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util: Remove u_atomic.h's MSVC inline assembly. 

There was already an intrinsics path that implemented all of the same
functions, plus more.

Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
This commit is contained in:
Matt Turner 2014-11-21 15:51:42 -08:00
parent 504062be2a
commit 972f8458f1
1 changed files with 0 additions and 70 deletions
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70
src/util/u_atomic.h
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@ -19,8 +19,6 @@
#define PIPE_ATOMIC_OS_SOLARIS
#elif defined(_MSC_VER)
#define PIPE_ATOMIC_MSVC_INTRINSIC
#elif (defined(_MSC_VER) && (defined(__i386__) || defined(_M_IX86))
#define PIPE_ATOMIC_ASM_MSVC_X86
#elif defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 401)
#define PIPE_ATOMIC_GCC_INTRINSIC
#elif (defined(__GNUC__) && defined(__i386__))
@ -226,74 +224,6 @@ p_atomic_cmpxchg(int32_t *v, int32_t old, int32_t _new)
#endif
/* Locally coded assembly for MSVC on x86:
*/
#if defined(PIPE_ATOMIC_ASM_MSVC_X86)
#define PIPE_ATOMIC "MSVC x86 assembly"
#ifdef __cplusplus
extern "C" {
#endif
#define p_atomic_set(_v, _i) (*(_v) = (_i))
#define p_atomic_read(_v) (*(_v))
static inline boolean
p_atomic_dec_zero(int32_t *v)
{
unsigned char c;
__asm {
mov eax, [v]
lock dec dword ptr [eax]
sete byte ptr [c]
}
return c != 0;
}
static inline void
p_atomic_inc(int32_t *v)
{
__asm {
mov eax, [v]
lock inc dword ptr [eax]
}
}
static inline void
p_atomic_dec(int32_t *v)
{
__asm {
mov eax, [v]
lock dec dword ptr [eax]
}
}
static inline int32_t
p_atomic_cmpxchg(int32_t *v, int32_t old, int32_t _new)
{
int32_t orig;
__asm {
mov ecx, [v]
mov eax, [old]
mov edx, [_new]
lock cmpxchg [ecx], edx
mov [orig], eax
}
return orig;
}
#ifdef __cplusplus
}
#endif
#endif
#if defined(PIPE_ATOMIC_MSVC_INTRINSIC)
#define PIPE_ATOMIC "MSVC Intrinsics"