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Make minor improvements

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This commit is contained in:
Justine Tunney 2020-12-23 23:42:56 -08:00
parent 04caf6f9ad
commit 95b142e4e5
95 changed files with 3818 additions and 2760 deletions
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13
libc/bits/bits.h
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@ -263,11 +263,12 @@ unsigned long hamming(unsigned long, unsigned long) pureconst;
* @return LOCALVAR[0]
* @see xchg()
*/
#define lockxchg(MEMORY, LOCALVAR) \
({ \
static_assert(typescompatible(typeof(*(MEMORY)), typeof(*(LOCALVAR)))); \
asm("xchg\t%0,%1" : "+%m"(*(MEMORY)), "+r"(*(LOCALVAR))); \
*(LOCALVAR); \
#define lockxchg(MEMORY, LOCALVAR) \
({ \
_Static_assert( \
__builtin_types_compatible_p(typeof(*(MEMORY)), typeof(*(LOCALVAR)))); \
asm("xchg\t%0,%1" : "+%m"(*(MEMORY)), "+r"(*(LOCALVAR))); \
*(LOCALVAR); \
})
/**
@ -376,7 +377,7 @@ unsigned long hamming(unsigned long, unsigned long) pureconst;
#define __BitOp(OP, BIT, MEM) \
({ \
bool OldBit; \
if (isconstant(BIT)) { \
if (__builtin_constant_p(BIT)) { \
asm(CFLAG_ASM(OP "%z1\t%2,%1") \
: CFLAG_CONSTRAINT(OldBit), \
"+m"((MEM)[(BIT) / (sizeof((MEM)[0]) * CHAR_BIT)]) \