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6106dfb9f7
gcc/libgomp/plugin
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Thomas Schwinge 6106dfb9f7 [nvptx libgomp plugin] Build only in supported configurations 
As recently again discussed in <https://gcc.gnu.org/PR97436> "[nvptx] -m32
support", nvptx offloading other than for 64-bit host has never been
implemented, tested, supported.  So we simply should buildn't the nvptx libgomp
plugin in this case.

This avoids build problems if, for example, in a (standard) bi-arch
x86_64-pc-linux-gnu '-m64'/'-m32' build, libcuda is available only in a 64-bit
variant but not in a 32-bit one, which, for example, is the case if you build
GCC against the CUDA toolkit's 'stubs/libcuda.so' (see
<https://stackoverflow.com/a/52784819>).

This amends PR65099 commit a92defdab7 (r225560)
"[nvptx offloading] Only 64-bit configurations are currently supported" to
match the way we're doing this for the HSA/GCN plugins.

	libgomp/
	PR libgomp/65099
	* plugin/configfrag.ac (PLUGIN_NVPTX): Restrict to supported
	configurations.
	* configure: Regenerate.
	* plugin/plugin-nvptx.c (nvptx_get_num_devices): Remove 64-bit
	check.
2021-01-14 18:48:00 +01:00
..
cuda Update copyright years. 2021-01-04 10:26:59 +01:00
configfrag.ac [nvptx libgomp plugin] Build only in supported configurations 2021-01-14 18:48:00 +01:00
cuda-lib.def Add OpenACC 2.6 `acc_get_property' support 2019-12-22 19:54:09 +00:00
Makefrag.am Update copyright years. 2021-01-04 10:26:59 +01:00
plugin-gcn.c Update copyright years. 2021-01-04 10:26:59 +01:00
plugin-nvptx.c [nvptx libgomp plugin] Build only in supported configurations 2021-01-14 18:48:00 +01:00