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MS intrinsics: implement the __movs and __stos intrinsics (PR19054) 

llvm-svn: 203722
This commit is contained in:
Hans Wennborg 2014-03-12 22:00:32 +00:00
parent 80f20133d4
commit d9be72ec44
1 changed files with 54 additions and 0 deletions
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54
clang/lib/Headers/Intrin.h
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@ -81,8 +81,11 @@ unsigned char __lwpins32(unsigned int, unsigned int, unsigned int);
void __lwpval32(unsigned int, unsigned int, unsigned int);
unsigned int __lzcnt(unsigned int);
unsigned short __lzcnt16(unsigned short);
static __inline__
void __movsb(unsigned char *, unsigned char const *, size_t);
static __inline__
void __movsd(unsigned long *, unsigned long const *, size_t);
static __inline__
void __movsw(unsigned short *, unsigned short const *, size_t);
void __nop(void);
void __nvreg_restore_fence(void);
@ -121,8 +124,11 @@ unsigned __int64 __readpmc(unsigned long);
unsigned long __segmentlimit(unsigned long);
void __sidt(void *);
void *__slwpcb(void);
static __inline__
void __stosb(unsigned char *, unsigned char, size_t);
static __inline__
void __stosd(unsigned long *, unsigned long, size_t);
static __inline__
void __stosw(unsigned short *, unsigned short, size_t);
void __svm_clgi(void);
void __svm_invlpga(void *, int);
@ -318,6 +324,7 @@ void __incgsword(unsigned long);
unsigned char __lwpins64(unsigned __int64, unsigned int, unsigned int);
void __lwpval64(unsigned __int64, unsigned int, unsigned int);
unsigned __int64 __lzcnt64(unsigned __int64);
static __inline__
void __movsq(unsigned long long *, unsigned long long const *, size_t);
__int64 __mulh(__int64, __int64);
static __inline__
@ -335,6 +342,7 @@ unsigned __int64 __shiftleft128(unsigned __int64 _LowPart,
unsigned __int64 __shiftright128(unsigned __int64 _LowPart,
unsigned __int64 _HighPart,
unsigned char _Shift);
static __inline__
void __stosq(unsigned __int64 *, unsigned __int64, size_t);
unsigned __int64 __umulh(unsigned __int64, unsigned __int64);
unsigned char __vmx_on(unsigned __int64 *);
@ -867,6 +875,52 @@ __readgsword(unsigned long __offset) {
}
#endif
#undef __ptr_to_addr_space
/*----------------------------------------------------------------------------*\
|* movs, stos
\*----------------------------------------------------------------------------*/
static __inline__ void __attribute__((__always_inline__, __nodebug__))
__movsb(unsigned char *__dst, unsigned char const *__src, size_t __n) {
__asm__("rep movsb" : : "D"(__dst), "S"(__src), "c"(__n)
: "%edi", "%esi", "%ecx");
}
static __inline__ void __attribute__((__always_inline__, __nodebug__))
__movsd(unsigned long *__dst, unsigned long const *__src, size_t __n) {
__asm__("rep movsl" : : "D"(__dst), "S"(__src), "c"(__n)
: "%edi", "%esi", "%ecx");
}
static __inline__ void __attribute__((__always_inline__, __nodebug__))
__movsw(unsigned short *__dst, unsigned short const *__src, size_t __n) {
__asm__("rep movsh" : : "D"(__dst), "S"(__src), "c"(__n)
: "%edi", "%esi", "%ecx");
}
static __inline__ void __attribute__((__always_inline__, __nodebug__))
__stosb(unsigned char *__dst, unsigned char __x, size_t __n) {
__asm__("rep stosb" : : "D"(__dst), "a"(__x), "c"(__n)
: "%edi", "%ecx");
}
static __inline__ void __attribute__((__always_inline__, __nodebug__))
__stosd(unsigned long *__dst, unsigned long __x, size_t __n) {
__asm__("rep stosl" : : "D"(__dst), "a"(__x), "c"(__n)
: "%edi", "%ecx");
}
static __inline__ void __attribute__((__always_inline__, __nodebug__))
__stosw(unsigned short *__dst, unsigned short __x, size_t __n) {
__asm__("rep stosh" : : "D"(__dst), "a"(__x), "c"(__n)
: "%edi", "%ecx");
}
#ifdef __x86_64__
static __inline__ void __attribute__((__always_inline__, __nodebug__))
__movsq(unsigned long long *__dst, unsigned long long const *__src, size_t __n) {
__asm__("rep movsq" : : "D"(__dst), "S"(__src), "c"(__n)
: "%edi", "%esi", "%ecx");
}
static __inline__ void __attribute__((__always_inline__, __nodebug__))
__stosq(unsigned __int64 *__dst, unsigned __int64 __x, size_t __n) {
__asm__("rep stosq" : : "D"(__dst), "a"(__x), "c"(__n)
: "%edi", "%ecx");
}
#endif
/*----------------------------------------------------------------------------*\
|* Misc
\*----------------------------------------------------------------------------*/