clang/test/OpenMP/declare_target_only_one_side_compilation.cpp

   1 // RUN: %clang_cc1 -verify -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix HOST
   2 // RUN: %clang_cc1 -verify -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm-bc %s -o %t-ppc-host.bc
   3 // RUN: %clang_cc1 -verify -fopenmp -x c++ -triple powerpc64le-unknown-unknown -emit-llvm %s -fopenmp-is-target-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o - | FileCheck %s --check-prefix DEVICE
   4
   5 // RUN: %clang_cc1 -verify -fopenmp -x c++ -triple i386-pc-linux-gnu -fopenmp-targets=i386-pc-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix HOST
   6 // RUN: %clang_cc1 -verify -fopenmp -x c++ -triple i386-pc-linux-gnu -fopenmp-targets=i386-pc-linux-gnu -emit-llvm-bc %s -o %t-i386-host.bc
   7 // RUN: %clang_cc1 -verify -fopenmp -x c++ -triple i386-pc-linux-gnu -emit-llvm %s -fopenmp-is-target-device -fopenmp-host-ir-file-path %t-i386-host.bc -o - | FileCheck %s --check-prefix DEVICE
   8
   9 // RUN: %clang_cc1 -verify -fopenmp -x c++ -triple x86_64-unknown-linux-gnu -fopenmp-targets=x86_64-unknown-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix HOST
  10 // RUN: %clang_cc1 -verify -fopenmp -x c++ -triple x86_64-unknown-linux-gnu -fopenmp-targets=x86_64-unknown-linux-gnu -emit-llvm-bc %s -o %t-x86_64-host.bc
  11 // RUN: %clang_cc1 -verify -fopenmp -x c++ -triple x86_64-unknown-linux-gnu -emit-llvm %s -fopenmp-is-target-device -fopenmp-host-ir-file-path %t-x86_64-host.bc -o - | FileCheck %s --check-prefix DEVICE
  12
  13 // expected-no-diagnostics
  14
  15 #pragma omp declare target
  16 #pragma omp begin declare variant match(device = {kind(nohost)})
  17 int G1;
  18 static int G2;
  19 #pragma omp end declare variant
  20 #pragma omp end declare target
  21
  22 #pragma omp begin declare target device_type(nohost)
  23 int G3;
  24 static int G4;
  25 #pragma omp end declare target
  26
  27 #pragma omp declare target
  28 int G5;
  29 static int G6;
  30 #pragma omp end declare target
  31
  32 #pragma omp declare target to(G5, G6) device_type(nohost)
  33
  34 #pragma omp begin declare target device_type(host)
  35 int G7;
  36 static int G8;
  37 #pragma omp end declare target
  38
  39 #pragma omp declare target
  40 int G9;
  41 static int G10;
  42 #pragma omp end declare target
  43
  44 int G11;
  45 static int G12;
  46 #pragma omp declare target to(G9, G10, G11, G12) device_type(host)
  47
  48 // TODO: The code below should probably work but it is not 100% clear.
  49 #if 0
  50 #pragma omp declare target
  51 #pragma omp begin declare variant match(device = {kind(host)})
  52 int GX;
  53 static int GY;
  54 #pragma omp end declare variant
  55 #pragma omp end declare target
  56 #endif
  57
  58 // TODO: It is odd, probably wrong, that we don't mangle all variables.
  59
  60 // DEVICE-DAG: @G1 = {{.*}}global i32 0, align 4
  61 // DEVICE-DAG: @_ZL2G2 = internal {{.*}}global i32 0, align 4
  62 // DEVICE-DAG: @G3 = {{.*}}global i32 0, align 4
  63 // DEVICE-DAG: @_ZL2G4 = internal {{.*}}global i32 0, align 4
  64 // DEVICE-DAG: @G5 = {{.*}}global i32 0, align 4
  65 // DEVICE-DAG: @_ZL2G6 = internal {{.*}}global i32 0, align 4
  66 // DEVICE-NOT: ref
  67 // DEVICE-NOT: llvm.used
  68 // DEVICE-NOT: omp_offload
  69
  70 // HOST-DAG: @G7 = global i32 0, align 4
  71 // HOST-DAG: @_ZL2G8 = internal global i32 0, align 4
  72 // HOST-DAG: @G9 = global i32 0, align 4
  73 // HOST-DAG: @_ZL3G10 = internal global i32 0, align 4
  74 // HOST-DAG: @G11 = global i32 0, align 4
  75 // HOST-DAG: @_ZL3G12 = internal global i32 0, align 4