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53 Commits

Author SHA1 Message Date
Lang Hames 933c541270 Added support for renumbering existing index list elements. Removed some junk from the initial numbering code in runOnMachineFunction. 
llvm-svn: 86184
 2009-11-05 22:20:57 +00:00
Lang Hames 289b8a2bd9 Handle empty/tombstone keys for LiveIndex more cleanly. Check for index sanity when constructing index list entries. 
llvm-svn: 86049
 2009-11-04 21:24:15 +00:00
Lang Hames 05fb9637f6 The Indexes Patch. 
This introduces a new pass, SlotIndexes, which is responsible for numbering
instructions for register allocation (and other clients). SlotIndexes numbering
is designed to match the existing scheme, so this patch should not cause any
changes in the generated code.

For consistency, and to avoid naming confusion, LiveIndex has been renamed
SlotIndex.

The processImplicitDefs method of the LiveIntervals analysis has been moved
into its own pass so that it can be run prior to SlotIndexes. This was
necessary to match the existing numbering scheme.

llvm-svn: 85979
 2009-11-03 23:52:08 +00:00