diff options
Diffstat (limited to 'arch/x86/include/asm/rmwcc.h')
| -rw-r--r-- | arch/x86/include/asm/rmwcc.h | 26 |
1 files changed, 2 insertions, 24 deletions
diff --git a/arch/x86/include/asm/rmwcc.h b/arch/x86/include/asm/rmwcc.h index 3821ee3fae35..54c8fc430684 100644 --- a/arch/x86/include/asm/rmwcc.h +++ b/arch/x86/include/asm/rmwcc.h @@ -6,37 +6,15 @@ #define __CLOBBERS_MEM(clb...) "memory", ## clb -#ifndef __GCC_ASM_FLAG_OUTPUTS__ - -/* Use asm goto */ - -#define __GEN_RMWcc(fullop, _var, cc, clobbers, ...) \ -({ \ - bool c = false; \ - asm goto (fullop "; j" #cc " %l[cc_label]" \ - : : [var] "m" (_var), ## __VA_ARGS__ \ - : clobbers : cc_label); \ - if (0) { \ -cc_label: c = true; \ - } \ - c; \ -}) - -#else /* defined(__GCC_ASM_FLAG_OUTPUTS__) */ - -/* Use flags output or a set instruction */ - #define __GEN_RMWcc(fullop, _var, cc, clobbers, ...) \ ({ \ bool c; \ - asm_inline volatile (fullop CC_SET(cc) \ - : [var] "+m" (_var), CC_OUT(cc) (c) \ + asm_inline volatile (fullop \ + : [var] "+m" (_var), "=@cc" #cc (c) \ : __VA_ARGS__ : clobbers); \ c; \ }) -#endif /* defined(__GCC_ASM_FLAG_OUTPUTS__) */ - #define GEN_UNARY_RMWcc_4(op, var, cc, arg0) \ __GEN_RMWcc(op " " arg0, var, cc, __CLOBBERS_MEM()) |