Re: [PATCH] Don't allow combination of read/write and earlyclobber constraint modifier

2014-07-02 Thread Richard Earnshaw
On 02/07/14 08:52, Tom de Vries wrote: > On 01-07-14 21:47, Jeff Law wrote: >> On 07/01/14 13:27, Tom de Vries wrote: >>> So my question is: is the combination of '&' and '+' supported ? If so, >>> what is the exact semantics ? If not, should we warn or give an error ? > > >> I don't think we can

[PATCH] Don't allow combination of read/write and earlyclobber constraint modifier

2014-07-02 Thread Tom de Vries
On 01-07-14 21:47, Jeff Law wrote: On 07/01/14 13:27, Tom de Vries wrote: So my question is: is the combination of '&' and '+' supported ? If so, what is the exact semantics ? If not, should we warn or give an error ? > I don't think we can define any reasonable semantics for &+. My recommend