xref: /minix3/external/bsd/llvm/dist/clang/test/OpenMP/simd_metadata.c (revision 0a6a1f1d05b60e214de2f05a7310ddd1f0e590e7)

// RUN: %clang_cc1 -fopenmp=libiomp5 -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck %s
// RUN: %clang_cc1 -fopenmp=libiomp5 -triple powerpc64-unknown-unknown -emit-llvm %s -o - | FileCheck %s

void h1(float *c, float *a, double b[], int size)
{
// CHECK-LABEL: define void @h1
  int t = 0;
#pragma omp simd safelen(16) linear(t) aligned(c:32) aligned(a,b)
// CHECK:         [[C_PTRINT:%.+]] = ptrtoint
// CHECK-NEXT:    [[C_MASKEDPTR:%.+]] = and i{{[0-9]+}} [[C_PTRINT]], 31
// CHECK-NEXT:    [[C_MASKCOND:%.+]] = icmp eq i{{[0-9]+}} [[C_MASKEDPTR]], 0
// CHECK-NEXT:    call void @llvm.assume(i1 [[C_MASKCOND]])
// CHECK:         [[A_PTRINT:%.+]] = ptrtoint
// CHECK-NEXT:    [[A_MASKEDPTR:%.+]] = and i{{[0-9]+}} [[A_PTRINT]], 15
// CHECK-NEXT:    [[A_MASKCOND:%.+]] = icmp eq i{{[0-9]+}} [[A_MASKEDPTR]], 0
// CHECK-NEXT:    call void @llvm.assume(i1 [[A_MASKCOND]])
// CHECK:         [[B_PTRINT:%.+]] = ptrtoint
// CHECK-NEXT:    [[B_MASKEDPTR:%.+]] = and i{{[0-9]+}} [[B_PTRINT]], 15
// CHECK-NEXT:    [[B_MASKCOND:%.+]] = icmp eq i{{[0-9]+}} [[B_MASKEDPTR]], 0
// CHECK-NEXT:    call void @llvm.assume(i1 [[B_MASKCOND]])
  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]+]] = distinct !{[[LOOP_H1_HEADER]], [[LOOP_WIDTH_16:![0-9]+]], [[LOOP_VEC_ENABLE:![0-9]+]]}
// CHECK: [[LOOP_WIDTH_16]] = !{!"llvm.loop.vectorize.width", i32 16}
// CHECK: [[LOOP_VEC_ENABLE]] = !{!"llvm.loop.vectorize.enable", i1 true}
//
// Metadata for h2:
// CHECK: [[LOOP_H2_HEADER]] = distinct !{[[LOOP_H2_HEADER]], [[LOOP_VEC_ENABLE]]}
//
// Metadata for h3:
// CHECK: [[LOOP_H3_HEADER:![0-9]+]] = distinct !{[[LOOP_H3_HEADER]], [[LOOP_VEC_ENABLE]]}
//