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* Make post-ra scheduling, anti-dep breaking, and register scavenger ↵Evan Cheng2010-06-161-1/+4
| | | | | | (conservatively) aware of predicated instructions. This enables ARM to move if-conversion before post-ra scheduler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106091 91177308-0d34-0410-b5e6-96231b3b80d8
* Make BreakAntiDependencies' SUnits argument const, and make the BeginDan Gohman2010-04-191-3/+3
| | | | | | | and End arguments by-value rather than by-reference. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101830 91177308-0d34-0410-b5e6-96231b3b80d8
* Anti-dependency breaking needs to be careful regarding instructions withJim Grosbach2010-01-061-1/+2
| | | | | | multiple register definitions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92864 91177308-0d34-0410-b5e6-96231b3b80d8
* 80 column and whitespace cleanupJim Grosbach2010-01-061-2/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92837 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove some old experimental code that is no longer needed. Remove ↵David Goodwin2009-11-201-8/+1
| | | | | | additional, speculative scheduling pass as its cost did not translate into significant performance improvement. Minor tweaks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89471 91177308-0d34-0410-b5e6-96231b3b80d8
* Do a scheduling pass ignoring anti-dependencies to identify candidate ↵David Goodwin2009-11-031-0/+4
| | | | | | registers that should be renamed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85939 91177308-0d34-0410-b5e6-96231b3b80d8
* Make AntiDepReg.h internal.David Goodwin2009-10-281-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85412 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow the aggressive anti-dep breaker to process the same region multiple ↵David Goodwin2009-10-261-0/+4
| | | | | | times. This is necessary because new anti-dependencies are exposed when "current" ones are broken. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85166 91177308-0d34-0410-b5e6-96231b3b80d8
* Break anti-dependence breaking out into its own class.David Goodwin2009-10-261-0/+95
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85127 91177308-0d34-0410-b5e6-96231b3b80d8