a835f046cd
When offloading was enabled, top-level 'asm' were added to the offloading section, confusing assemblers which did not support the syntax. Additionally, with offloading and -flto, the top-level assembler code did not end up in the host files. As r14-321-g9a41d2cdbcd added top-level 'asm' to one libstdc++ header file, the issue became more apparent, causing fails with nvptx for some C++ testcases. PR libstdc++/109816 gcc/ChangeLog: * lto-cgraph.cc (output_symtab): Guard lto_output_toplevel_asms by '!lto_stream_offload_p'. libgomp/ChangeLog: * testsuite/libgomp.c++/target-map-class-1.C: New test. * testsuite/libgomp.c++/target-map-class-2.C: New test.
98 lines
1.9 KiB
C
98 lines
1.9 KiB
C
/* PR middle-end/109816 */
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/* This variant: without -flto, see target-map-class-2.C for -flto. */
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/* iostream.h adds 'globl _ZSt21ios_base_library_initv' with _GLIBCXX_SYMVER_GNU,
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but it shouldn't end up in the offload assembly but only in the host assembly. */
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/* Example based on sollve_vv's test_target_data_map_classes.cpp; however,
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relevant is only the 'include' and not the actual executable code. */
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#include <iostream>
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#include <omp.h>
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using namespace std;
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#define N 1000
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struct A
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{
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int *h_array;
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int size, sum;
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A (int *array, const int s) : h_array(array), size(s), sum(0) { }
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~A() { h_array = NULL; }
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};
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void
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test_map_tofrom_class_heap ()
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{
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int *array = new int[N];
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A *obj = new A (array, N);
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#pragma omp target map(from: array[:N]) map(tofrom: obj[:1])
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{
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int *tmp_h_array = obj->h_array;
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obj->h_array = array;
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int tmp = 0;
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for (int i = 0; i < N; ++i)
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{
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obj->h_array[i] = 4*i;
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tmp += 3;
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}
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obj->h_array = tmp_h_array;
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obj->sum = tmp;
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}
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for (int i = 0; i < N; ++i)
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if (obj->h_array[i] != 4*i)
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__builtin_abort ();
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if (3*N != obj->sum)
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{
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std::cout << "sum: " << obj->sum << std::endl;
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__builtin_abort ();
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}
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delete obj;
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delete[] array;
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}
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void
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test_map_tofrom_class_stack ()
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{
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int array[N];
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A obj(array, N);
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#pragma omp target map(from: array[:N]) map(tofrom: obj)
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{
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int *tmp_h_array = obj.h_array;
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obj.h_array = array;
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int tmp = 0;
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for (int i = 0; i < N; ++i)
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{
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obj.h_array[i] = 7*i;
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tmp += 5;
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}
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obj.h_array = tmp_h_array;
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obj.sum = tmp;
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}
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for (int i = 0; i < N; ++i)
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if (obj.h_array[i] != 7*i)
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__builtin_abort ();
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if (5*N != obj.sum)
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{
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std::cout << "sum: " << obj.sum << std::endl;
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__builtin_abort ();
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}
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}
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int
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main()
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{
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test_map_tofrom_class_heap();
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test_map_tofrom_class_stack();
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return 0;
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}
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