Matthias Braun 4acc514cc2 LiveIntervalAnalysis: No kill flags for partially undefined uses.
We must not add kill flags when reading a vreg with some undefined
subregisters, if subreg liveness tracking is enabled.  This is because
the register allocator may reuse these undefined subregisters for other
values which are not killed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224664 91177308-0d34-0410-b5e6-96231b3b80d8
2014-12-20 01:54:50 +00:00
..
2014-12-19 11:29:34 +00:00
2014-11-06 23:16:57 +00:00