1 // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s | FileCheck %s 2 3 // Verify while loop is recognized after sequence of pragma clang loop directives. 4 void while_test(int *List, int Length) { 5 // CHECK: define {{.*}} @_Z10while_test 6 int i = 0; 7 8 #pragma clang loop vectorize(enable) 9 #pragma clang loop interleave_count(4) 10 #pragma clang loop vectorize_width(4) 11 #pragma clang loop unroll(enable) 12 while (i < Length) { 13 // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_1:.*]] 14 List[i] = i * 2; 15 i++; 16 } 17 } 18 19 // Verify do loop is recognized after multi-option pragma clang loop directive. 20 void do_test(int *List, int Length) { 21 int i = 0; 22 23 #pragma clang loop vectorize_width(8) interleave_count(4) unroll(disable) 24 do { 25 // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_2:.*]] 26 List[i] = i * 2; 27 i++; 28 } while (i < Length); 29 } 30 31 // Verify for loop is recognized after sequence of pragma clang loop directives. 32 void for_test(int *List, int Length) { 33 #pragma clang loop interleave(enable) 34 #pragma clang loop interleave_count(4) 35 #pragma clang loop unroll_count(8) 36 for (int i = 0; i < Length; i++) { 37 // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_3:.*]] 38 List[i] = i * 2; 39 } 40 } 41 42 // Verify c++11 for range loop is recognized after 43 // sequence of pragma clang loop directives. 44 void for_range_test() { 45 double List[100]; 46 47 #pragma clang loop vectorize_width(2) interleave_count(2) 48 for (int i : List) { 49 // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_4:.*]] 50 List[i] = i; 51 } 52 } 53 54 // Verify disable pragma clang loop directive generates correct metadata 55 void disable_test(int *List, int Length) { 56 #pragma clang loop vectorize(disable) unroll(disable) 57 for (int i = 0; i < Length; i++) { 58 // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_5:.*]] 59 List[i] = i * 2; 60 } 61 } 62 63 #define VECWIDTH 2 64 #define INTCOUNT 2 65 #define UNROLLCOUNT 8 66 67 // Verify defines are correctly resolved in pragma clang loop directive 68 void for_define_test(int *List, int Length, int Value) { 69 #pragma clang loop vectorize_width(VECWIDTH) interleave_count(INTCOUNT) 70 #pragma clang loop unroll_count(UNROLLCOUNT) 71 for (int i = 0; i < Length; i++) { 72 // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_6:.*]] 73 List[i] = i * Value; 74 } 75 } 76 77 // Verify metadata is generated when template is used. 78 template <typename A> 79 void for_template_test(A *List, int Length, A Value) { 80 81 #pragma clang loop vectorize_width(8) interleave_count(8) unroll_count(8) 82 for (int i = 0; i < Length; i++) { 83 // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_7:.*]] 84 List[i] = i * Value; 85 } 86 } 87 88 // Verify define is resolved correctly when template is used. 89 template <typename A> 90 void for_template_define_test(A *List, int Length, A Value) { 91 #pragma clang loop vectorize_width(VECWIDTH) interleave_count(INTCOUNT) 92 #pragma clang loop unroll_count(UNROLLCOUNT) 93 for (int i = 0; i < Length; i++) { 94 // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_8:.*]] 95 List[i] = i * Value; 96 } 97 } 98 99 #undef VECWIDTH 100 #undef INTCOUNT 101 #undef UNROLLCOUNT 102 103 // Use templates defined above. Test verifies metadata is generated correctly. 104 void template_test(double *List, int Length) { 105 double Value = 10; 106 107 for_template_test<double>(List, Length, Value); 108 for_template_define_test<double>(List, Length, Value); 109 } 110 111 // CHECK: ![[LOOP_1]] = metadata !{metadata ![[LOOP_1]], metadata ![[UNROLLENABLE_1:.*]], metadata ![[WIDTH_4:.*]], metadata ![[INTERLEAVE_4:.*]], metadata ![[INTENABLE_1:.*]]} 112 // CHECK: ![[UNROLLENABLE_1]] = metadata !{metadata !"llvm.loop.unroll.enable", i1 true} 113 // CHECK: ![[WIDTH_4]] = metadata !{metadata !"llvm.loop.vectorize.width", i32 4} 114 // CHECK: ![[INTERLEAVE_4]] = metadata !{metadata !"llvm.loop.vectorize.unroll", i32 4} 115 // CHECK: ![[INTENABLE_1]] = metadata !{metadata !"llvm.loop.vectorize.enable", i1 true} 116 // CHECK: ![[LOOP_2]] = metadata !{metadata ![[LOOP_2:.*]], metadata ![[UNROLLENABLE_0:.*]], metadata ![[INTERLEAVE_4:.*]], metadata ![[WIDTH_8:.*]]} 117 // CHECK: ![[UNROLLENABLE_0]] = metadata !{metadata !"llvm.loop.unroll.enable", i1 false} 118 // CHECK: ![[WIDTH_8]] = metadata !{metadata !"llvm.loop.vectorize.width", i32 8} 119 // CHECK: ![[LOOP_3]] = metadata !{metadata ![[LOOP_3]], metadata ![[UNROLL_8:.*]], metadata ![[INTERLEAVE_4:.*]], metadata ![[ENABLE_1:.*]]} 120 // CHECK: ![[UNROLL_8]] = metadata !{metadata !"llvm.loop.unroll.count", i32 8} 121 // CHECK: ![[LOOP_4]] = metadata !{metadata ![[LOOP_4]], metadata ![[INTERLEAVE_2:.*]], metadata ![[WIDTH_2:.*]]} 122 // CHECK: ![[INTERLEAVE_2]] = metadata !{metadata !"llvm.loop.vectorize.unroll", i32 2} 123 // CHECK: ![[WIDTH_2]] = metadata !{metadata !"llvm.loop.vectorize.width", i32 2} 124 // CHECK: ![[LOOP_5]] = metadata !{metadata ![[LOOP_5]], metadata ![[UNROLLENABLE_0:.*]], metadata ![[WIDTH_1:.*]]} 125 // CHECK: ![[WIDTH_1]] = metadata !{metadata !"llvm.loop.vectorize.width", i32 1} 126 // CHECK: ![[LOOP_6]] = metadata !{metadata ![[LOOP_6]], metadata ![[UNROLL_8:.*]], metadata ![[INTERLEAVE_2:.*]], metadata ![[WIDTH_2:.*]]} 127 // CHECK: ![[LOOP_7]] = metadata !{metadata ![[LOOP_7]], metadata ![[UNROLL_8:.*]], metadata ![[INTERLEAVE_8:.*]], metadata ![[WIDTH_8:.*]]} 128 // CHECK: ![[INTERLEAVE_8]] = metadata !{metadata !"llvm.loop.vectorize.unroll", i32 8} 129 // CHECK: ![[LOOP_8]] = metadata !{metadata ![[LOOP_8]], metadata ![[UNROLL_8:.*]], metadata ![[INTERLEAVE_2:.*]], metadata ![[WIDTH_2:.*]]} 130
