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[Bug tree-optimization/56829] New: Feature request: "generic" builtin for "movemask"

From: "vincenzo.innocente at cern dot ch" <gcc-bugzilla at gcc dot gnu dot org>
To: gcc-bugs at gcc dot gnu dot org
Date: Wed, 03 Apr 2013 11:51:47 +0000
Subject: [Bug tree-optimization/56829] New: Feature request: "generic" builtin for "movemask"
Auto-submitted: auto-generated

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56829

             Bug #: 56829
           Summary: Feature request: "generic" builtin for "movemask"
    Classification: Unclassified
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: vincenzo.innocente@cern.ch


I would like to ask if is possible to add a builtin for "movemask" instructions
supporting vectors of any size (on the same line of  __builtin_shuffle)
One could call it __builtin_ballot following CUDA syntax
implementing any,all,popcnt is then rather trivial using the existing builtins

The rational is described in PR55645

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