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Commit Graph

12 Commits

Author SHA1 Message Date
Owen Anderson
b3d15a65fc Run computeDomForest() on the set of registers that need to be tested for
interference.

llvm-svn: 44064
2007-11-13 20:13:24 +00:00
Owen Anderson
9f15b689b3 Preserve LiveVariables when doing critical edge splitting.
llvm-svn: 44063
2007-11-13 20:04:45 +00:00
Owen Anderson
84faaa8d14 Break critical edges coming into blocks with PHI nodes.
llvm-svn: 44019
2007-11-12 17:27:27 +00:00
Owen Anderson
40abf86e03 As Chris and Evan pointed out, BreakCriticalMachineEdges doesn't really need
to be a pass of its own.  Instead, move it out into a helper method.

llvm-svn: 44002
2007-11-12 01:05:09 +00:00
Owen Anderson
b735086b08 Take another stab at getting isLiveIn() and isLiveOut() right.
llvm-svn: 43869
2007-11-08 01:32:45 +00:00
Owen Anderson
7021ab1c78 Add some more of StrongPHIElim.
llvm-svn: 43805
2007-11-07 05:17:15 +00:00
Owen Anderson
c3baea32f3 Add a few comments.
llvm-svn: 43755
2007-11-06 05:26:02 +00:00
Owen Anderson
03decb2fca DomForest is a forest of registers, not instructions.
llvm-svn: 43754
2007-11-06 05:22:43 +00:00
Owen Anderson
d0fb7600f9 StrongPHIElimination requires LiveVariables.
llvm-svn: 43751
2007-11-06 04:49:43 +00:00
Owen Anderson
5fff5dcf65 Another step of stronger PHI elimination down.
llvm-svn: 43684
2007-11-04 22:33:26 +00:00
Duncan Sands
c945dfa9af Add a newline at the end of the file.
llvm-svn: 43550
2007-10-31 08:49:24 +00:00
Owen Anderson
ae0530aaf4 Add the skeleton of a better PHI elimination pass.
llvm-svn: 43542
2007-10-31 03:37:57 +00:00