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ICU-5352 Use better macros for determining CPU type.

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X-SVN-Rev: 20183
This commit is contained in:
George Rhoten 2006-08-29 21:34:37 +00:00
parent 72d9811956
commit f0957dcb7d
1 changed files with 5 additions and 1 deletions
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6
icu4c/source/common/unicode/pwin32.h
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@ -173,7 +173,11 @@ typedef unsigned int uint32_t;
#define ICU_USE_THREADS 1
/* On strong memory model CPUs (e.g. x86 CPUs), we use a safe & quick double check mutex lock. */
#if defined(_M_IX86) || defined(_M_AMD64) || (defined(__GNUC__) && (defined(__i386__) || defined(__amd64__)))
/*
Microsoft can define _M_IX86, _M_AMD64 (before Visual Studio 8) or _M_X64 (starting in Visual Studio 8).
Intel can define _M_IX86 or _M_X64
*/
#if defined(_M_IX86) || defined(_M_AMD64) || defined(_M_X64) || (defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)))
#define UMTX_STRONG_MEMORY_MODEL 1
#endif