[PATCH 2/10] OpenACC 2.0 support for libgomp - initial plugin support

Julian Brown julian@codesourcery.com
Tue Sep 23 18:18:00 GMT 2014


This patch is by Michael Zolotukhin and was originally posted here:

  https://gcc.gnu.org/ml/gcc-patches/2013-09/msg01469.html

It contains an initial implementation of plugin support for libgomp,
for implementing different hardware devices for pieces of accelerated
code to be offloaded to.

I also merged a minor follow-up fix by Thomas Schwinge.

Julian

xxxx-xx-xx  Michael Zolotukhin  <michael.v.zolotukhin@intel.com>
            Thomas Schwinge  <thomas@codesourcery.com>

       * configure.ac: Add checks for plugins support.
       * config.h.in: Regenerated.
       * configure: Regenerated.
       * target.c (struct target_mem_desc): Add device_descr field.
       (devices): New.
       (num_devices): New.
       (struct gomp_device_descr): New.
       (gomp_get_num_devices): Call gomp_target_init.
       (resolve_device): Return device_descr instead of int.
       (gomp_map_vars): Add devicep argument and update the function
       accordingly.
       (gomp_unmap_tgt): Likewise.
       (gomp_unmap_vars): Likewise.
       (gomp_update): Likewise.
       (GOMP_target): Use device_descr struct.
       (GOMP_target_data): Likewise.
       (GOMP_target_update): Likewise.
       (gomp_check_plugin_file_name): New.
       (gomp_load_plugin_for_device): New.
       (gomp_find_available_plugins): New.
       (gomp_target_init): New.
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