[Libre-soc-isa] [Bug 1063] New: consider removing predicate-result from SVP64

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Wed Apr 19 12:24:56 BST 2023


            Bug ID: 1063
           Summary: consider removing predicate-result from SVP64
           Product: Libre-SOC's first SoC
           Version: unspecified
          Hardware: Other
                OS: Linux
            Status: CONFIRMED
          Severity: enhancement
          Priority: ---
         Component: Specification
          Assignee: lkcl at lkcl.net
          Reporter: lkcl at lkcl.net
                CC: libre-soc-isa at lists.libre-soc.org
   NLnet milestone: ---

pred-result hooks Rc=1 bit-testing into the destination predicate mask.
however the question is, the same thing may be achieved with an extra
sv.cmpi or sv.crop but at the cost of needing extra temporary registers
to do it.

evaluate whether it is worth keeping.

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