diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/include/asm/rmwcc.h | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/arch/x86/include/asm/rmwcc.h b/arch/x86/include/asm/rmwcc.h index e3264c414c4a..661dd305694a 100644 --- a/arch/x86/include/asm/rmwcc.h +++ b/arch/x86/include/asm/rmwcc.h @@ -1,7 +1,9 @@ #ifndef _ASM_X86_RMWcc #define _ASM_X86_RMWcc -#ifdef CC_HAVE_ASM_GOTO +#if !defined(__GCC_ASM_FLAG_OUTPUTS__) && defined(CC_HAVE_ASM_GOTO) + +/* Use asm goto */ #define __GEN_RMWcc(fullop, var, cc, ...) \ do { \ @@ -19,13 +21,15 @@ cc_label: \ #define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc) \ __GEN_RMWcc(op " %1, " arg0, var, cc, vcon (val)) -#else /* !CC_HAVE_ASM_GOTO */ +#else /* defined(__GCC_ASM_FLAG_OUTPUTS__) || !defined(CC_HAVE_ASM_GOTO) */ + +/* Use flags output or a set instruction */ #define __GEN_RMWcc(fullop, var, cc, ...) \ do { \ bool c; \ - asm volatile (fullop "; set" #cc " %1" \ - : "+m" (var), "=qm" (c) \ + asm volatile (fullop ";" CC_SET(cc) \ + : "+m" (var), CC_OUT(cc) (c) \ : __VA_ARGS__ : "memory"); \ return c; \ } while (0) @@ -36,6 +40,6 @@ do { \ #define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc) \ __GEN_RMWcc(op " %2, " arg0, var, cc, vcon (val)) -#endif /* CC_HAVE_ASM_GOTO */ +#endif /* defined(__GCC_ASM_FLAG_OUTPUTS__) || !defined(CC_HAVE_ASM_GOTO) */ #endif /* _ASM_X86_RMWcc */ |