fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2025-12-24 08:50:13 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

util/u_atomic: Use _Interlocked* intrinsics for non 64bits.

Browse source 
The intrinsics are universally available, whereas older Windows SDKs (e.g.
7.0.7600) don't have the non-intrisic entrypoint.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
This commit is contained in:
José Fonseca 2015-01-20 23:34:26 +00:00 • committed by Jose Fonseca
parent a7eec6d620
commit d7f2dfb67e
1 changed files with 12 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
src/util/u_atomic.h
View file

@ -71,8 +71,8 @@
#define PIPE_ATOMIC "MSVC Intrinsics"
/* We use the Windows header's Interlocked* functions instead of the
* _Interlocked* intrinsics wherever we can, as support for the latter varies
/* We use the Windows header's Interlocked*64 functions instead of the
* _Interlocked*64 intrinsics wherever we can, as support for the latter varies
* with target CPU, whereas Windows headers take care of all portability
* issues: using intrinsics where available, falling back to library
* implementations where not.
@ -102,25 +102,25 @@
((void) p_atomic_inc_return(_v))
#define p_atomic_inc_return(_v) (\
sizeof *(_v) == sizeof(short) ? InterlockedIncrement16((short *) (_v)) : \
sizeof *(_v) == sizeof(long) ? InterlockedIncrement ((long *) (_v)) : \
sizeof *(_v) == sizeof(__int64) ? InterlockedIncrement64((__int64 *)(_v)) : \
sizeof *(_v) == sizeof(short) ? _InterlockedIncrement16((short *) (_v)) : \
sizeof *(_v) == sizeof(long) ? _InterlockedIncrement ((long *) (_v)) : \
sizeof *(_v) == sizeof(__int64) ? InterlockedIncrement64 ((__int64 *)(_v)) : \
(assert(!"should not get here"), 0))
#define p_atomic_dec(_v) \
((void) p_atomic_dec_return(_v))
#define p_atomic_dec_return(_v) (\
sizeof *(_v) == sizeof(short) ? InterlockedDecrement16((short *) (_v)) : \
sizeof *(_v) == sizeof(long) ? InterlockedDecrement ((long *) (_v)) : \
sizeof *(_v) == sizeof(__int64) ? InterlockedDecrement64((__int64 *)(_v)) : \
sizeof *(_v) == sizeof(short) ? _InterlockedDecrement16((short *) (_v)) : \
sizeof *(_v) == sizeof(long) ? _InterlockedDecrement ((long *) (_v)) : \
sizeof *(_v) == sizeof(__int64) ? InterlockedDecrement64 ((__int64 *)(_v)) : \
(assert(!"should not get here"), 0))
#define p_atomic_cmpxchg(_v, _old, _new) (\
sizeof *(_v) == sizeof(char) ? _InterlockedCompareExchange8((char *) (_v), (char) (_new), (char) (_old)) : \
sizeof *(_v) == sizeof(short) ? InterlockedCompareExchange16((short *) (_v), (short) (_new), (short) (_old)) : \
sizeof *(_v) == sizeof(long) ? InterlockedCompareExchange ((long *) (_v), (long) (_new), (long) (_old)) : \
sizeof *(_v) == sizeof(__int64) ? InterlockedCompareExchange64((__int64 *)(_v), (__int64)(_new), (__int64)(_old)) : \
sizeof *(_v) == sizeof(char) ? _InterlockedCompareExchange8 ((char *) (_v), (char) (_new), (char) (_old)) : \
sizeof *(_v) == sizeof(short) ? _InterlockedCompareExchange16((short *) (_v), (short) (_new), (short) (_old)) : \
sizeof *(_v) == sizeof(long) ? _InterlockedCompareExchange ((long *) (_v), (long) (_new), (long) (_old)) : \
sizeof *(_v) == sizeof(__int64) ? InterlockedCompareExchange64 ((__int64 *)(_v), (__int64)(_new), (__int64)(_old)) : \
(assert(!"should not get here"), 0))
#endif