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From: Michael R. Crusoe <michael.crusoe@gmail.com>
Subject: Fix thread wait for IA64
--- seqan2.orig/include/seqan/parallel/parallel_lock.h
+++ seqan2/include/seqan/parallel/parallel_lock.h
@@ -233,6 +233,8 @@
__asm__ __volatile__ ("or 27,27,27" ::: "memory");
#elif defined(__SSE2__) // AMD and Intel
_mm_pause();
+#elif defined(__ia64__) // IA64
+ __asm__ __volatile__ ("hint @pause");
#else // everything else.
asm volatile ("nop" ::: "memory"); // default operation - does nothing => Might lead to passive spinning.
#endif
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