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| author | Dan Gohman <gohman@apple.com> | 2008-11-14 00:33:17 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-11-14 00:33:17 +0000 |
| commit | db8b95a4fa86b23c540a05bef5f5b17fd46fd3b9 (patch) | |
| tree | d3a027fa1537a643a606239a18c84c62dfd56736 /llvm/lib/CodeGen/SelectionDAG | |
| parent | 1a21ab69250b7566947296576404bc94e4fbd178 (diff) | |
| download | bcm5719-llvm-db8b95a4fa86b23c540a05bef5f5b17fd46fd3b9.tar.gz bcm5719-llvm-db8b95a4fa86b23c540a05bef5f5b17fd46fd3b9.zip | |
For post-regalloc scheduling, remove the instructions from the block
before re-inserting them.
llvm-svn: 59281
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/ScheduleDAGEmit.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGEmit.cpp b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGEmit.cpp index d60dd493576..0c679734ea1 100644 --- a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGEmit.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGEmit.cpp @@ -675,6 +675,12 @@ void ScheduleDAG::EmitCrossRCCopy(SUnit *SU, /// EmitSchedule - Emit the machine code in scheduled order. MachineBasicBlock *ScheduleDAG::EmitSchedule() { + // For post-regalloc scheduling, we're rescheduling the instructions in the + // block, so start by removing them from the block. + if (!DAG) + while (!BB->empty()) + BB->remove(BB->begin()); + DenseMap<SDValue, unsigned> VRBaseMap; DenseMap<SUnit*, unsigned> CopyVRBaseMap; for (unsigned i = 0, e = Sequence.size(); i != e; i++) { |
