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Re: GAS/ia64: spurious dv conflict


Richard Henderson <rth@redhat.com> writes:

> On Wed, Oct 01, 2003 at 03:08:13PM +0200, Andreas Schwab wrote:
>> The following input when assembled with -x gives a spurious dependency
>> warning:
>> 
>> .text
>> start:	
>> 	.pred.rel.mutex p1, p2
>> (p3)	cmp.eq p1, p2 = r1, r2;;
>> (p1)	mov r4 = 2
>> (p2)	mov r4 = 4
>> 	rfi
>
> You need to test that 
>
>   (p3)	cmp.eq p1, p0 = r1, r2
>
> *does* warn, since there's no longer a mutex relation between r1,r2.

I don't understand.  What do r1/r2 have to do with mutexes?

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nürnberg
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