At least here newlib is build without HAVE_POSIX / 'posix' subdirectory
and, hence, among others without 'usleep'.
For nvptx, the same issue exists – and there 'omp declare variant' is used
to call a burn-cycles loop as replacement.
Affects target-32.c and thread-limit-2.c.
OK?
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testsuite/libgomp.c/usleep.h: Use sleep-loop also for GCN
As typically configured, newlib's libc.a does not build 'posix' and,
hence, usleep is not available. Thus, use the same fallback as for nvptx.
libgomp/
* testsuite/libgomp.c/usleep.h (nvptx_usleep): Also use for device={arch(gcn)}.
diff --git a/libgomp/testsuite/libgomp.c/usleep.h b/libgomp/testsuite/libgomp.c/usleep.h
index c01aaa0a88f..1535ad06201 100644
--- a/libgomp/testsuite/libgomp.c/usleep.h
+++ b/libgomp/testsuite/libgomp.c/usleep.h
@@ -14,6 +14,7 @@ nvptx_usleep (useconds_t d)
}
#pragma omp declare variant (nvptx_usleep) match(construct={target},device={arch(nvptx)})
+#pragma omp declare variant (nvptx_usleep) match(construct={target},device={arch(gcn)})
#pragma omp declare variant (usleep) match(user={condition(1)})
int
tgt_usleep (useconds_t d)
