The added function is currently '#if 0' but is planned to be used to enable
self mapping automatically. Prerequisite for auto self maps is still mapping
'declare target' variables (if any, in libgomp) or converting all
'declare target' variables to 'declare target link' in the compiler
(as required for 'omp requires self_maps').
include/ChangeLog:
* hsa_ext_amd.h (enum hsa_amd_agent_info_s): Add
HSA_AMD_AGENT_INFO_MEMORY_PROPERTIES.
(enum): Add HSA_AMD_MEMORY_PROPERTY_AGENT_IS_APU.
libgomp/ChangeLog:
* plugin/plugin-gcn.c (is_integrated_apu): New; currently '#if 0'.
* plugin/plugin-nvptx.c (is_integrated_apu): Likewise.
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