Change Details

This patch was requested to be split out from D30086 It generalises SDNodes carrying flags, adding support for a currently unused unary SDNode with flags. Once D30086 lands two SDNodes will use the UnaryWithFlagsSDNode created here. NFC.

The flags have been moved into SDNode, and the BinaryWithFlagsSDNode class has been removed. The flags also contain a new "defined" state to allow intersecting between defined flags, and those which have just been default-constructed but never set. As a result of these changes, flags are now passed by value, so all the users have been updated. This also paves the way to easily extend flags to 3 operand nodes.

This patch was requested to be split out from D30086e flags have been moved into SDNode, and the BinaryWithFlagsSDNode class has been removed. The flags also contain a new "defined" state to allow intersecting between defined flags, and those which have just been default-constructed but never set. As a result of these changes, flags are now passed by value, so all the users have been updated. It generalises SDNodes carrying flags, adding support for a currently unused unary SDNode with flags. Once D30086 lands two SDNodes will use the UnaryWithFlagsSDNode created here. NFCThis also paves the way to easily extend flags to 3 operand nodes.