diff options
Diffstat (limited to 'clang/test/OpenMP/nvptx_data_sharing.cpp')
| -rw-r--r-- | clang/test/OpenMP/nvptx_data_sharing.cpp | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/clang/test/OpenMP/nvptx_data_sharing.cpp b/clang/test/OpenMP/nvptx_data_sharing.cpp new file mode 100644 index 00000000000..5e9ca2d2eaa --- /dev/null +++ b/clang/test/OpenMP/nvptx_data_sharing.cpp @@ -0,0 +1,91 @@ +// Test device global memory data sharing codegen. +///==========================================================================/// + +// 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 +// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple nvptx64-unknown-unknown -fopenmp-targets=nvptx64-nvidia-cuda -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o - | FileCheck %s --check-prefix CK1 + +// expected-no-diagnostics + +#ifndef HEADER +#define HEADER + +void test_ds(){ + #pragma omp target + { + int a = 10; + #pragma omp parallel + { + a = 1000; + } + int b = 100; + #pragma omp parallel + { + b = a + 10000; + } + } +} + +/// ========= In the kernel function ========= /// + +// CK1: {{.*}}define void @__omp_offloading{{.*}}test_ds{{.*}}() +// CK1: [[SHAREDARGS1:%.+]] = alloca i8** +// CK1: [[SHAREDARGS2:%.+]] = alloca i8** +// CK1: call void @__kmpc_kernel_init +// CK1: call void @__kmpc_data_sharing_init_stack +// CK1: [[GLOBALSTACK:%.+]] = call i8* @__kmpc_data_sharing_push_stack(i64 8, i16 0) +// CK1: [[GLOBALSTACK2:%.+]] = bitcast i8* [[GLOBALSTACK]] to %struct._globalized_locals_ty* +// CK1: [[A:%.+]] = getelementptr inbounds %struct._globalized_locals_ty, %struct._globalized_locals_ty* [[GLOBALSTACK2]], i32 0, i32 0 +// CK1: [[B:%.+]] = getelementptr inbounds %struct._globalized_locals_ty, %struct._globalized_locals_ty* [[GLOBALSTACK2]], i32 0, i32 1 +// CK1: store i32 10, i32* [[A]] +// CK1: call void @__kmpc_kernel_prepare_parallel({{.*}}, i16 1) +// CK1: call void @__kmpc_begin_sharing_variables(i8*** [[SHAREDARGS1]], i64 1) +// CK1: [[SHARGSTMP1:%.+]] = load i8**, i8*** [[SHAREDARGS1]] +// CK1: [[SHARGSTMP2:%.+]] = getelementptr inbounds i8*, i8** [[SHARGSTMP1]], i64 0 +// CK1: [[SHAREDVAR:%.+]] = bitcast i32* [[A]] to i8* +// CK1: store i8* [[SHAREDVAR]], i8** [[SHARGSTMP2]] +// CK1: call void @llvm.nvvm.barrier0() +// CK1: call void @llvm.nvvm.barrier0() +// CK1: call void @__kmpc_end_sharing_variables() +// CK1: store i32 100, i32* [[B]] +// CK1: call void @__kmpc_kernel_prepare_parallel({{.*}}, i16 1) +// CK1: call void @__kmpc_begin_sharing_variables(i8*** [[SHAREDARGS2]], i64 2) +// CK1: [[SHARGSTMP3:%.+]] = load i8**, i8*** [[SHAREDARGS2]] +// CK1: [[SHARGSTMP4:%.+]] = getelementptr inbounds i8*, i8** [[SHARGSTMP3]], i64 0 +// CK1: [[SHAREDVAR1:%.+]] = bitcast i32* [[B]] to i8* +// CK1: store i8* [[SHAREDVAR1]], i8** [[SHARGSTMP4]] +// CK1: [[SHARGSTMP12:%.+]] = getelementptr inbounds i8*, i8** [[SHARGSTMP3]], i64 1 +// CK1: [[SHAREDVAR2:%.+]] = bitcast i32* [[A]] to i8* +// CK1: store i8* [[SHAREDVAR2]], i8** [[SHARGSTMP12]] +// CK1: call void @llvm.nvvm.barrier0() +// CK1: call void @llvm.nvvm.barrier0() +// CK1: call void @__kmpc_end_sharing_variables() +// CK1: call void @__kmpc_data_sharing_pop_stack(i8* [[GLOBALSTACK]]) +// CK1: call void @__kmpc_kernel_deinit(i16 1) + +/// ========= In the data sharing wrapper function ========= /// + +// CK1: {{.*}}define internal void @__omp_outlined{{.*}}wrapper({{.*}}) +// CK1: [[SHAREDARGS4:%.+]] = alloca i8** +// CK1: call void @__kmpc_get_shared_variables(i8*** [[SHAREDARGS4]]) +// CK1: [[SHARGSTMP13:%.+]] = load i8**, i8*** [[SHAREDARGS4]] +// CK1: [[SHARGSTMP14:%.+]] = getelementptr inbounds i8*, i8** [[SHARGSTMP13]], i64 0 +// CK1: [[SHARGSTMP15:%.+]] = bitcast i8** [[SHARGSTMP14]] to i32** +// CK1: [[SHARGSTMP16:%.+]] = load i32*, i32** [[SHARGSTMP15]] +// CK1: call void @__omp_outlined__{{.*}}({{.*}}, i32* [[SHARGSTMP16]]) + +/// ========= In the data sharing wrapper function ========= /// + +// CK1: {{.*}}define internal void @__omp_outlined{{.*}}wrapper({{.*}}) +// CK1: [[SHAREDARGS3:%.+]] = alloca i8** +// CK1: call void @__kmpc_get_shared_variables(i8*** [[SHAREDARGS3]]) +// CK1: [[SHARGSTMP5:%.+]] = load i8**, i8*** [[SHAREDARGS3]] +// CK1: [[SHARGSTMP6:%.+]] = getelementptr inbounds i8*, i8** [[SHARGSTMP5]], i64 0 +// CK1: [[SHARGSTMP7:%.+]] = bitcast i8** [[SHARGSTMP6]] to i32** +// CK1: [[SHARGSTMP8:%.+]] = load i32*, i32** [[SHARGSTMP7]] +// CK1: [[SHARGSTMP9:%.+]] = getelementptr inbounds i8*, i8** [[SHARGSTMP5]], i64 1 +// CK1: [[SHARGSTMP10:%.+]] = bitcast i8** [[SHARGSTMP9]] to i32** +// CK1: [[SHARGSTMP11:%.+]] = load i32*, i32** [[SHARGSTMP10]] +// CK1: call void @__omp_outlined__{{.*}}({{.*}}, i32* [[SHARGSTMP8]], i32* [[SHARGSTMP11]]) + +#endif + |
