6b43f556f3
Reverse offload requests at least -misa=sm_35; with this patch, a warning instead of an error is shown, still permitting reverse offload for all other configured device types. This is achieved by not calling GOMP_offload_register_ver (and stopping generating pointless 'static const char' variables, once known.) The tool_name as progname changes adds "nvptx " and "gcn " to the "mkoffload: warning/error:" diagnostic. gcc/ChangeLog: * config/nvptx/mkoffload.cc (process): Replace a fatal_error by a warning + not enabling offloading if -misa=sm_30 prevents reverse offload. (main): Use tool_name as progname for diagnostic. * config/gcn/mkoffload.cc (main): Likewise. libgomp/ChangeLog: * libgomp.texi (Offload-Target Specifics: nvptx): Document that reverse offload requires >= -march=sm_35. * testsuite/libgomp.c-c++-common/requires-4.c: Build for nvptx with -misa=sm_35. * testsuite/libgomp.c-c++-common/requires-5.c: Likewise. * testsuite/libgomp.c-c++-common/requires-6.c: Likewise. * testsuite/libgomp.c-c++-common/reverse-offload-1.c: Likewise. * testsuite/libgomp.fortran/reverse-offload-1.f90: Likewise. * testsuite/libgomp.c/reverse-offload-sm30.c: New test.
19 lines
486 B
C
19 lines
486 B
C
/* { dg-additional-options "-foffload-options=nvptx-none=-misa=sm_35" { target { offload_target_nvptx } } } */
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#pragma omp requires unified_shared_memory, unified_address, reverse_offload
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/* The requires line is not active as there is none of:
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declare target directives, device constructs or device routines.
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Thus, this code is expected to work everywhere. */
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int a[10];
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extern void foo (void);
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int
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main (void)
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{
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for (int i = 0; i < 10; i++)
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a[i] = 0;
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return 0;
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}
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