1#ifndef _TOOLS_LINUX_ASM_X86_RMWcc
2#define _TOOLS_LINUX_ASM_X86_RMWcc
3
4#ifdef CC_HAVE_ASM_GOTO
5
6#define __GEN_RMWcc(fullop, var, cc, ...)				\
7do {									\
8	asm_volatile_goto (fullop "; j" cc " %l[cc_label]"		\
9			: : "m" (var), ## __VA_ARGS__ 			\
10			: "memory" : cc_label);				\
11	return 0;							\
12cc_label:								\
13	return 1;							\
14} while (0)
15
16#define GEN_UNARY_RMWcc(op, var, arg0, cc) 				\
17	__GEN_RMWcc(op " " arg0, var, cc)
18
19#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc)			\
20	__GEN_RMWcc(op " %1, " arg0, var, cc, vcon (val))
21
22#else /* !CC_HAVE_ASM_GOTO */
23
24#define __GEN_RMWcc(fullop, var, cc, ...)				\
25do {									\
26	char c;								\
27	asm volatile (fullop "; set" cc " %1"				\
28			: "+m" (var), "=qm" (c)				\
29			: __VA_ARGS__ : "memory");			\
30	return c != 0;							\
31} while (0)
32
33#define GEN_UNARY_RMWcc(op, var, arg0, cc)				\
34	__GEN_RMWcc(op " " arg0, var, cc)
35
36#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc)			\
37	__GEN_RMWcc(op " %2, " arg0, var, cc, vcon (val))
38
39#endif /* CC_HAVE_ASM_GOTO */
40
41#endif /* _TOOLS_LINUX_ASM_X86_RMWcc */
42