1 // REQUIRES: x86-registered-target 2 // REQUIRES: amdgpu-registered-target 3 // UNSUPPORTED: -aix 4 5 // See the steps to create a fat archive are given at the end of the file. 6 7 // Given a FatArchive, clang-offload-bundler should be called to create a 8 // device specific archive, which should be passed to llvm-link. 9 // RUN: %clang -O2 -### -fopenmp -fopenmp-targets=amdgcn-amd-amdhsa -Xopenmp-target=amdgcn-amd-amdhsa -march=gfx906 %s -L%S/Inputs/openmp_static_device_link -lFatArchive 2>&1 | FileCheck %s 10 // CHECK: clang{{.*}}"-cc1"{{.*}}"-triple" "amdgcn-amd-amdhsa"{{.*}}"-emit-llvm-bc"{{.*}}"-target-cpu" "[[GPU:gfx[0-9]+]]"{{.*}}"-o" "[[HOSTBC:.*.bc]]" "-x" "c++"{{.*}}.cpp 11 // CHECK: clang-offload-bundler" "-unbundle" "-type=a" "-input={{.*}}/Inputs/openmp_static_device_link/libFatArchive.a" "-targets=openmp-amdgcn-amd-amdhsa-[[GPU]]" "-output=[[DEVICESPECIFICARCHIVE:.*.a]]" "-allow-missing-bundles" 12 // CHECK: llvm-link{{.*}}"[[HOSTBC]]" "[[DEVICESPECIFICARCHIVE]]" "-o" "{{.*}}-[[GPU]]-linked-{{.*}}.bc" 13 // expected-no-diagnostics 14 15 #ifndef HEADER 16 #define HEADER 17 18 #define N 10 19 20 #pragma omp declare target 21 // Functions defined in Fat Archive. 22 extern "C" void func_present(float *, float *, unsigned); 23 24 #ifdef MISSING 25 // Function not defined in the fat archive. 26 extern "C" void func_missing(float *, float *, unsigned); 27 #endif 28 29 #pragma omp end declare target 30 31 int main() { 32 float in[N], out[N], sum = 0; 33 unsigned i; 34 35 #pragma omp parallel for 36 for (i = 0; i < N; ++i) { 37 in[i] = i; 38 } 39 40 func_present(in, out, N); // Returns out[i] = a[i] * 0 41 42 #ifdef MISSING 43 func_missing(in, out, N); // Should throw an error here 44 #endif 45 46 #pragma omp parallel for reduction(+ \ 47 : sum) 48 for (i = 0; i < N; ++i) 49 sum += out[i]; 50 51 if (!sum) 52 return 0; 53 return sum; 54 } 55 56 #endif 57 58 /*********************************************** 59 Steps to create Fat Archive (libFatArchive.a) 60 ************************************************ 61 ***************** File: func_1.c *************** 62 void func_present(float* in, float* out, unsigned n){ 63 unsigned i; 64 #pragma omp target teams distribute parallel for map(to: in[0:n]) map(from: out[0:n]) 65 for(i=0; i<n; ++i){ 66 out[i] = in[i] * 0; 67 } 68 } 69 ************************************************* 70 1. Compile source file(s) to generate object file(s) 71 clang -O2 -fopenmp -fopenmp-targets=amdgcn-amd-amdhsa -Xopenmp-target=amdgcn-amd-amdhsa -march=gfx906 -c func_1.c -o func_1_gfx906.o 72 clang -O2 -fopenmp -fopenmp-targets=amdgcn-amd-amdhsa -Xopenmp-target=amdgcn-amd-amdhsa -march=gfx908 -c func_1.c -o func_1_gfx908.o 73 clang -O2 -fopenmp -fopenmp-targets=amdgcn-amd-amdhsa -Xopenmp-target=amdgcn-amd-amdhsa -march=gfx906 -c func_2.c -o func_2_gfx906.o 74 clang -O2 -fopenmp -fopenmp-targets=amdgcn-amd-amdhsa -Xopenmp-target=amdgcn-amd-amdhsa -march=gfx908 -c func_2.c -o func_2_gfx908.o 75 clang -O2 -fopenmp -fopenmp-targets=nvptx64 -c func_1.c -o func_1_nvptx.o 76 clang -O2 -fopenmp -fopenmp-targets=nvptx64 -c func_2.c -o func_2_nvptx.o 77 78 2. Create a fat archive by combining all the object file(s) 79 llvm-ar cr libFatArchive.a func_1_gfx906.o func_1_gfx908.o func_2_gfx906.o func_2_gfx908.o func_1_nvptx.o func_2_nvptx.o 80 ************************************************/ 81