Juergen Ributzka 7384405f23 [DAG] Teach DAG to also reassociate vector operations ...

This commit teaches DAG to reassociate vector ops, which in turn enables
constant folding of vector op chains that appear later on during custom lowering
and DAG combine.

Reviewed by Andrea Di Biagio

llvm-svn: 199135

2014-01-13 20:51:35 +00:00

242 KiB

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