On Wed, 21 Sep 2011, David Miller wrote: > Unfortunately, we can't use these for comparisons on vectors as the > compiler wants them. Instead of producing a vector of comparison > results, these instructions produce a small bitmask of those results > in a destination integer register. Therefore we have to provide > them using unspecs and builtins.
Do you have any instructions to convert the bitmask into a vector of results? (Cf. what I said in <http://gcc.gnu.org/ml/gcc-patches/2010-08/msg01120.html> about vector comparisons on C6X, where there are XPND2 and XPND4 instructions for that conversion, but you'd still like operations written to use abstract comparisons generating code that avoids the expansion instructions if possible.) -- Joseph S. Myers jos...@codesourcery.com
