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5b8ec614f5
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24 Commits

Author SHA1 Message Date
Devang Patel
5b8ec614f5 Cleanup removeBlocks. 
Use dominance frontier to fixup incoming edges of successor blocks not domianted by DeadBB.
Use df_iterator to walk and delete basic blocks dominated by DeadBB.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41095 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 03:31:47 +00:00
Reid Spencer
e9dd95ad9c Remove unneeded header file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41094 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 03:01:04 +00:00
Devang Patel
3fe4f2135a Avoid triangle loops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41093 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 02:14:55 +00:00
Devang Patel
4e8061cbda Avoid nested loops at the moment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41090 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 23:53:57 +00:00
Devang Patel
a6a8663894 Fix dominance frontier update while removing blocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41082 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 18:35:57 +00:00
Devang Patel
ada054a9ea Handle last value assignments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41063 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 01:30:57 +00:00
Devang Patel
ebcb52aa89 StartValue is already calculated. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41062 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 00:15:45 +00:00
Devang Patel
21eca2a9cf Preserve simple analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41054 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-13 22:22:13 +00:00
Devang Patel
fc4c5f82f8 Preserve dominator info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41053 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-13 22:13:24 +00:00
Devang Patel
98147a306e Split loops and do CFG cleanup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41029 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-12 07:02:51 +00:00
Reid Spencer
9626a9c700 Remove unused variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41028 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-12 04:45:36 +00:00
Devang Patel
423c8b29b8 Clone loop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40998 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-10 18:07:13 +00:00
Devang Patel
acb8c09e27 Remove unncessary duplication. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40979 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-10 00:59:03 +00:00
Devang Patel
23a19f82a7 Calculate exit and start value of true loop and false loop respectively. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40978 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-10 00:53:35 +00:00
Devang Patel
bacf5193cf ExitCondition and Induction variable are loop constraints 
not split condition constraints.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40977 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-10 00:33:50 +00:00
Devang Patel
c9d123dca9 Traverse loop blocks' terminators to find split candidates. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40960 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-09 01:39:01 +00:00
Devang Patel
9704fcf505 Add cost analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40952 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-08 22:25:28 +00:00
Devang Patel
787a713bb2 Preserve dom info while processing one iteration loop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40947 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-08 21:39:47 +00:00
Devang Patel
9021c7001e Clear split info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40944 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-08 21:18:27 +00:00
Devang Patel
71554b8e3c Handle multiple split conditions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40941 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-08 21:02:17 +00:00
Devang Patel
6a2bfdaab6 Embrace patch review feedback. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40915 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-08 01:51:27 +00:00
Devang Patel
002fe25dd7 Fix new compare instruction's signness. Caught by Chris during review. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40912 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-07 23:17:52 +00:00
Devang Patel
8431a1cbcc Use eraseFromParent(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40903 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-07 17:45:35 +00:00
Devang Patel
fee76bd9ba Begin loop index split pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40883 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-07 00:25:56 +00:00