1 // RUN: %clang_cc1 -fopenmp=libiomp5 -emit-llvm %s -o - | FileCheck %s 2 3 void h1(float *c, float *a, float *b, int size) 4 { 5 // CHECK-LABEL: define void @h1 6 int t = 0; 7 #pragma omp simd safelen(16) linear(t) 8 for (int i = 0; i < size; ++i) { 9 c[i] = a[i] * a[i] + b[i] * b[t]; 10 ++t; 11 // do not emit parallel_loop_access metadata due to usage of safelen clause. 12 // CHECK-NOT: store float {{.+}}, float* {{.+}}, align {{.+}}, !llvm.mem.parallel_loop_access {{![0-9]+}} 13 } 14 } 15 16 void h2(float *c, float *a, float *b, int size) 17 { 18 // CHECK-LABEL: define void @h2 19 int t = 0; 20 #pragma omp simd linear(t) 21 for (int i = 0; i < size; ++i) { 22 c[i] = a[i] * a[i] + b[i] * b[t]; 23 ++t; 24 // CHECK: store float {{.+}}, float* {{.+}}, align {{.+}}, !llvm.mem.parallel_loop_access [[LOOP_H2_HEADER:![0-9]+]] 25 } 26 } 27 28 void h3(float *c, float *a, float *b, int size) 29 { 30 // CHECK-LABEL: define void @h3 31 #pragma omp simd 32 for (int i = 0; i < size; ++i) { 33 for (int j = 0; j < size; ++j) { 34 c[j*i] = a[i] * b[j]; 35 } 36 } 37 // do not emit parallel_loop_access for nested loop. 38 // CHECK-NOT: store float {{.+}}, float* {{.+}}, align {{.+}}, !llvm.mem.parallel_loop_access {{![0-9]+}} 39 } 40 41 // Metadata for h1: 42 // CHECK: [[LOOP_H1_HEADER:![0-9]+]] = metadata !{metadata [[LOOP_H1_HEADER]], metadata [[LOOP_WIDTH_16:![0-9]+]], metadata [[LOOP_VEC_ENABLE:![0-9]+]]} 43 // CHECK: [[LOOP_WIDTH_16]] = metadata !{metadata !"llvm.loop.vectorize.width", i32 16} 44 // CHECK: [[LOOP_VEC_ENABLE]] = metadata !{metadata !"llvm.loop.vectorize.enable", i1 true} 45 // 46 // Metadata for h2: 47 // CHECK: [[LOOP_H2_HEADER]] = metadata !{metadata [[LOOP_H2_HEADER]], metadata [[LOOP_VEC_ENABLE]]} 48 // 49 // Metadata for h3: 50 // CHECK: [[LOOP_H3_HEADER:![0-9]+]] = metadata !{metadata [[LOOP_H3_HEADER]], metadata [[LOOP_VEC_ENABLE]]} 51 // 52
