Re: [PATCH v3 2/2] x86_64: Don't save flags on context switch

[H. Peter Anvin]

On 10/01/2014 11:28 AM, Andy Lutomirski wrote:
>  
>  #define __EXTRA_CLOBBER  \
>  	, "rcx", "rbx", "rdx", "r8", "r9", "r10", "r11", \
> -	  "r12", "r13", "r14", "r15"
> +	  "r12", "r13", "r14", "r15", "flags"
>  

I was under the impression that gcc *always* assumes the flags were
clobbered for an asm statement.  Otherwise I think we'd have a lot of
problems.

	-hpa


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