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Cleanup the stats counters for the new implementation. These actually

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count the right things and have the right names.

llvm-svn: 186667
This commit is contained in:
Chandler Carruth 2013-07-19 10:57:36 +00:00
parent 5d65964bbf
commit 684f6afef6
1 changed files with 36 additions and 12 deletions
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48
lib/Transforms/Scalar/SROA.cpp
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@ -59,9 +59,9 @@ using namespace llvm;
STATISTIC(NumAllocasAnalyzed, "Number of allocas analyzed for replacement");
STATISTIC(NumAllocaPartitions, "Number of alloca partitions formed");
STATISTIC(MaxPartitionsPerAlloca, "Maximum number of partitions");
STATISTIC(NumAllocaPartitionUses, "Number of alloca partition uses found");
STATISTIC(MaxPartitionUsesPerAlloca, "Maximum number of partition uses");
STATISTIC(MaxPartitionsPerAlloca, "Maximum number of partitions per alloca");
STATISTIC(NumAllocaPartitionUses, "Number of alloca partition uses rewritten");
STATISTIC(MaxUsesPerAllocaPartition, "Maximum number of uses of a partition");
STATISTIC(NumNewAllocas, "Number of new, smaller allocas introduced");
STATISTIC(NumPromoted, "Number of allocas promoted to SSA values");
STATISTIC(NumLoadsSpeculated, "Number of loads speculated to allow promotion");
@ -682,15 +682,6 @@ AllocaSlices::AllocaSlices(const DataLayout &DL, AllocaInst &AI)
Slices.erase(std::remove_if(Slices.begin(), Slices.end(), IsSliceDead()),
Slices.end());
// Record how many slices we end up with.
NumAllocaPartitions += Slices.size();
MaxPartitionsPerAlloca =
std::max<unsigned>(Slices.size(), MaxPartitionsPerAlloca);
NumAllocaPartitionUses += Slices.size();
MaxPartitionUsesPerAlloca =
std::max<unsigned>(Slices.size(), MaxPartitionUsesPerAlloca);
}
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
@ -3045,6 +3036,10 @@ bool SROA::rewritePartition(AllocaInst &AI, AllocaSlices &S,
unsigned SPOldSize = SpeculatablePHIs.size();
unsigned SSOldSize = SpeculatableSelects.size();
#if !defined(NDEBUG) || defined(LLVM_ENABLE_STATS)
unsigned NumUses = 0;
#endif
AllocaSliceRewriter Rewriter(*DL, S, *this, AI, *NewAI, BeginOffset,
EndOffset, IsVectorPromotable,
IsIntegerPromotable);
@ -3055,13 +3050,25 @@ bool SROA::rewritePartition(AllocaInst &AI, AllocaSlices &S,
DEBUG(dbgs() << " rewriting split ");
DEBUG(S.printSlice(dbgs(), *SUI, ""));
Promotable &= Rewriter.visit(*SUI);
#if !defined(NDEBUG) || defined(LLVM_ENABLE_STATS)
++NumUses;
#endif
}
for (AllocaSlices::iterator I = B; I != E; ++I) {
DEBUG(dbgs() << " rewriting ");
DEBUG(S.printSlice(dbgs(), I, ""));
Promotable &= Rewriter.visit(I);
#if !defined(NDEBUG) || defined(LLVM_ENABLE_STATS)
++NumUses;
#endif
}
#if !defined(NDEBUG) || defined(LLVM_ENABLE_STATS)
NumAllocaPartitionUses += NumUses;
MaxUsesPerAllocaPartition =
std::max<unsigned>(NumUses, MaxUsesPerAllocaPartition);
#endif
if (Promotable && (SpeculatablePHIs.size() > SPOldSize ||
SpeculatableSelects.size() > SSOldSize)) {
// If we have a promotable alloca except for some unspeculated loads below
@ -3135,6 +3142,10 @@ bool SROA::splitAlloca(AllocaInst &AI, AllocaSlices &S) {
if (S.begin() == S.end())
return false;
#if !defined(NDEBUG) || defined(LLVM_ENABLE_STATS)
unsigned NumPartitions = 0;
#endif
bool Changed = false;
SmallVector<AllocaSlices::iterator, 4> SplitUses;
uint64_t MaxSplitUseEndOffset = 0;
@ -3181,6 +3192,9 @@ bool SROA::splitAlloca(AllocaInst &AI, AllocaSlices &S) {
// Rewrite a sequence of overlapping slices.
Changed |=
rewritePartition(AI, S, SI, SJ, BeginOffset, MaxEndOffset, SplitUses);
#if !defined(NDEBUG) || defined(LLVM_ENABLE_STATS)
++NumPartitions;
#endif
removeFinishedSplitUses(SplitUses, MaxSplitUseEndOffset, MaxEndOffset);
}
@ -3220,6 +3234,10 @@ bool SROA::splitAlloca(AllocaInst &AI, AllocaSlices &S) {
Changed |= rewritePartition(AI, S, SJ, SJ, MaxEndOffset, PostSplitEndOffset,
SplitUses);
#if !defined(NDEBUG) || defined(LLVM_ENABLE_STATS)
++NumPartitions;
#endif
if (SJ == SE)
break; // Skip the rest, we don't need to do any cleanup.
@ -3230,6 +3248,12 @@ bool SROA::splitAlloca(AllocaInst &AI, AllocaSlices &S) {
BeginOffset = SJ->beginOffset();
}
#if !defined(NDEBUG) || defined(LLVM_ENABLE_STATS)
NumAllocaPartitions += NumPartitions;
MaxPartitionsPerAlloca =
std::max<unsigned>(NumPartitions, MaxPartitionsPerAlloca);
#endif
return Changed;
}