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4 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen
a3b61d32d8 Remember to keep track of rematted values. 
llvm-svn: 116962
 2010-10-20 22:50:42 +00:00
Jakob Stoklund Olesen
2edaa2fb24 Move some of the InlineSpiller rematerialization code into LiveRangeEdit. 
llvm-svn: 116951
 2010-10-20 22:00:51 +00:00
Jakob Stoklund Olesen
0f3e98ce2e Move stack slot assignments into LiveRangeEdit. 
All registers created during splitting or spilling are assigned to the same
stack slot as the parent register.

When splitting or rematting, we may not spill at all. In that case the stack
slot is still assigned, but it will be dead.

llvm-svn: 116546
 2010-10-15 00:16:55 +00:00
Jakob Stoklund Olesen
72911e49fa Create a new LiveRangeEdit class to keep track of the new registers created when 
splitting or spillling, and to help with rematerialization.

Use LiveRangeEdit in InlineSpiller and SplitKit. This will eventually make it
possible to share remat code between InlineSpiller and SplitKit.

llvm-svn: 116543
 2010-10-14 23:49:52 +00:00