------- Comment #33 from guenter at roeck-us dot net 2006-08-31 05:15 ------- (In reply to comment #32) > I do not mean one evlwwsplat. I mean two in place of the two lwz, to > correspond to the evmergelo/evmergehi pair. >
Hmm ... what would be the point ? evlwwsplat copies 32 bit memory content into the upper and lower 32 bits of the target register. The upper part is not needed in the given case, so moving data into it would not provide any benefit. Am I missing something ? Would using evlwwsplat make subsequent optimizations more difficult ? That might be an argument against it. Other than that, I don't really care which opcodes to use, as long as the resulting code works. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27287
