORIZE_ENABLE:.*]]} |
