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Add timing report for various sub-passes under SelectionDAGISel. 

llvm-svn: 52930
This commit is contained in:
Evan Cheng 2008-06-30 22:10:09 +00:00
parent 6896901e2c
commit 0d3628946f
1 changed files with 26 additions and 0 deletions
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26
llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
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@ -5314,11 +5314,17 @@ void SelectionDAGISel::ComputeLiveOutVRegInfo(SelectionDAG &DAG) {
} }
void SelectionDAGISel::CodeGenAndEmitDAG(SelectionDAG &DAG) { void SelectionDAGISel::CodeGenAndEmitDAG(SelectionDAG &DAG) {
NamedRegionTimer *RegionTimer = 0;
DOUT << "Lowered selection DAG:\n"; DOUT << "Lowered selection DAG:\n";
DEBUG(DAG.dump()); DEBUG(DAG.dump());
// Run the DAG combiner in pre-legalize mode. // Run the DAG combiner in pre-legalize mode.
if (TimePassesIsEnabled)
RegionTimer = new NamedRegionTimer("DAG Combining 1");
DAG.Combine(false, *AA); DAG.Combine(false, *AA);
if (TimePassesIsEnabled)
delete RegionTimer;
DOUT << "Optimized lowered selection DAG:\n"; DOUT << "Optimized lowered selection DAG:\n";
DEBUG(DAG.dump()); DEBUG(DAG.dump());
@ -5329,13 +5335,21 @@ void SelectionDAGISel::CodeGenAndEmitDAG(SelectionDAG &DAG) {
DAG.LegalizeTypes(); DAG.LegalizeTypes();
// Someday even later, enable a dag combine pass here. // Someday even later, enable a dag combine pass here.
#endif #endif
if (TimePassesIsEnabled)
RegionTimer = new NamedRegionTimer("DAG Legalization");
DAG.Legalize(); DAG.Legalize();
if (TimePassesIsEnabled)
delete RegionTimer;
DOUT << "Legalized selection DAG:\n"; DOUT << "Legalized selection DAG:\n";
DEBUG(DAG.dump()); DEBUG(DAG.dump());
// Run the DAG combiner in post-legalize mode. // Run the DAG combiner in post-legalize mode.
if (TimePassesIsEnabled)
RegionTimer = new NamedRegionTimer("DAG Combining 2");
DAG.Combine(true, *AA); DAG.Combine(true, *AA);
if (TimePassesIsEnabled)
delete RegionTimer;
DOUT << "Optimized legalized selection DAG:\n"; DOUT << "Optimized legalized selection DAG:\n";
DEBUG(DAG.dump()); DEBUG(DAG.dump());
@ -5347,14 +5361,26 @@ void SelectionDAGISel::CodeGenAndEmitDAG(SelectionDAG &DAG) {
// Third, instruction select all of the operations to machine code, adding the // Third, instruction select all of the operations to machine code, adding the
// code to the MachineBasicBlock. // code to the MachineBasicBlock.
if (TimePassesIsEnabled)
RegionTimer = new NamedRegionTimer("Instruction Selection");
InstructionSelect(DAG); InstructionSelect(DAG);
if (TimePassesIsEnabled)
delete RegionTimer;
// Emit machine code to BB. This can change 'BB' to the last block being // Emit machine code to BB. This can change 'BB' to the last block being
// inserted into. // inserted into.
if (TimePassesIsEnabled)
RegionTimer = new NamedRegionTimer("Instruction Scheduling");
ScheduleAndEmitDAG(DAG); ScheduleAndEmitDAG(DAG);
if (TimePassesIsEnabled)
delete RegionTimer;
// Perform target specific isel post processing. // Perform target specific isel post processing.
if (TimePassesIsEnabled)
RegionTimer = new NamedRegionTimer("Instruction Selection Post Processing");
InstructionSelectPostProcessing(DAG); InstructionSelectPostProcessing(DAG);
if (TimePassesIsEnabled)
delete RegionTimer;
DOUT << "Selected machine code:\n"; DOUT << "Selected machine code:\n";
DEBUG(BB->dump()); DEBUG(BB->dump());