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Use BlockFrequency type in more places (NFC) #68266
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@llvm/pr-subscribers-function-specialization @llvm/pr-subscribers-pgo ChangesThe
Patch is 55.72 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/68266.diff 34 Files Affected:
diff --git a/llvm/include/llvm/Analysis/BlockFrequencyInfo.h b/llvm/include/llvm/Analysis/BlockFrequencyInfo.h
index 39507570a1b2c3f..4f0692bad6eeca5 100644
--- a/llvm/include/llvm/Analysis/BlockFrequencyInfo.h
+++ b/llvm/include/llvm/Analysis/BlockFrequencyInfo.h
@@ -73,19 +73,19 @@ class BlockFrequencyInfo {
/// Returns the estimated profile count of \p Freq.
/// This uses the frequency \p Freq and multiplies it by
/// the enclosing function's count (if available) and returns the value.
- std::optional<uint64_t> getProfileCountFromFreq(uint64_t Freq) const;
+ std::optional<uint64_t> getProfileCountFromFreq(BlockFrequency Freq) const;
/// Returns true if \p BB is an irreducible loop header
/// block. Otherwise false.
bool isIrrLoopHeader(const BasicBlock *BB);
// Set the frequency of the given basic block.
- void setBlockFreq(const BasicBlock *BB, uint64_t Freq);
+ void setBlockFreq(const BasicBlock *BB, BlockFrequency Freq);
/// Set the frequency of \p ReferenceBB to \p Freq and scale the frequencies
/// of the blocks in \p BlocksToScale such that their frequencies relative
/// to \p ReferenceBB remain unchanged.
- void setBlockFreqAndScale(const BasicBlock *ReferenceBB, uint64_t Freq,
+ void setBlockFreqAndScale(const BasicBlock *ReferenceBB, BlockFrequency Freq,
SmallPtrSetImpl<BasicBlock *> &BlocksToScale);
/// calculate - compute block frequency info for the given function.
@@ -100,7 +100,7 @@ class BlockFrequencyInfo {
// BB and print it to OS.
raw_ostream &printBlockFreq(raw_ostream &OS, const BasicBlock *BB) const;
- uint64_t getEntryFreq() const;
+ BlockFrequency getEntryFreq() const;
void releaseMemory();
void print(raw_ostream &OS) const;
diff --git a/llvm/include/llvm/Analysis/BlockFrequencyInfoImpl.h b/llvm/include/llvm/Analysis/BlockFrequencyInfoImpl.h
index 54d56f8472c2bcc..b9c0e2759227539 100644
--- a/llvm/include/llvm/Analysis/BlockFrequencyInfoImpl.h
+++ b/llvm/include/llvm/Analysis/BlockFrequencyInfoImpl.h
@@ -527,19 +527,18 @@ class BlockFrequencyInfoImplBase {
getBlockProfileCount(const Function &F, const BlockNode &Node,
bool AllowSynthetic = false) const;
std::optional<uint64_t>
- getProfileCountFromFreq(const Function &F, uint64_t Freq,
+ getProfileCountFromFreq(const Function &F, BlockFrequency Freq,
bool AllowSynthetic = false) const;
bool isIrrLoopHeader(const BlockNode &Node);
- void setBlockFreq(const BlockNode &Node, uint64_t Freq);
+ void setBlockFreq(const BlockNode &Node, BlockFrequency Freq);
raw_ostream &printBlockFreq(raw_ostream &OS, const BlockNode &Node) const;
- raw_ostream &printBlockFreq(raw_ostream &OS,
- const BlockFrequency &Freq) const;
+ raw_ostream &printBlockFreq(raw_ostream &OS, BlockFrequency Freq) const;
- uint64_t getEntryFreq() const {
+ BlockFrequency getEntryFreq() const {
assert(!Freqs.empty());
- return Freqs[0].Integer;
+ return BlockFrequency(Freqs[0].Integer);
}
};
@@ -1029,7 +1028,7 @@ template <class BT> class BlockFrequencyInfoImpl : BlockFrequencyInfoImplBase {
}
std::optional<uint64_t>
- getProfileCountFromFreq(const Function &F, uint64_t Freq,
+ getProfileCountFromFreq(const Function &F, BlockFrequency Freq,
bool AllowSynthetic = false) const {
return BlockFrequencyInfoImplBase::getProfileCountFromFreq(F, Freq,
AllowSynthetic);
@@ -1039,7 +1038,7 @@ template <class BT> class BlockFrequencyInfoImpl : BlockFrequencyInfoImplBase {
return BlockFrequencyInfoImplBase::isIrrLoopHeader(getNode(BB));
}
- void setBlockFreq(const BlockT *BB, uint64_t Freq);
+ void setBlockFreq(const BlockT *BB, BlockFrequency Freq);
void forgetBlock(const BlockT *BB) {
// We don't erase corresponding items from `Freqs`, `RPOT` and other to
@@ -1145,12 +1144,13 @@ void BlockFrequencyInfoImpl<BT>::calculate(const FunctionT &F,
// blocks and unknown blocks.
for (const BlockT &BB : F)
if (!Nodes.count(&BB))
- setBlockFreq(&BB, 0);
+ setBlockFreq(&BB, BlockFrequency());
}
}
template <class BT>
-void BlockFrequencyInfoImpl<BT>::setBlockFreq(const BlockT *BB, uint64_t Freq) {
+void BlockFrequencyInfoImpl<BT>::setBlockFreq(const BlockT *BB,
+ BlockFrequency Freq) {
if (Nodes.count(BB))
BlockFrequencyInfoImplBase::setBlockFreq(getNode(BB), Freq);
else {
diff --git a/llvm/include/llvm/Analysis/ProfileSummaryInfo.h b/llvm/include/llvm/Analysis/ProfileSummaryInfo.h
index 38eb71ba271d06b..e49538bfaf80fb1 100644
--- a/llvm/include/llvm/Analysis/ProfileSummaryInfo.h
+++ b/llvm/include/llvm/Analysis/ProfileSummaryInfo.h
@@ -209,7 +209,7 @@ class ProfileSummaryInfo {
template <typename BFIT>
bool isColdBlock(BlockFrequency BlockFreq, const BFIT *BFI) const {
- auto Count = BFI->getProfileCountFromFreq(BlockFreq.getFrequency());
+ auto Count = BFI->getProfileCountFromFreq(BlockFreq);
return Count && isColdCount(*Count);
}
@@ -315,7 +315,7 @@ class ProfileSummaryInfo {
bool isHotOrColdBlockNthPercentile(int PercentileCutoff,
BlockFrequency BlockFreq,
BFIT *BFI) const {
- auto Count = BFI->getProfileCountFromFreq(BlockFreq.getFrequency());
+ auto Count = BFI->getProfileCountFromFreq(BlockFreq);
if (isHot)
return Count && isHotCountNthPercentile(PercentileCutoff, *Count);
else
diff --git a/llvm/include/llvm/CodeGen/MBFIWrapper.h b/llvm/include/llvm/CodeGen/MBFIWrapper.h
index 714ecc5d4334e40..eca2aadb43d96cc 100644
--- a/llvm/include/llvm/CodeGen/MBFIWrapper.h
+++ b/llvm/include/llvm/CodeGen/MBFIWrapper.h
@@ -38,7 +38,7 @@ class MBFIWrapper {
raw_ostream &printBlockFreq(raw_ostream &OS,
const BlockFrequency Freq) const;
void view(const Twine &Name, bool isSimple = true);
- uint64_t getEntryFreq() const;
+ BlockFrequency getEntryFreq() const;
const MachineBlockFrequencyInfo &getMBFI() { return MBFI; }
private:
diff --git a/llvm/include/llvm/CodeGen/MachineBlockFrequencyInfo.h b/llvm/include/llvm/CodeGen/MachineBlockFrequencyInfo.h
index 1152eefed6e45c3..2c15ed1732d9b47 100644
--- a/llvm/include/llvm/CodeGen/MachineBlockFrequencyInfo.h
+++ b/llvm/include/llvm/CodeGen/MachineBlockFrequencyInfo.h
@@ -66,14 +66,15 @@ class MachineBlockFrequencyInfo : public MachineFunctionPass {
/// Compute the frequency of the block, relative to the entry block.
/// This API assumes getEntryFreq() is non-zero.
double getBlockFreqRelativeToEntryBlock(const MachineBasicBlock *MBB) const {
- assert(getEntryFreq() != 0 && "getEntryFreq() should not return 0 here!");
+ assert(getEntryFreq() != BlockFrequency() &&
+ "getEntryFreq() should not return 0 here!");
return static_cast<double>(getBlockFreq(MBB).getFrequency()) /
- static_cast<double>(getEntryFreq());
+ static_cast<double>(getEntryFreq().getFrequency());
}
std::optional<uint64_t>
getBlockProfileCount(const MachineBasicBlock *MBB) const;
- std::optional<uint64_t> getProfileCountFromFreq(uint64_t Freq) const;
+ std::optional<uint64_t> getProfileCountFromFreq(BlockFrequency Freq) const;
bool isIrrLoopHeader(const MachineBasicBlock *MBB) const;
@@ -101,7 +102,7 @@ class MachineBlockFrequencyInfo : public MachineFunctionPass {
/// Divide a block's BlockFrequency::getFrequency() value by this value to
/// obtain the entry block - relative frequency of said block.
- uint64_t getEntryFreq() const;
+ BlockFrequency getEntryFreq() const;
};
} // end namespace llvm
diff --git a/llvm/include/llvm/Support/BlockFrequency.h b/llvm/include/llvm/Support/BlockFrequency.h
index 12a753301b36aba..8b172ee486aab85 100644
--- a/llvm/include/llvm/Support/BlockFrequency.h
+++ b/llvm/include/llvm/Support/BlockFrequency.h
@@ -26,10 +26,11 @@ class BlockFrequency {
uint64_t Frequency;
public:
- BlockFrequency(uint64_t Freq = 0) : Frequency(Freq) { }
+ BlockFrequency() : Frequency(0) {}
+ explicit BlockFrequency(uint64_t Freq) : Frequency(Freq) {}
/// Returns the maximum possible frequency, the saturation value.
- static uint64_t getMaxFrequency() { return UINT64_MAX; }
+ static BlockFrequency max() { return BlockFrequency(UINT64_MAX); }
/// Returns the frequency as a fixpoint number scaled by the entry
/// frequency.
@@ -112,6 +113,10 @@ class BlockFrequency {
bool operator==(BlockFrequency RHS) const {
return Frequency == RHS.Frequency;
}
+
+ bool operator!=(BlockFrequency RHS) const {
+ return Frequency != RHS.Frequency;
+ }
};
} // namespace llvm
diff --git a/llvm/include/llvm/Transforms/Instrumentation/CFGMST.h b/llvm/include/llvm/Transforms/Instrumentation/CFGMST.h
index 4d31898bb3147b6..269441db7a55896 100644
--- a/llvm/include/llvm/Transforms/Instrumentation/CFGMST.h
+++ b/llvm/include/llvm/Transforms/Instrumentation/CFGMST.h
@@ -101,7 +101,8 @@ template <class Edge, class BBInfo> class CFGMST {
LLVM_DEBUG(dbgs() << "Build Edge on " << F.getName() << "\n");
BasicBlock *Entry = &(F.getEntryBlock());
- uint64_t EntryWeight = (BFI != nullptr ? BFI->getEntryFreq() : 2);
+ uint64_t EntryWeight =
+ (BFI != nullptr ? BFI->getEntryFreq().getFrequency() : 2);
// If we want to instrument the entry count, lower the weight to 0.
if (InstrumentFuncEntry)
EntryWeight = 0;
diff --git a/llvm/lib/Analysis/BlockFrequencyInfo.cpp b/llvm/lib/Analysis/BlockFrequencyInfo.cpp
index b18d04cc73dbca0..c6cb5470463d353 100644
--- a/llvm/lib/Analysis/BlockFrequencyInfo.cpp
+++ b/llvm/lib/Analysis/BlockFrequencyInfo.cpp
@@ -201,7 +201,7 @@ void BlockFrequencyInfo::calculate(const Function &F,
}
BlockFrequency BlockFrequencyInfo::getBlockFreq(const BasicBlock *BB) const {
- return BFI ? BFI->getBlockFreq(BB) : 0;
+ return BFI ? BFI->getBlockFreq(BB) : BlockFrequency(0);
}
std::optional<uint64_t>
@@ -214,7 +214,7 @@ BlockFrequencyInfo::getBlockProfileCount(const BasicBlock *BB,
}
std::optional<uint64_t>
-BlockFrequencyInfo::getProfileCountFromFreq(uint64_t Freq) const {
+BlockFrequencyInfo::getProfileCountFromFreq(BlockFrequency Freq) const {
if (!BFI)
return std::nullopt;
return BFI->getProfileCountFromFreq(*getFunction(), Freq);
@@ -225,17 +225,18 @@ bool BlockFrequencyInfo::isIrrLoopHeader(const BasicBlock *BB) {
return BFI->isIrrLoopHeader(BB);
}
-void BlockFrequencyInfo::setBlockFreq(const BasicBlock *BB, uint64_t Freq) {
+void BlockFrequencyInfo::setBlockFreq(const BasicBlock *BB,
+ BlockFrequency Freq) {
assert(BFI && "Expected analysis to be available");
BFI->setBlockFreq(BB, Freq);
}
void BlockFrequencyInfo::setBlockFreqAndScale(
- const BasicBlock *ReferenceBB, uint64_t Freq,
+ const BasicBlock *ReferenceBB, BlockFrequency Freq,
SmallPtrSetImpl<BasicBlock *> &BlocksToScale) {
assert(BFI && "Expected analysis to be available");
// Use 128 bits APInt to avoid overflow.
- APInt NewFreq(128, Freq);
+ APInt NewFreq(128, Freq.getFrequency());
APInt OldFreq(128, BFI->getBlockFreq(ReferenceBB).getFrequency());
APInt BBFreq(128, 0);
for (auto *BB : BlocksToScale) {
@@ -247,7 +248,7 @@ void BlockFrequencyInfo::setBlockFreqAndScale(
// a hot spot, one of the options proposed in
// https://reviews.llvm.org/D28535#650071 could be used to avoid this.
BBFreq = BBFreq.udiv(OldFreq);
- BFI->setBlockFreq(BB, BBFreq.getLimitedValue());
+ BFI->setBlockFreq(BB, BlockFrequency(BBFreq.getLimitedValue()));
}
BFI->setBlockFreq(ReferenceBB, Freq);
}
@@ -277,8 +278,8 @@ BlockFrequencyInfo::printBlockFreq(raw_ostream &OS,
return BFI ? BFI->printBlockFreq(OS, BB) : OS;
}
-uint64_t BlockFrequencyInfo::getEntryFreq() const {
- return BFI ? BFI->getEntryFreq() : 0;
+BlockFrequency BlockFrequencyInfo::getEntryFreq() const {
+ return BFI ? BFI->getEntryFreq() : BlockFrequency(0);
}
void BlockFrequencyInfo::releaseMemory() { BFI.reset(); }
diff --git a/llvm/lib/Analysis/BlockFrequencyInfoImpl.cpp b/llvm/lib/Analysis/BlockFrequencyInfoImpl.cpp
index 82b1e3b9eede709..583a038cc74e75d 100644
--- a/llvm/lib/Analysis/BlockFrequencyInfoImpl.cpp
+++ b/llvm/lib/Analysis/BlockFrequencyInfoImpl.cpp
@@ -581,30 +581,27 @@ BlockFrequencyInfoImplBase::getBlockFreq(const BlockNode &Node) const {
report_fatal_error(OS.str());
}
#endif
- return 0;
+ return BlockFrequency();
}
- return Freqs[Node.Index].Integer;
+ return BlockFrequency(Freqs[Node.Index].Integer);
}
std::optional<uint64_t>
BlockFrequencyInfoImplBase::getBlockProfileCount(const Function &F,
const BlockNode &Node,
bool AllowSynthetic) const {
- return getProfileCountFromFreq(F, getBlockFreq(Node).getFrequency(),
- AllowSynthetic);
+ return getProfileCountFromFreq(F, getBlockFreq(Node), AllowSynthetic);
}
-std::optional<uint64_t>
-BlockFrequencyInfoImplBase::getProfileCountFromFreq(const Function &F,
- uint64_t Freq,
- bool AllowSynthetic) const {
+std::optional<uint64_t> BlockFrequencyInfoImplBase::getProfileCountFromFreq(
+ const Function &F, BlockFrequency Freq, bool AllowSynthetic) const {
auto EntryCount = F.getEntryCount(AllowSynthetic);
if (!EntryCount)
return std::nullopt;
// Use 128 bit APInt to do the arithmetic to avoid overflow.
APInt BlockCount(128, EntryCount->getCount());
- APInt BlockFreq(128, Freq);
- APInt EntryFreq(128, getEntryFreq());
+ APInt BlockFreq(128, Freq.getFrequency());
+ APInt EntryFreq(128, getEntryFreq().getFrequency());
BlockCount *= BlockFreq;
// Rounded division of BlockCount by EntryFreq. Since EntryFreq is unsigned
// lshr by 1 gives EntryFreq/2.
@@ -627,10 +624,10 @@ BlockFrequencyInfoImplBase::getFloatingBlockFreq(const BlockNode &Node) const {
}
void BlockFrequencyInfoImplBase::setBlockFreq(const BlockNode &Node,
- uint64_t Freq) {
+ BlockFrequency Freq) {
assert(Node.isValid() && "Expected valid node");
assert(Node.Index < Freqs.size() && "Expected legal index");
- Freqs[Node.Index].Integer = Freq;
+ Freqs[Node.Index].Integer = Freq.getFrequency();
}
std::string
@@ -651,9 +648,9 @@ BlockFrequencyInfoImplBase::printBlockFreq(raw_ostream &OS,
raw_ostream &
BlockFrequencyInfoImplBase::printBlockFreq(raw_ostream &OS,
- const BlockFrequency &Freq) const {
+ BlockFrequency Freq) const {
Scaled64 Block(Freq.getFrequency(), 0);
- Scaled64 Entry(getEntryFreq(), 0);
+ Scaled64 Entry(getEntryFreq().getFrequency(), 0);
return OS << Block / Entry;
}
diff --git a/llvm/lib/Analysis/CFGPrinter.cpp b/llvm/lib/Analysis/CFGPrinter.cpp
index f05dd6852d6dc93..9f55371f259b2cf 100644
--- a/llvm/lib/Analysis/CFGPrinter.cpp
+++ b/llvm/lib/Analysis/CFGPrinter.cpp
@@ -318,10 +318,11 @@ bool DOTGraphTraits<DOTFuncInfo *>::isNodeHidden(const BasicBlock *Node,
const DOTFuncInfo *CFGInfo) {
if (HideColdPaths.getNumOccurrences() > 0)
if (auto *BFI = CFGInfo->getBFI()) {
- uint64_t NodeFreq = BFI->getBlockFreq(Node).getFrequency();
- uint64_t EntryFreq = BFI->getEntryFreq();
+ BlockFrequency NodeFreq = BFI->getBlockFreq(Node);
+ BlockFrequency EntryFreq = BFI->getEntryFreq();
// Hide blocks with relative frequency below HideColdPaths threshold.
- if ((double)NodeFreq / EntryFreq < HideColdPaths)
+ if ((double)NodeFreq.getFrequency() / EntryFreq.getFrequency() <
+ HideColdPaths)
return true;
}
if (HideUnreachablePaths || HideDeoptimizePaths) {
diff --git a/llvm/lib/Analysis/ModuleSummaryAnalysis.cpp b/llvm/lib/Analysis/ModuleSummaryAnalysis.cpp
index a88622efa12db8c..058a107691674ce 100644
--- a/llvm/lib/Analysis/ModuleSummaryAnalysis.cpp
+++ b/llvm/lib/Analysis/ModuleSummaryAnalysis.cpp
@@ -413,7 +413,7 @@ static void computeFunctionSummary(
// information.
if (BFI != nullptr && Hotness == CalleeInfo::HotnessType::Unknown) {
uint64_t BBFreq = BFI->getBlockFreq(&BB).getFrequency();
- uint64_t EntryFreq = BFI->getEntryFreq();
+ uint64_t EntryFreq = BFI->getEntryFreq().getFrequency();
ValueInfo.updateRelBlockFreq(BBFreq, EntryFreq);
}
} else {
diff --git a/llvm/lib/CodeGen/CodeGenPrepare.cpp b/llvm/lib/CodeGen/CodeGenPrepare.cpp
index e31b08df7dbbe80..371f6598e6b2b35 100644
--- a/llvm/lib/CodeGen/CodeGenPrepare.cpp
+++ b/llvm/lib/CodeGen/CodeGenPrepare.cpp
@@ -2591,9 +2591,8 @@ bool CodeGenPrepare::dupRetToEnableTailCallOpts(BasicBlock *BB,
(void)FoldReturnIntoUncondBranch(RetI, BB, TailCallBB);
assert(!VerifyBFIUpdates ||
BFI->getBlockFreq(BB) >= BFI->getBlockFreq(TailCallBB));
- BFI->setBlockFreq(
- BB,
- (BFI->getBlockFreq(BB) - BFI->getBlockFreq(TailCallBB)).getFrequency());
+ BFI->setBlockFreq(BB,
+ (BFI->getBlockFreq(BB) - BFI->getBlockFreq(TailCallBB)));
ModifiedDT = ModifyDT::ModifyBBDT;
Changed = true;
++NumRetsDup;
@@ -7067,7 +7066,7 @@ bool CodeGenPrepare::optimizeSelectInst(SelectInst *SI) {
FreshBBs.insert(EndBlock);
}
- BFI->setBlockFreq(EndBlock, BFI->getBlockFreq(StartBlock).getFrequency());
+ BFI->setBlockFreq(EndBlock, BFI->getBlockFreq(StartBlock));
static const unsigned MD[] = {
LLVMContext::MD_prof, LLVMContext::MD_unpredictable,
diff --git a/llvm/lib/CodeGen/GlobalISel/RegBankSelect.cpp b/llvm/lib/CodeGen/GlobalISel/RegBankSelect.cpp
index d201342cd61dbc8..d19d5ab60305ed8 100644
--- a/llvm/lib/CodeGen/GlobalISel/RegBankSelect.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/RegBankSelect.cpp
@@ -449,7 +449,8 @@ RegBankSelect::MappingCost RegBankSelect::computeMapping(
return MappingCost::ImpossibleCost();
// If mapped with InstrMapping, MI will have the recorded cost.
- MappingCost Cost(MBFI ? MBFI->getBlockFreq(MI.getParent()) : 1);
+ MappingCost Cost(MBFI ? MBFI->getBlockFreq(MI.getParent())
+ : BlockFrequency(1));
bool Saturated = Cost.addLocalCost(InstrMapping.getCost());
assert(!Saturated && "Possible mapping saturated the cost");
LLVM_DEBUG(dbgs() << "Evaluating mapping cost for: " << MI);
diff --git a/llvm/lib/CodeGen/MBFIWrapper.cpp b/llvm/lib/CodeGen/MBFIWrapper.cpp
index 5b388be27839464..351e38ebde5cece 100644
--- a/llvm/lib/CodeGen/MBFIWrapper.cpp
+++ b/llvm/lib/CodeGen/MBFIWrapper.cpp
@@ -38,7 +38,7 @@ MBFIWrapper::getBlockProfileCount(const MachineBasicBlock *MBB) const {
// Modified block frequency also impacts profile count. So we should compute
// profile count from new block frequency if it has been changed.
if (I != MergedBBFreq.end())
- return MBFI.getProfileCountFromFreq(I->second.getFrequency());
+ return MBFI.getProfileCountFromFreq(I->second);
return MBFI.getBlockProfileCount(MBB);
}
@@ -57,6 +57,4 @@ void MBFIWrapper::view(const Twine &Name, bool isSimple) {
MBFI.view(Name, isSimple);
}
-uint64_t MBFIWrapper::getEntryFreq() const {
- return MBFI.getEntryFreq();
-}
+BlockFrequency MBFIWrapper::getEntryFreq() const { return MBFI.getEntryFreq(); }
diff --git a/llvm/lib/CodeGen/MachineBlockFrequencyInfo.cpp b/llvm/lib/CodeGen/MachineBlockFrequencyInfo.cpp
index b1cbe525d7e6c16..7d3a2c0e34bffe5 100644
--- a/llvm/lib/CodeGen/MachineBlockFrequencyInfo.cpp
+++ b/llvm/lib/CodeGen/MachineBlockFrequencyInfo.cpp
@@ -228,7 +228,7 @@ void MachineBlockFrequencyInfo::view(const Twine &Name, bool isSimple) const {
BlockFrequency
MachineBlockFrequencyInfo::getBlockFreq(const MachineBasicBlock *MBB) const {
- return MBFI ? MBFI->getBlockFreq(MBB) : 0;
+ return MBFI ? MBFI->getBlockFreq(MBB) : BlockFrequency(0);
}
std::optional<uint64_t> MachineBlockFrequencyInfo::getBlockProfileCount(
@@ -241,7 +241,7 @@ std::optional<uint64_t> MachineBlockFrequencyInfo::getBlockProfi...
[truncated]
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You can test this locally with the following command:git-clang-format --diff cb7cf626d26e50887828d466c0187907719824d4 09bf86aad9e656ceee139a568e45b7721e04dbcc -- llvm/include/llvm/Analysis/BlockFrequencyInfo.h llvm/include/llvm/Analysis/BlockFrequencyInfoImpl.h llvm/include/llvm/Analysis/ProfileSummaryInfo.h llvm/include/llvm/CodeGen/GlobalISel/RegBankSelect.h llvm/include/llvm/CodeGen/MBFIWrapper.h llvm/include/llvm/CodeGen/MachineBlockFrequencyInfo.h llvm/include/llvm/Support/BlockFrequency.h llvm/include/llvm/Transforms/Instrumentation/CFGMST.h llvm/lib/Analysis/BlockFrequencyInfo.cpp llvm/lib/Analysis/BlockFrequencyInfoImpl.cpp llvm/lib/Analysis/CFGPrinter.cpp llvm/lib/Analysis/ModuleSummaryAnalysis.cpp llvm/lib/CodeGen/CodeGenPrepare.cpp llvm/lib/CodeGen/GlobalISel/RegBankSelect.cpp llvm/lib/CodeGen/MBFIWrapper.cpp llvm/lib/CodeGen/MachineBlockFrequencyInfo.cpp llvm/lib/CodeGen/MachineBlockPlacement.cpp llvm/lib/CodeGen/RegAllocGreedy.cpp llvm/lib/CodeGen/SelectOptimize.cpp llvm/lib/CodeGen/ShrinkWrap.cpp llvm/lib/CodeGen/SpillPlacement.cpp llvm/lib/CodeGen/SpillPlacement.h llvm/lib/Target/PowerPC/PPCMIPeephole.cpp llvm/lib/Transforms/IPO/FunctionSpecialization.cpp llvm/lib/Transforms/IPO/SyntheticCountsPropagation.cpp llvm/lib/Transforms/Instrumentation/CGProfile.cpp llvm/lib/Transforms/Instrumentation/PGOMemOPSizeOpt.cpp llvm/lib/Transforms/Scalar/JumpThreading.cpp llvm/lib/Transforms/Scalar/LoopSink.cpp llvm/lib/Transforms/Utils/BreakCriticalEdges.cpp llvm/lib/Transforms/Utils/CodeExtractor.cpp llvm/lib/Transforms/Utils/InlineFunction.cpp llvm/unittests/Analysis/BlockFrequencyInfoTest.cpp llvm/unittests/Support/BlockFrequencyTest.cpp llvm/unittests/Transforms/IPO/FunctionSpecializationTest.cpp View the diff from clang-format here.diff --git a/llvm/lib/CodeGen/MBFIWrapper.cpp b/llvm/lib/CodeGen/MBFIWrapper.cpp
index 4f8b921b0318..2a1937756328 100644
--- a/llvm/lib/CodeGen/MBFIWrapper.cpp
+++ b/llvm/lib/CodeGen/MBFIWrapper.cpp
@@ -48,7 +48,7 @@ raw_ostream & MBFIWrapper::printBlockFreq(raw_ostream &OS,
return MBFI.printBlockFreq(OS, getBlockFreq(MBB));
}
-raw_ostream & MBFIWrapper::printBlockFreq(raw_ostream &OS,
+raw_ostream &MBFIWrapper::printBlockFreq(raw_ostream &OS,
BlockFrequency Freq) const {
return MBFI.printBlockFreq(OS, Freq);
}
|
The `BlockFrequency` class abstracts `uint64_t` frequency values. Use it more consistently in various APIs and disable implicit conversion to make usage more consistent and explicit. - Use `BlockFrequency Freq` parameter for `setBlockFreq`, `getProfileCountFromFreq` and `setBlockFreqAndScale` functions. - Return `BlockFrequency` in `getEntryFreq()` functions. - While on it change some `const BlockFrequency& Freq` parameters to plain `BlockFreqency Freq`. - Mark `BlockFrequency(uint64_t)` constructor as explicit. - Add missing `BlockFrequency::operator!=`. - Remove `uint64_t BlockFreqency::getMaxFrequency()`. - Add `BlockFrequency BlockFrequency::max()` function.
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Making the interfaces to use BlockFrequency consistently is good, but having programming convenience to directly assign from or compare with uint64_t is also handy. Perhaps add member functions? |
There is already I also think it would be worth an experiment to use |
The
BlockFrequency
class abstractsuint64_t
frequency values. Use it more consistently in various APIs and disable implicit conversion to make usage more consistent and explicit.BlockFrequency Freq
parameter forsetBlockFreq
,getProfileCountFromFreq
andsetBlockFreqAndScale
functions.BlockFrequency
ingetEntryFreq()
functions.const BlockFrequency& Freq
parameters to plainBlockFreqency Freq
.BlockFrequency(uint64_t)
constructor as explicit.BlockFrequency::operator!=
.uint64_t BlockFreqency::getMaxFrequency()
.BlockFrequency BlockFrequency::max()
function.