[llvm] r302597 - [ProfileSummary] Make getProfileCount a non-static member function.

Teresa Johnson via llvm-commits llvm-commits at lists.llvm.org
Wed May 10 12:05:43 PDT 2017


Should be fixed by r302705.
Teresa

On Wed, May 10, 2017 at 11:09 AM, Easwaran Raman <eraman at google.com> wrote:

> Thanks for letting me know. Teresa is testing a fix and will submit that
> soon.
>
> On Wed, May 10, 2017 at 10:53 AM, Kostya Serebryany <kcc at google.com>
> wrote:
>
>> This makes the ubsan bot sad, please fix or revert ASAP.
>> http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-
>> fast/builds/4831/steps/check-llvm%20ubsan/logs/stdio
>>
>> lib/Analysis/ModuleSummaryAnalysis.cpp:235:33: runtime error: member call on null pointer of type 'llvm::ProfileSummaryInfo'
>>     #0 0x216ffea in computeFunctionSummary(llvm::ModuleSummaryIndex&, llvm::Module const&, llvm::Function const&, llvm::BlockFrequencyInfo*, llvm::ProfileSummaryInfo*, bool, llvm::DenseSet<unsigned long, llvm::DenseMapInfo<unsigned long> >&) /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/lib/Analysis/ModuleSummaryAnalysis.cpp:235:33
>>
>>
>>
>>
>> On Tue, May 9, 2017 at 4:21 PM, Easwaran Raman via llvm-commits <
>> llvm-commits at lists.llvm.org> wrote:
>>
>>> Author: eraman
>>> Date: Tue May  9 18:21:10 2017
>>> New Revision: 302597
>>>
>>> URL: http://llvm.org/viewvc/llvm-project?rev=302597&view=rev
>>> Log:
>>> [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
>>>
>>> Modified:
>>>     llvm/trunk/include/llvm/Analysis/ProfileSummaryInfo.h
>>>     llvm/trunk/include/llvm/Transforms/Utils/Cloning.h
>>>     llvm/trunk/lib/Analysis/ModuleSummaryAnalysis.cpp
>>>     llvm/trunk/lib/Transforms/IPO/Inliner.cpp
>>>     llvm/trunk/lib/Transforms/IPO/PartialInlining.cpp
>>>     llvm/trunk/lib/Transforms/Utils/InlineFunction.cpp
>>>
>>> Modified: llvm/trunk/include/llvm/Analysis/ProfileSummaryInfo.h
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/
>>> Analysis/ProfileSummaryInfo.h?rev=302597&r1=302596&r2=302597&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/include/llvm/Analysis/ProfileSummaryInfo.h (original)
>>> +++ llvm/trunk/include/llvm/Analysis/ProfileSummaryInfo.h Tue May  9
>>> 18:21:10 2017
>>> @@ -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.
>>>
>>> Modified: llvm/trunk/include/llvm/Transforms/Utils/Cloning.h
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/
>>> Transforms/Utils/Cloning.h?rev=302597&r1=302596&r2=302597&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/include/llvm/Transforms/Utils/Cloning.h (original)
>>> +++ llvm/trunk/include/llvm/Transforms/Utils/Cloning.h Tue May  9
>>> 18:21:10 2017
>>> @@ -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
>>>
>>> Modified: llvm/trunk/lib/Analysis/ModuleSummaryAnalysis.cpp
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Analysis/
>>> ModuleSummaryAnalysis.cpp?rev=302597&r1=302596&r2=302597&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/lib/Analysis/ModuleSummaryAnalysis.cpp (original)
>>> +++ llvm/trunk/lib/Analysis/ModuleSummaryAnalysis.cpp Tue May  9
>>> 18:21:10 2017
>>> @@ -232,7 +232,7 @@ computeFunctionSummary(ModuleSummaryInde
>>>          }
>>>          // 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;
>>>
>>>
>>> Modified: llvm/trunk/lib/Transforms/IPO/Inliner.cpp
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transform
>>> s/IPO/Inliner.cpp?rev=302597&r1=302596&r2=302597&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/lib/Transforms/IPO/Inliner.cpp (original)
>>> +++ llvm/trunk/lib/Transforms/IPO/Inliner.cpp Tue May  9 18:21:10 2017
>>> @@ -502,7 +502,7 @@ inlineCallsImpl(CallGraphSCC &SCC, CallG
>>>          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(LazyC
>>>        // 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));
>>>
>>>
>>> Modified: llvm/trunk/lib/Transforms/IPO/PartialInlining.cpp
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transform
>>> s/IPO/PartialInlining.cpp?rev=302597&r1=302596&r2=302597&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/lib/Transforms/IPO/PartialInlining.cpp (original)
>>> +++ llvm/trunk/lib/Transforms/IPO/PartialInlining.cpp Tue May  9
>>> 18:21:10 2017
>>> @@ -473,7 +473,7 @@ Function *PartialInlinerImpl::unswitchFu
>>>               << 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
>>>
>>> Modified: llvm/trunk/lib/Transforms/Utils/InlineFunction.cpp
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transform
>>> s/Utils/InlineFunction.cpp?rev=302597&r1=302596&r2=302597&view=diff
>>> ============================================================
>>> ==================
>>> --- llvm/trunk/lib/Transforms/Utils/InlineFunction.cpp (original)
>>> +++ llvm/trunk/lib/Transforms/Utils/InlineFunction.cpp Tue May  9
>>> 18:21:10 2017
>>> @@ -1396,11 +1396,12 @@ static void updateCallerBFI(BasicBlock *
>>>  /// 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 *
>>>  /// 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, I
>>>        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)
>>>
>>>
>>> _______________________________________________
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>>> llvm-commits at lists.llvm.org
>>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-commits
>>>
>>
>>
>


-- 
Teresa Johnson |  Software Engineer |  tejohnson at google.com |  408-460-2413
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