On 02/23/2010 07:58 AM, Borislav Petkov wrote:
Hmm, we cannot do that with the current design since __arch_hweight64 is being inlined into every callsite and AFAICT we would have to build every callsite with "-fcall-saved-rdi" which is clearly too much. The explicit "=D" dummy constraint is straightforward, instead.
Uh... the -fcall-saved-rdi would go with all the other ones. Assuming it can actually work and that gcc doesn't choke on an inbound argument being saved.
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