--- Comment #2 from andreas dot freimuth at united-bits dot de 2009-08-21
14:16 ---
I supposed that the "A" constraints was introduced to support instructions that
use a combination of d and a registers as parameters. These instructions that
use DX:AX, EDX:EAX and RDX:RAX as source or d
--- Comment #1 from rth at gcc dot gnu dot org 2009-08-20 22:28 ---
This is expected. The "A" constraint supposed to be used for a PAIR.
This means 64-bit values in 32-bit code or 128-bit values in 64-bit code.
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rth at gcc dot gnu dot org changed:
What|Removed
