[llvm-mca] Move the logic that prints scheduler statistics from BackendStatistics to its own view.
Added flag -scheduler-stats to print scheduler related statistics.
llvm-svn: 329792
diff --git a/llvm/tools/llvm-mca/BackendStatistics.cpp b/llvm/tools/llvm-mca/BackendStatistics.cpp
index c189a3a..4e378b1 100644
--- a/llvm/tools/llvm-mca/BackendStatistics.cpp
+++ b/llvm/tools/llvm-mca/BackendStatistics.cpp
@@ -21,42 +21,11 @@
namespace mca {
void BackendStatistics::onInstructionEvent(const HWInstructionEvent &Event) {
- switch (Event.Type) {
- default:
- break;
- case HWInstructionEvent::Retired: {
+ if (Event.Type == HWInstructionEvent::Retired)
++NumRetired;
- break;
- }
- case HWInstructionEvent::Issued:
- ++NumIssued;
- }
}
-void BackendStatistics::onReservedBuffers(ArrayRef<unsigned> Buffers) {
- for (const unsigned Buffer : Buffers) {
- if (BufferedResources.find(Buffer) != BufferedResources.end()) {
- BufferUsage &BU = BufferedResources[Buffer];
- BU.SlotsInUse++;
- BU.MaxUsedSlots = std::max(BU.MaxUsedSlots, BU.SlotsInUse);
- continue;
- }
-
- BufferedResources.insert(
- std::pair<unsigned, BufferUsage>(Buffer, {1U, 1U}));
- }
-}
-
-void BackendStatistics::onReleasedBuffers(ArrayRef<unsigned> Buffers) {
- for (const unsigned Buffer : Buffers) {
- assert(BufferedResources.find(Buffer) != BufferedResources.end() &&
- "Buffered resource not in map?");
- BufferUsage &BU = BufferedResources[Buffer];
- BU.SlotsInUse--;
- }
-}
-
-void BackendStatistics::printRetireUnitStatistics(llvm::raw_ostream &OS) const {
+void BackendStatistics::printView(llvm::raw_ostream &OS) const {
std::string Buffer;
raw_string_ostream TempStream(Buffer);
TempStream << "\n\nRetire Control Unit - "
@@ -78,46 +47,4 @@
OS << Buffer;
}
-void BackendStatistics::printSchedulerStatistics(llvm::raw_ostream &OS) const {
- std::string Buffer;
- raw_string_ostream TempStream(Buffer);
- TempStream << "\n\nSchedulers - number of cycles where we saw N instructions "
- "issued:\n";
- TempStream << "[# issued], [# cycles]\n";
- for (const std::pair<unsigned, unsigned> &Entry : IssuedPerCycle) {
- TempStream << " " << Entry.first << ", " << Entry.second << " ("
- << format("%.1f", ((double)Entry.second / NumCycles) * 100)
- << "%)\n";
- }
-
- TempStream.flush();
- OS << Buffer;
-}
-
-void BackendStatistics::printSchedulerUsage(raw_ostream &OS,
- const MCSchedModel &SM) const {
- std::string Buffer;
- raw_string_ostream TempStream(Buffer);
- TempStream << "\n\nScheduler's queue usage:\n";
- // Early exit if no buffered resources were consumed.
- if (BufferedResources.empty()) {
- TempStream << "No scheduler resources used.\n";
- TempStream.flush();
- OS << Buffer;
- return;
- }
-
- for (unsigned I = 0, E = SM.getNumProcResourceKinds(); I < E; ++I) {
- const MCProcResourceDesc &ProcResource = *SM.getProcResource(I);
- if (ProcResource.BufferSize <= 0)
- continue;
-
- const BufferUsage &BU = BufferedResources.lookup(I);
- TempStream << ProcResource.Name << ", " << BU.MaxUsedSlots << '/'
- << ProcResource.BufferSize << '\n';
- }
-
- TempStream.flush();
- OS << Buffer;
-}
} // namespace mca