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3 Commits

Author SHA1 Message Date
Andrew Trick
966772931e LiveRegUnits: Use *MBB for consistency and convenience. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192634 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-10-14 22:18:59 +00:00
Andrew Trick
6c325c9133 LiveRegUnits::removeRegsInMask safety. 
Clobbering is exclusive not inclusive on register units.
For liveness, we need to consider all the preserved registers.
e.g. A regmask that clobbers YMM0 may preserve XMM0.
Units are only clobbered when all super-registers are clobbered.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192623 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-10-14 20:45:19 +00:00
Andrew Trick
eb3b9f8ed9 Move LiveRegUnits implementation into .cpp. Comment and format. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192621 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-10-14 20:45:14 +00:00