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6 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
7c489ab365 Use a SparseSet in LiveRegUnits. 
Some clients may add block live ins and may track liveness over a
large scope. This guarantees an efficient implementation in all cases
with no memory allocation/deallocation, independent of the number of
target registers. It could be slightly less convenient but is fine in
the expected case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192622 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-10-14 20:45:17 +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
Andrew Trick
a3e69a0467 Remove extra indentation in LiveRegUnits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192620 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-10-14 20:45:11 +00:00
Andrew Trick
5601abb60d Convert LiveRegUnits methods to the current convention (it's new code). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192619 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-10-14 20:45:09 +00:00
Matthias Braun
da74817c50 Introduce ad hoc liveness tracking utility: LiveRegUnits 
Contains a set of live register (units) and code to move forward and
backward in the schedule while updating the live set.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192481 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-10-11 19:04:35 +00:00