void ExternalCallEventLogEntry_ProcessDiagInfoPre(EventLogEntry* evt, Js::JavascriptFunction* function, UnlinkableSlabAllocator& alloc)
{
ExternalCallEventLogEntry* callEvt = GetInlineEventDataAs<ExternalCallEventLogEntry, EventKind::ExternalCallTag>(evt);
Js::JavascriptString* displayName = function->GetDisplayName();
alloc.CopyStringIntoWLength(displayName->GetSz(), displayName->GetLength(), callEvt->AdditionalInfo->FunctionName);
}
void JavascriptExternalFunction::ExtractSnapObjectDataInto(TTD::NSSnapObjects::SnapObject* objData, TTD::SlabAllocator& alloc)
{
Js::JavascriptString* nameString = this->GetDisplayName();
TTD::TTString* snapName = alloc.SlabAllocateStruct<TTD::TTString>();
alloc.CopyStringIntoWLength(nameString->GetSz(), nameString->GetLength(), *snapName);
TTD::NSSnapObjects::StdExtractSetKindSpecificInfo<TTD::TTString*, TTD::NSSnapObjects::SnapObjectType::SnapExternalFunctionObject>(objData, snapName);
}
void
SwitchIRBuilder::BuildMultiBrCaseInstrForStrings(uint32 targetOffset)
{
Assert(m_caseNodes && m_caseNodes->Count() && m_profiledSwitchInstr && !m_isAsmJs);
if (m_caseNodes->Count() < CONFIG_FLAG(MaxLinearStringCaseCount))
{
int start = 0;
int end = m_caseNodes->Count() - 1;
BuildLinearTraverseInstr(start, end, targetOffset);
ResetCaseNodes();
return;
}
IR::Opnd * srcOpnd = m_caseNodes->Item(0)->GetCaseInstr()->GetSrc1(); // Src1 is same in all the caseNodes
IR::MultiBranchInstr * multiBranchInstr = IR::MultiBranchInstr::New(Js::OpCode::MultiBr, srcOpnd, m_func);
uint32 lastCaseOffset = m_caseNodes->Item(m_caseNodes->Count() - 1)->GetOffset();
uint caseCount = m_caseNodes->Count();
bool generateDictionary = true;
char16 minChar = USHORT_MAX;
char16 maxChar = 0;
// Either the jump table is within the limit (<= 128) or it is dense (<= 2 * case Count)
uint const maxJumpTableSize = max<uint>(CONFIG_FLAG(MaxSingleCharStrJumpTableSize), CONFIG_FLAG(MaxSingleCharStrJumpTableRatio) * caseCount);
if (this->m_seenOnlySingleCharStrCaseNodes)
{
generateDictionary = false;
for (uint i = 0; i < caseCount; i++)
{
Js::JavascriptString * str = m_caseNodes->Item(i)->GetSrc2StringConstLocal();
Assert(str->GetLength() == 1);
char16 currChar = str->GetString()[0];
minChar = min(minChar, currChar);
maxChar = max(maxChar, currChar);
if ((uint)(maxChar - minChar) > maxJumpTableSize)
{
generateDictionary = true;
break;
}
}
}
if (generateDictionary)
{
multiBranchInstr->CreateBranchTargetsAndSetDefaultTarget(caseCount, IR::MultiBranchInstr::StrDictionary, targetOffset);
//Adding normal cases to the instruction (except the default case, which we do it later)
for (uint i = 0; i < caseCount; i++)
{
Js::JavascriptString * str = m_caseNodes->Item(i)->GetSrc2StringConstLocal();
uint32 caseTargetOffset = m_caseNodes->Item(i)->GetTargetOffset();
multiBranchInstr->AddtoDictionary(caseTargetOffset, str, m_caseNodes->Item(i)->GetSrc2StringConst());
}
}
else
{
// If we are only going to save 16 entries, just start from 0 so we don't have to subtract
if (minChar < 16)
{
minChar = 0;
}
multiBranchInstr->m_baseCaseValue = minChar;
multiBranchInstr->m_lastCaseValue = maxChar;
uint jumpTableSize = maxChar - minChar + 1;
multiBranchInstr->CreateBranchTargetsAndSetDefaultTarget(jumpTableSize, IR::MultiBranchInstr::SingleCharStrJumpTable, targetOffset);
for (uint i = 0; i < jumpTableSize; i++)
{
// Initialize all the entries to the default target first.
multiBranchInstr->AddtoJumpTable(targetOffset, i);
}
//Adding normal cases to the instruction (except the default case, which we do it later)
for (uint i = 0; i < caseCount; i++)
{
Js::JavascriptString * str = m_caseNodes->Item(i)->GetSrc2StringConstLocal();
Assert(str->GetLength() == 1);
uint32 caseTargetOffset = m_caseNodes->Item(i)->GetTargetOffset();
multiBranchInstr->AddtoJumpTable(caseTargetOffset, str->GetString()[0] - minChar);
}
}
multiBranchInstr->m_isSwitchBr = true;
m_adapter->CreateRelocRecord(multiBranchInstr, lastCaseOffset, targetOffset);
m_adapter->AddInstr(multiBranchInstr, lastCaseOffset);
BuildBailOnNotString();
ResetCaseNodes();
}
