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2 Commits

Author SHA1 Message Date
James Molloy
cd2647f4fd Don't create a MIN/MAX node if the underlying compare has more than one use. 
If the compare in a select pattern has another use then it can't be removed, so we'd just
be creating repeated code if we created a min/max node.

Spotted by Matt Arsenault!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239037 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-06-04 13:48:23 +00:00
James Molloy
d63e0fc2d9 Mark SMIN/SMAX/UMIN/UMAX nodes as legal and add patterns for them. 
The new [SU]{MIN,MAX} SDNodes can be lowered directly to instructions for
most NEON datatypes - the big exclusion being v2i64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237455 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-05-15 16:15:57 +00:00