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path: root/lib/CodeGen/ScheduleDAGInstrs.cpp
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2008-11-21Correctly set the isCtrl flag for chain dependencies.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59837 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21Update comments.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59836 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21Set the isAntiDep flag in the MachineInstr scheduler.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59787 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21Use ComputeLatency in the MachineInstr scheduler.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59777 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21Implement ComputeLatency for MachineInstr ScheduleDAGs. FactorDan Gohman
some of the latency computation logic out of the SDNode ScheduleDAG code into a TargetInstrItineraries helper method to help with this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59761 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20Treat mid-block labels the same as terminators when building theDan Gohman
MachineInstr scheduling DAG, meaning they implicitly depend on all preceding defs. This fixes Benchmarks/Shootout-C++/except and Regression/C++/EH/simple_rethrow in -relocation-model=pic -disable-post-RA-scheduler=false mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59747 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Experimental post-pass scheduling support. Post-pass schedulingDan Gohman
is currently off by default, and can be enabled with -disable-post-RA-scheduler=false. This doesn't have a significant impact on most code yet because it doesn't yet do anything to address anti-dependencies and it doesn't attempt to disambiguate memory references. Also, several popular targets don't have pipeline descriptions yet. The majority of the changes here are splitting the SelectionDAG-specific code out of ScheduleDAG, so that ScheduleDAG can be moved to libLLVMCodeGen.a. The interface between ScheduleDAG-using code and the rest of the scheduling code is somewhat rough and will evolve. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59676 91177308-0d34-0410-b5e6-96231b3b80d8