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. 4void 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. 20void 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. 32void 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. 44void 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 55void 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 68void 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. 78template <typename A> 79void 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. 89template <typename A> 90void 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. 104void 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