Chris Lattner 3e089ae0b8 reimplement dfs number computation to be significantly faster. This speeds up
natural loop canonicalization (which does many cfg xforms) by 4.3x, for 
example.  This also fixes a bug in postdom dfnumber computation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40920 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-08 05:51:24 +00:00
..
2007-08-05 19:27:01 +00:00
2007-05-05 23:49:02 +00:00
2007-08-05 20:06:04 +00:00