Add post-processing utilities to the PowerPC Decimal Floating Point
(DFP) helper code. Post-processors are small routines that execute
after a preliminary DFP result is computed. They are used, among other
things, to compute status bits.
This change defines a function type for post processors as well as a
generic routine to run a list (array) of post-processors.
Actual post-processor implementations will be added as needed by specific
DFP helpers in subsequent changes.
Some routines are annotated with the GCC unused attribute in order to
preserve build bisection. The annotation will be removed in subsequent
patches.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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