c698417e52
Add SplitEditor to SplitKit. This class will be used to edit live intervals and
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rewrite instructions for live range splitting.
Still work in progress.
llvm-svn: 109469
2010-07-26 23:44:11 +00:00
0fef9dda8e
Change the createSpiller interface to take a MachineFunctionPass argument.
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The spillers can pluck the analyses they need from the pass reference.
Switch some never-null pointers to references.
llvm-svn: 108969
2010-07-20 23:50:15 +00:00
ed4075cc3b
Implement loop splitting analysis.
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Determine which loop exit blocks need a 'pre-exit' block inserted.
Recognize when this would be impossible.
llvm-svn: 108941
2010-07-20 21:46:58 +00:00
ff095507e3
Appease the colonials.
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llvm-svn: 108845
2010-07-20 16:12:37 +00:00
36d12c679d
Beginning SplitKit - utility classes for live range splitting.
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This is a work in progress. So far we have some basic loop analysis to help
determine where it is useful to split a live range around a loop.
The actual loop splitting code from Splitter.cpp is also going to move in here.
llvm-svn: 108842
2010-07-20 15:41:07 +00:00
Jakob Stoklund Olesen