clang/test/OpenMP/nvptx_NRVO_variable.cpp

   1 // Test target codegen - host bc file has to be created first.
   2 // RUN: %clang_cc1 -verify -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=nvptx64-nvidia-cuda -emit-llvm-bc %s -o %t-ppc-host.bc
   3 // RUN: %clang_cc1 -verify -fopenmp -x c++ -triple nvptx64-unknown-unknown -fopenmp-targets=nvptx64-nvidia-cuda -emit-llvm %s -fopenmp-is-target-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o - | FileCheck %s
   4 // expected-no-diagnostics
   5 #ifndef HEADER
   6 #define HEADER
   7
   8 struct S {
   9   int a;
  10   S() : a(1) {}
  11 };
  12
  13 #pragma omp declare target
  14 void bar(S &);
  15 // CHECK-LABEL: foo
  16 S foo() {
  17   // CHECK: [[RETVAL:%.+]] = alloca %struct.S,
  18   S s;
  19   // CHECK: call void @{{.+}}bar{{.+}}(ptr {{.*}}[[S_REF:%.+]])
  20   bar(s);
  21   // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr {{.*}}[[RETVAL]], ptr {{.*}}[[S_REF]], i64 4, i1 false)
  22   // CHECK: [[VAL:%.+]] = load %struct.S, ptr [[RETVAL]],
  23   // CHECK: ret %struct.S [[VAL]]
  24   return s;
  25 }
  26 #pragma omp end declare target
  27
  28 #endif