diff options
| author | Marina Yatsina <marina.yatsina@intel.com> | 2016-12-26 12:23:42 +0000 |
|---|---|---|
| committer | Marina Yatsina <marina.yatsina@intel.com> | 2016-12-26 12:23:42 +0000 |
| commit | 158bdde29231fe764b5849ef5eb21398b6345536 (patch) | |
| tree | c75cd2ba03a7d5bf0b9df43b93c129d47acfeb27 /lib/Headers | |
| parent | 2f5a0f873a9cfe147b84c758d17f660b887881f6 (diff) | |
[inline-asm]No error for conflict between inputs\outputs and clobber list
According to extended asm syntax, a case where the clobber list includes a variable from the inputs or outputs should be an error - conflict.
for example:
const long double a = 0.0;
int main()
{
char b;
double t1 = a;
__asm__ ("fucompp": "=a" (b) : "u" (t1), "t" (t1) : "cc", "st", "st(1)");
return 0;
}
This should conflict with the output - t1 which is st, and st which is st aswell.
The patch fixes it.
Commit on behald of Ziv Izhar.
Differential Revision: https://reviews.llvm.org/D15075
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@290539 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Headers')
| -rw-r--r-- | lib/Headers/intrin.h | 21 |
1 files changed, 7 insertions, 14 deletions
diff --git a/lib/Headers/intrin.h b/lib/Headers/intrin.h index 76cbb9acb1..7c91ebaee8 100644 --- a/lib/Headers/intrin.h +++ b/lib/Headers/intrin.h @@ -1010,40 +1010,33 @@ __readgsqword(unsigned long __offset) { #if defined(__i386__) || defined(__x86_64__) static __inline__ void __DEFAULT_FN_ATTRS __movsb(unsigned char *__dst, unsigned char const *__src, size_t __n) { - __asm__("rep movsb" : : "D"(__dst), "S"(__src), "c"(__n) - : "%edi", "%esi", "%ecx"); + __asm__("rep movsb" : : "D"(__dst), "S"(__src), "c"(__n)); } static __inline__ void __DEFAULT_FN_ATTRS __movsd(unsigned long *__dst, unsigned long const *__src, size_t __n) { - __asm__("rep movsl" : : "D"(__dst), "S"(__src), "c"(__n) - : "%edi", "%esi", "%ecx"); + __asm__("rep movsl" : : "D"(__dst), "S"(__src), "c"(__n)); } static __inline__ void __DEFAULT_FN_ATTRS __movsw(unsigned short *__dst, unsigned short const *__src, size_t __n) { - __asm__("rep movsw" : : "D"(__dst), "S"(__src), "c"(__n) - : "%edi", "%esi", "%ecx"); + __asm__("rep movsw" : : "D"(__dst), "S"(__src), "c"(__n)); } static __inline__ void __DEFAULT_FN_ATTRS __stosd(unsigned long *__dst, unsigned long __x, size_t __n) { - __asm__("rep stosl" : : "D"(__dst), "a"(__x), "c"(__n) - : "%edi", "%ecx"); + __asm__("rep stosl" : : "D"(__dst), "a"(__x), "c"(__n)); } static __inline__ void __DEFAULT_FN_ATTRS __stosw(unsigned short *__dst, unsigned short __x, size_t __n) { - __asm__("rep stosw" : : "D"(__dst), "a"(__x), "c"(__n) - : "%edi", "%ecx"); + __asm__("rep stosw" : : "D"(__dst), "a"(__x), "c"(__n)); } #endif #ifdef __x86_64__ static __inline__ void __DEFAULT_FN_ATTRS __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"); + __asm__("rep movsq" : : "D"(__dst), "S"(__src), "c"(__n)); } static __inline__ void __DEFAULT_FN_ATTRS __stosq(unsigned __int64 *__dst, unsigned __int64 __x, size_t __n) { - __asm__("rep stosq" : : "D"(__dst), "a"(__x), "c"(__n) - : "%edi", "%ecx"); + __asm__("rep stosq" : : "D"(__dst), "a"(__x), "c"(__n)); } #endif |