| // RUN: %clang_cc1 -fopenmp=libiomp5 -emit-llvm %s -o - | FileCheck %s |
| |
| void h1(float *c, float *a, float *b, int size) |
| { |
| // CHECK-LABEL: define void @h1 |
| int t = 0; |
| #pragma omp simd safelen(16) linear(t) |
| for (int i = 0; i < size; ++i) { |
| c[i] = a[i] * a[i] + b[i] * b[t]; |
| ++t; |
| // do not emit parallel_loop_access metadata due to usage of safelen clause. |
| // CHECK-NOT: store float {{.+}}, float* {{.+}}, align {{.+}}, !llvm.mem.parallel_loop_access {{![0-9]+}} |
| } |
| } |
| |
| void h2(float *c, float *a, float *b, int size) |
| { |
| // CHECK-LABEL: define void @h2 |
| int t = 0; |
| #pragma omp simd linear(t) |
| for (int i = 0; i < size; ++i) { |
| c[i] = a[i] * a[i] + b[i] * b[t]; |
| ++t; |
| // CHECK: store float {{.+}}, float* {{.+}}, align {{.+}}, !llvm.mem.parallel_loop_access [[LOOP_H2_HEADER:![0-9]+]] |
| } |
| } |
| |
| void h3(float *c, float *a, float *b, int size) |
| { |
| // CHECK-LABEL: define void @h3 |
| #pragma omp simd |
| for (int i = 0; i < size; ++i) { |
| for (int j = 0; j < size; ++j) { |
| c[j*i] = a[i] * b[j]; |
| } |
| } |
| // do not emit parallel_loop_access for nested loop. |
| // CHECK-NOT: store float {{.+}}, float* {{.+}}, align {{.+}}, !llvm.mem.parallel_loop_access {{![0-9]+}} |
| } |
| |
| // Metadata for h1: |
| // CHECK: [[LOOP_H1_HEADER:![0-9]+]] = metadata !{metadata [[LOOP_H1_HEADER]], metadata [[LOOP_WIDTH_16:![0-9]+]], metadata [[LOOP_VEC_ENABLE:![0-9]+]]} |
| // CHECK: [[LOOP_WIDTH_16]] = metadata !{metadata !"llvm.loop.vectorize.width", i32 16} |
| // CHECK: [[LOOP_VEC_ENABLE]] = metadata !{metadata !"llvm.loop.vectorize.enable", i1 true} |
| // |
| // Metadata for h2: |
| // CHECK: [[LOOP_H2_HEADER]] = metadata !{metadata [[LOOP_H2_HEADER]], metadata [[LOOP_VEC_ENABLE]]} |
| // |
| // Metadata for h3: |
| // CHECK: [[LOOP_H3_HEADER:![0-9]+]] = metadata !{metadata [[LOOP_H3_HEADER]], metadata [[LOOP_VEC_ENABLE]]} |
| // |