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3 Commits

Author SHA1 Message Date
Chandler Carruth
4315093eb7 Silence an ambiguous else warning from GCC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112809 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-02 07:08:05 +00:00
Lang Hames
7642572e6d Added counters for PBQP reduction rules. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112807 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-02 05:37:52 +00:00
Lang Hames
030c4bfbc9 New PBQP solver. 
* Fixed a reduction bug which occasionally led to infinite-cost (invalid)
  register allocation solutions despite the existence finite-cost solutions.
* Significantly reduced memory usage (>50% reduction).
* Simplified a lot of the solver code.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94514 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 04:49:58 +00:00