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3 Commits

Author SHA1 Message Date
Evan Cheng
6edb0eac87 Teach machine sink to 
1) Do forward copy propagation. This makes it easier to estimate the cost of the
   instruction being sunk.
2) Break critical edges on demand, including cases where the value is used by
   PHI nodes.
Critical edge splitting is not yet enabled by default.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114227 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-17 22:28:18 +00:00
Dan Gohman
36a0947820 Eliminate more uses of llvm-as and llvm-dis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81290 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-08 23:54:48 +00:00
Evan Cheng
b599979ab5 Fix PR3522. It's not safe to sink into landing pad BB's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64582 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-15 08:36:12 +00:00