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[MachinePipeliner][NFC] Do resource tracking log only when requested.

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In most cases we don't need to do resource tracking debug,
so leave them off by default.

llvm-svn: 363733
This commit is contained in:
Jinsong Ji 2019-06-18 20:24:49 +00:00
parent a1e29a1cdd
commit e9caf721a8
1 changed files with 43 additions and 22 deletions
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65
lib/CodeGen/MachinePipeliner.cpp
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@ -148,6 +148,11 @@ static cl::opt<bool> SwpIgnoreRecMII("pipeliner-ignore-recmii",
cl::ReallyHidden, cl::init(false),
cl::ZeroOrMore, cl::desc("Ignore RecMII"));
static cl::opt<bool> SwpShowResMask("pipeliner-show-mask", cl::Hidden,
cl::init(false));
static cl::opt<bool> SwpDebugResource("pipeliner-dbg-res", cl::Hidden,
cl::init(false));
namespace llvm {
// A command line option to enable the CopyToPhi DAG mutation.
@ -1022,8 +1027,9 @@ unsigned SwingSchedulerDAG::calculateResMII() {
<< ", NumCycles:" << NumCycles << "\n");
// Add new DFAs, if needed, to reserve resources.
for (unsigned C = ReservedCycles; C < NumCycles; ++C) {
LLVM_DEBUG(dbgs() << "NewResource created to reserve resources"
<< "\n");
LLVM_DEBUG(if (SwpDebugResource) dbgs()
<< "NewResource created to reserve resources"
<< "\n");
ResourceManager *NewResource = new ResourceManager(&MF.getSubtarget());
assert(NewResource->canReserveResources(*MI) && "Reserve error.");
NewResource->reserveResources(*MI);
@ -3971,19 +3977,25 @@ void ResourceManager::initProcResourceVectors(
ProcResourceID++;
}
LLVM_DEBUG({
dbgs() << "ProcResourceDesc:\n";
for (unsigned I = 1, E = SM.getNumProcResourceKinds(); I < E; ++I) {
const MCProcResourceDesc *ProcResource = SM.getProcResource(I);
dbgs() << format(" %16s(%2d): Mask: 0x%08x, NumUnits:%2d\n",
ProcResource->Name, I, Masks[I], ProcResource->NumUnits);
if (SwpShowResMask) {
dbgs() << "ProcResourceDesc:\n";
for (unsigned I = 1, E = SM.getNumProcResourceKinds(); I < E; ++I) {
const MCProcResourceDesc *ProcResource = SM.getProcResource(I);
dbgs() << format(" %16s(%2d): Mask: 0x%08x, NumUnits:%2d\n",
ProcResource->Name, I, Masks[I],
ProcResource->NumUnits);
}
dbgs() << " -----------------\n";
}
dbgs() << " -----------------\n";
});
}
bool ResourceManager::canReserveResources(const MCInstrDesc *MID) const {
LLVM_DEBUG({ dbgs() << "canReserveResources:\n"; });
LLVM_DEBUG({
if (SwpDebugResource)
dbgs() << "canReserveResources:\n";
});
if (UseDFA)
return DFAResources->canReserveResources(MID);
@ -4006,20 +4018,24 @@ bool ResourceManager::canReserveResources(const MCInstrDesc *MID) const {
SM.getProcResource(I->ProcResourceIdx);
unsigned NumUnits = ProcResource->NumUnits;
LLVM_DEBUG({
dbgs() << format(" %16s(%2d): Count: %2d, NumUnits:%2d, Cycles:%2d\n",
ProcResource->Name, I->ProcResourceIdx,
ProcResourceCount[I->ProcResourceIdx], NumUnits,
I->Cycles);
if (SwpDebugResource)
dbgs() << format(" %16s(%2d): Count: %2d, NumUnits:%2d, Cycles:%2d\n",
ProcResource->Name, I->ProcResourceIdx,
ProcResourceCount[I->ProcResourceIdx], NumUnits,
I->Cycles);
});
if (ProcResourceCount[I->ProcResourceIdx] >= NumUnits)
return false;
}
LLVM_DEBUG(dbgs() << "return true\n\n";);
LLVM_DEBUG(if (SwpDebugResource) dbgs() << "return true\n\n";);
return true;
}
void ResourceManager::reserveResources(const MCInstrDesc *MID) {
LLVM_DEBUG({ dbgs() << "reserveResources:\n"; });
LLVM_DEBUG({
if (SwpDebugResource)
dbgs() << "reserveResources:\n";
});
if (UseDFA)
return DFAResources->reserveResources(MID);
@ -4039,15 +4055,20 @@ void ResourceManager::reserveResources(const MCInstrDesc *MID) {
continue;
++ProcResourceCount[PRE.ProcResourceIdx];
LLVM_DEBUG({
const MCProcResourceDesc *ProcResource =
SM.getProcResource(PRE.ProcResourceIdx);
dbgs() << format(" %16s(%2d): Count: %2d, NumUnits:%2d, Cycles:%2d\n",
ProcResource->Name, PRE.ProcResourceIdx,
ProcResourceCount[PRE.ProcResourceIdx],
ProcResource->NumUnits, PRE.Cycles);
if (SwpDebugResource) {
const MCProcResourceDesc *ProcResource =
SM.getProcResource(PRE.ProcResourceIdx);
dbgs() << format(" %16s(%2d): Count: %2d, NumUnits:%2d, Cycles:%2d\n",
ProcResource->Name, PRE.ProcResourceIdx,
ProcResourceCount[PRE.ProcResourceIdx],
ProcResource->NumUnits, PRE.Cycles);
}
});
}
LLVM_DEBUG({ dbgs() << "reserveResources: done!\n\n"; });
LLVM_DEBUG({
if (SwpDebugResource)
dbgs() << "reserveResources: done!\n\n";
});
}
bool ResourceManager::canReserveResources(const MachineInstr &MI) const {