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55 Commits

Author SHA1 Message Date
Owen Anderson 1310e42803 Make LCSSA insert proper Phi nodes throughout the rest of the CFG by computing 
the iterated Dominance Frontier of the loop-closure Phi's.  This is the
second phase of the LCSSA pass.  The third phase (coming soon) will be to
update all uses of loop variables to use the loop-closure Phi's instead.

llvm-svn: 28524
 2006-05-27 18:47:11 +00:00
Owen Anderson b4e16996f1 A few small clean-ups, and the addition of an LCSSA statistic. 
llvm-svn: 28512
 2006-05-27 00:31:37 +00:00
Owen Anderson 6e047ab8fc Fix a copy-and-paste-o that would break some compilers. 
llvm-svn: 28507
 2006-05-26 21:19:17 +00:00
Owen Anderson f3dd3e2bfd Clean up and refactor LCSSA a bunch. It should also run faster now, though 
there's still a lot of work to be done on it.

llvm-svn: 28506
 2006-05-26 21:11:53 +00:00
Owen Anderson 8eca8910b6 Skeletal LCSSA pass. This is currently non-functional. Expect functionality 
and documentation updates soo.

llvm-svn: 28495
 2006-05-26 13:58:26 +00:00