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Do not use computationally expensive scheduling heuristics with -fast.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52971 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2008-07-01 18:05:03 +00:00
parent ebffb660a6
commit 4576f6d7a9
8 changed files with 77 additions and 67 deletions
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12
include/llvm/CodeGen/ScheduleDAG.h
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@@ -396,25 +396,29 @@ namespace llvm {
/// reduction list scheduler.
ScheduleDAG* createBURRListDAGScheduler(SelectionDAGISel *IS,
SelectionDAG *DAG,
MachineBasicBlock *BB);
MachineBasicBlock *BB,
bool Fast);
/// createTDRRListDAGScheduler - This creates a top down register usage
/// reduction list scheduler.
ScheduleDAG* createTDRRListDAGScheduler(SelectionDAGISel *IS,
SelectionDAG *DAG,
MachineBasicBlock *BB);
MachineBasicBlock *BB,
bool Fast);
/// createTDListDAGScheduler - This creates a top-down list scheduler with
/// a hazard recognizer.
ScheduleDAG* createTDListDAGScheduler(SelectionDAGISel *IS,
SelectionDAG *DAG,
MachineBasicBlock *BB);
MachineBasicBlock *BB,
bool Fast);
/// createDefaultScheduler - This creates an instruction scheduler appropriate
/// for the target.
ScheduleDAG* createDefaultScheduler(SelectionDAGISel *IS,
SelectionDAG *DAG,
MachineBasicBlock *BB);
MachineBasicBlock *BB,
bool Fast);
class SUnitIterator : public forward_iterator<SUnit, ptrdiff_t> {
SUnit *Node;