Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2025-02-22 16:36:33 +00:00
Code Issues Projects Releases Packages Wiki Activity

[CRT]

Browse source 
- Force the use of memory operands in bit test intrinsics. Bit offsets above 31 (or 63) can't behave correctly with registers (the constant case is fine because it ensures low offsets). Thanks to Timo Kreuzer and Alex Radocea.

svn path=/trunk/; revision=62266
This commit is contained in:
Thomas Faber 2014-02-20 19:28:27 +00:00
parent ef678077bf
commit 76d29a732a
1 changed files with 5 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
reactos/include/crt/mingw32/intrin_x86.h
View file

@ -1032,7 +1032,7 @@ __INTRIN_INLINE unsigned char _bittest(const long * const a, const long b)
if(__builtin_constant_p(b))
__asm__("bt %[b], %[a]; setb %b[retval]" : [retval] "=q" (retval) : [a] "mr" (*(a + (b / 32))), [b] "Ir" (b % 32));
else
__asm__("bt %[b], %[a]; setb %b[retval]" : [retval] "=q" (retval) : [a] "mr" (*a), [b] "r" (b));
__asm__("bt %[b], %[a]; setb %b[retval]" : [retval] "=q" (retval) : [a] "m" (*a), [b] "r" (b));
return retval;
}
@ -1045,7 +1045,7 @@ __INTRIN_INLINE unsigned char _bittest64(const __int64 * const a, const __int64
if(__builtin_constant_p(b))
__asm__("bt %[b], %[a]; setb %b[retval]" : [retval] "=q" (retval) : [a] "mr" (*(a + (b / 64))), [b] "Ir" (b % 64));
else
__asm__("bt %[b], %[a]; setb %b[retval]" : [retval] "=q" (retval) : [a] "mr" (*a), [b] "r" (b));
__asm__("bt %[b], %[a]; setb %b[retval]" : [retval] "=q" (retval) : [a] "m" (*a), [b] "r" (b));
return retval;
}
@ -1058,7 +1058,7 @@ __INTRIN_INLINE unsigned char _bittestandcomplement(long * const a, const long b
if(__builtin_constant_p(b))
__asm__("btc %[b], %[a]; setb %b[retval]" : [a] "+mr" (*(a + (b / 32))), [retval] "=q" (retval) : [b] "Ir" (b % 32));
else
__asm__("btc %[b], %[a]; setb %b[retval]" : [a] "+mr" (*a), [retval] "=q" (retval) : [b] "r" (b));
__asm__("btc %[b], %[a]; setb %b[retval]" : [a] "+m" (*a), [retval] "=q" (retval) : [b] "r" (b));
return retval;
}
@ -1070,7 +1070,7 @@ __INTRIN_INLINE unsigned char _bittestandreset(long * const a, const long b)
if(__builtin_constant_p(b))
__asm__("btr %[b], %[a]; setb %b[retval]" : [a] "+mr" (*(a + (b / 32))), [retval] "=q" (retval) : [b] "Ir" (b % 32));
else
__asm__("btr %[b], %[a]; setb %b[retval]" : [a] "+mr" (*a), [retval] "=q" (retval) : [b] "r" (b));
__asm__("btr %[b], %[a]; setb %b[retval]" : [a] "+m" (*a), [retval] "=q" (retval) : [b] "r" (b));
return retval;
}
@ -1082,7 +1082,7 @@ __INTRIN_INLINE unsigned char _bittestandset(long * const a, const long b)
if(__builtin_constant_p(b))
__asm__("bts %[b], %[a]; setb %b[retval]" : [a] "+mr" (*(a + (b / 32))), [retval] "=q" (retval) : [b] "Ir" (b % 32));
else
__asm__("bts %[b], %[a]; setb %b[retval]" : [a] "+mr" (*a), [retval] "=q" (retval) : [b] "r" (b));
__asm__("bts %[b], %[a]; setb %b[retval]" : [a] "+m" (*a), [retval] "=q" (retval) : [b] "r" (b));
return retval;
}