From 46651ce6fe013220ed397add242004d764fc0153 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 4 May 2024 14:15:05 +0200 Subject: Adding upstream version 14.5. Signed-off-by: Daniel Baumann --- src/include/port/atomics/arch-ia64.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 src/include/port/atomics/arch-ia64.h (limited to 'src/include/port/atomics/arch-ia64.h') diff --git a/src/include/port/atomics/arch-ia64.h b/src/include/port/atomics/arch-ia64.h new file mode 100644 index 0000000..45f36f2 --- /dev/null +++ b/src/include/port/atomics/arch-ia64.h @@ -0,0 +1,29 @@ +/*------------------------------------------------------------------------- + * + * arch-ia64.h + * Atomic operations considerations specific to intel itanium + * + * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * NOTES: + * + * src/include/port/atomics/arch-ia64.h + * + *------------------------------------------------------------------------- + */ + +/* + * Itanium is weakly ordered, so read and write barriers require a full + * fence. + */ +#if defined(__INTEL_COMPILER) +# define pg_memory_barrier_impl() __mf() +#elif defined(__GNUC__) +# define pg_memory_barrier_impl() __asm__ __volatile__ ("mf" : : : "memory") +#elif defined(__hpux) +# define pg_memory_barrier_impl() _Asm_mf() +#endif + +/* per architecture manual doubleword accesses have single copy atomicity */ +#define PG_HAVE_8BYTE_SINGLE_COPY_ATOMICITY -- cgit v1.2.3