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5 Commits

Author SHA1 Message Date
Krzysztof Parzyszek
d1ed87a667 [RDF] Replace RegisterAliasInfo with target-independent code using lane masks 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283122 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-10-03 17:14:48 +00:00
Benjamin Kramer
e1a12fcbf1 [hexagon] Move BlockRanges and RDF stuff into the llvm namespace. 
No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270980 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-05-27 10:06:40 +00:00
Krzysztof Parzyszek
12db936b00 [RDF] Handle undefined registers in RDF copy propagation 
When updating the graph, make sure that new uses without reaching defs
are handled correctly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@267891 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-04-28 15:09:19 +00:00
Krzysztof Parzyszek
ceca33ae84 [RDF] Improvements to copy propagation 
- Allow any instruction to define equality between registers.
- Keep the DFG updated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258075 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-01-18 20:43:57 +00:00
Krzysztof Parzyszek
04a98e25aa RDF: Copy propagation 
This is a very limited implementation of DFG-based copy propagation.
It only handles actual COPY instructions (does not handle other equivalents
such as add-immediate with a 0 operand).
The major limitation is that it does not update the DFG: that will be the
change required to make it more robust (hopefully coming up soon).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257490 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-01-12 17:23:48 +00:00