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Fold LIBC_BITS into LIBC_INTRIN

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Justine Tunney 2022-08-11 12:13:18 -07:00
parent 625aa365f1
commit 05b8f82371
603 changed files with 1071 additions and 1211 deletions
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16
libc/intrin/xadd.h Normal file
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@ -0,0 +1,16 @@
#ifndef COSMOPOLITAN_LIBC_BITS_XADD_H_
#define COSMOPOLITAN_LIBC_BITS_XADD_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
#define _xadd(p, v) \
({ \
typeof(*(p)) Res; \
autotype(Res) Val = (v); \
asm volatile("xadd\t%0,%1" : "=r"(Res), "+m"(*(p)) : "0"(Val)); \
Res + Val; \
})
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_BITS_XADD_H_ */