Evan Cheng d0d0317b9a Committing a good chunk of the pre-register allocation live interval splitting pass. It's handling simple cases and appear to do good things. Next: avoid splitting an interval multiple times; renumber registers when possible; record stack slot live intervals for coloring; rematerialize defs when possible. ...

llvm-svn: 58044

2008-10-23 20:43:13 +00:00

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