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[ProfileSummary] Make getProfileCount a non-static member function.

This change is required because the notion of count is different for
sample profiling and getProfileCount will need to determine the
underlying profile type.

Differential revision: https://reviews.llvm.org/D33012

llvm-svn: 302597
This commit is contained in:
Easwaran Raman 2017-05-09 23:21:10 +00:00
parent 948f554dba
commit 27264ebea8
6 changed files with 21 additions and 16 deletions

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@ -67,8 +67,8 @@ public:
}
/// Returns the profile count for \p CallInst.
static Optional<uint64_t> getProfileCount(const Instruction *CallInst,
BlockFrequencyInfo *BFI);
Optional<uint64_t> getProfileCount(const Instruction *CallInst,
BlockFrequencyInfo *BFI);
/// \brief Returns true if \p F has hot function entry.
bool isFunctionEntryHot(const Function *F);
/// Returns true if \p F has hot function entry or hot call edge.

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@ -43,6 +43,7 @@ class InvokeInst;
class Loop;
class LoopInfo;
class Module;
class ProfileSummaryInfo;
class ReturnInst;
/// Return an exact copy of the specified module
@ -175,15 +176,17 @@ public:
explicit InlineFunctionInfo(CallGraph *cg = nullptr,
std::function<AssumptionCache &(Function &)>
*GetAssumptionCache = nullptr,
ProfileSummaryInfo *PSI = nullptr,
BlockFrequencyInfo *CallerBFI = nullptr,
BlockFrequencyInfo *CalleeBFI = nullptr)
: CG(cg), GetAssumptionCache(GetAssumptionCache), CallerBFI(CallerBFI),
CalleeBFI(CalleeBFI) {}
: CG(cg), GetAssumptionCache(GetAssumptionCache), PSI(PSI),
CallerBFI(CallerBFI), CalleeBFI(CalleeBFI) {}
/// CG - If non-null, InlineFunction will update the callgraph to reflect the
/// changes it makes.
CallGraph *CG;
std::function<AssumptionCache &(Function &)> *GetAssumptionCache;
ProfileSummaryInfo *PSI;
BlockFrequencyInfo *CallerBFI, *CalleeBFI;
/// StaticAllocas - InlineFunction fills this in with all static allocas that

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@ -232,7 +232,7 @@ computeFunctionSummary(ModuleSummaryIndex &Index, const Module &M,
}
// We should have named any anonymous globals
assert(CalledFunction->hasName());
auto ScaledCount = ProfileSummaryInfo::getProfileCount(&I, BFI);
auto ScaledCount = PSI->getProfileCount(&I, BFI);
auto Hotness = ScaledCount ? getHotness(ScaledCount.getValue(), PSI)
: CalleeInfo::HotnessType::Unknown;

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@ -502,7 +502,7 @@ inlineCallsImpl(CallGraphSCC &SCC, CallGraph &CG,
std::swap(CallSites[i--], CallSites[--FirstCallInSCC]);
InlinedArrayAllocasTy InlinedArrayAllocas;
InlineFunctionInfo InlineInfo(&CG, &GetAssumptionCache);
InlineFunctionInfo InlineInfo(&CG, &GetAssumptionCache, PSI);
// Now that we have all of the call sites, loop over them and inline them if
// it looks profitable to do so.
@ -872,7 +872,7 @@ PreservedAnalyses InlinerPass::run(LazyCallGraph::SCC &InitialC,
// Setup the data structure used to plumb customization into the
// `InlineFunction` routine.
InlineFunctionInfo IFI(
/*cg=*/nullptr, &GetAssumptionCache,
/*cg=*/nullptr, &GetAssumptionCache, PSI,
&FAM.getResult<BlockFrequencyAnalysis>(*(CS.getCaller())),
&FAM.getResult<BlockFrequencyAnalysis>(Callee));

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@ -473,7 +473,7 @@ Function *PartialInlinerImpl::unswitchFunction(Function *F) {
<< ore::NV("Callee", F) << " partially inlined into "
<< ore::NV("Caller", CS.getCaller()));
InlineFunctionInfo IFI(nullptr, GetAssumptionCache);
InlineFunctionInfo IFI(nullptr, GetAssumptionCache, PSI);
InlineFunction(CS, IFI);
NumPartialInlining++;
// update stats

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@ -1396,11 +1396,12 @@ static void updateCallerBFI(BasicBlock *CallSiteBlock,
/// Update the branch metadata for cloned call instructions.
static void updateCallProfile(Function *Callee, const ValueToValueMapTy &VMap,
const Optional<uint64_t> &CalleeEntryCount,
const Instruction *TheCall) {
const Instruction *TheCall,
ProfileSummaryInfo *PSI) {
if (!CalleeEntryCount.hasValue() || CalleeEntryCount.getValue() < 1)
return;
Optional<uint64_t> CallSiteCount =
ProfileSummaryInfo::getProfileCount(TheCall, nullptr);
PSI ? PSI->getProfileCount(TheCall, nullptr) : None;
uint64_t CallCount =
std::min(CallSiteCount.hasValue() ? CallSiteCount.getValue() : 0,
CalleeEntryCount.getValue());
@ -1423,16 +1424,16 @@ static void updateCallProfile(Function *Callee, const ValueToValueMapTy &VMap,
/// The callsite's block count is subtracted from the callee's function entry
/// count.
static void updateCalleeCount(BlockFrequencyInfo *CallerBFI, BasicBlock *CallBB,
Instruction *CallInst, Function *Callee) {
Instruction *CallInst, Function *Callee,
ProfileSummaryInfo *PSI) {
// If the callee has a original count of N, and the estimated count of
// callsite is M, the new callee count is set to N - M. M is estimated from
// the caller's entry count, its entry block frequency and the block frequency
// of the callsite.
Optional<uint64_t> CalleeCount = Callee->getEntryCount();
if (!CalleeCount.hasValue())
if (!CalleeCount.hasValue() || !PSI)
return;
Optional<uint64_t> CallCount =
ProfileSummaryInfo::getProfileCount(CallInst, CallerBFI);
Optional<uint64_t> CallCount = PSI->getProfileCount(CallInst, CallerBFI);
if (!CallCount.hasValue())
return;
// Since CallSiteCount is an estimate, it could exceed the original callee
@ -1635,9 +1636,10 @@ bool llvm::InlineFunction(CallSite CS, InlineFunctionInfo &IFI,
updateCallerBFI(OrigBB, VMap, IFI.CallerBFI, IFI.CalleeBFI,
CalledFunc->front());
updateCallProfile(CalledFunc, VMap, CalledFunc->getEntryCount(), TheCall);
updateCallProfile(CalledFunc, VMap, CalledFunc->getEntryCount(), TheCall,
IFI.PSI);
// Update the profile count of callee.
updateCalleeCount(IFI.CallerBFI, OrigBB, TheCall, CalledFunc);
updateCalleeCount(IFI.CallerBFI, OrigBB, TheCall, CalledFunc, IFI.PSI);
// Inject byval arguments initialization.
for (std::pair<Value*, Value*> &Init : ByValInit)