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https://github.com/RPCS3/llvm.git
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[codeview] Describe local variables in registers
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260746 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Kleckner
parent
2ee5bb8ea1
commit
43c4ddff1c
@ -105,18 +105,32 @@ unsigned CodeViewDebug::maybeRecordFile(const DIFile *F) {
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return Insertion.first->second;
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return Insertion.first->second;
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}
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}
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CodeViewDebug::InlineSite &CodeViewDebug::getInlineSite(const DILocation *Loc) {
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CodeViewDebug::InlineSite &
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const DILocation *InlinedAt = Loc->getInlinedAt();
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CodeViewDebug::getInlineSite(const DILocation *InlinedAt,
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const DISubprogram *Inlinee) {
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auto Insertion = CurFn->InlineSites.insert({InlinedAt, InlineSite()});
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auto Insertion = CurFn->InlineSites.insert({InlinedAt, InlineSite()});
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InlineSite *Site = &Insertion.first->second;
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InlineSite *Site = &Insertion.first->second;
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if (Insertion.second) {
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if (Insertion.second) {
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Site->SiteFuncId = NextFuncId++;
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Site->SiteFuncId = NextFuncId++;
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Site->Inlinee = Loc->getScope()->getSubprogram();
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Site->Inlinee = Inlinee;
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InlinedSubprograms.insert(Loc->getScope()->getSubprogram());
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InlinedSubprograms.insert(Inlinee);
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}
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}
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return *Site;
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return *Site;
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}
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}
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void CodeViewDebug::recordLocalVariable(LocalVariable &&Var,
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const DILocation *InlinedAt) {
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if (InlinedAt) {
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// This variable was inlined. Associate it with the InlineSite.
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const DISubprogram *Inlinee = Var.DIVar->getScope()->getSubprogram();
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InlineSite &Site = getInlineSite(InlinedAt, Inlinee);
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Site.InlinedLocals.emplace_back(Var);
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} else {
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// This variable goes in the main ProcSym.
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CurFn->Locals.emplace_back(Var);
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}
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}
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static void addLocIfNotPresent(SmallVectorImpl<const DILocation *> &Locs,
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static void addLocIfNotPresent(SmallVectorImpl<const DILocation *> &Locs,
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const DILocation *Loc) {
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const DILocation *Loc) {
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auto B = Locs.begin(), E = Locs.end();
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auto B = Locs.begin(), E = Locs.end();
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@ -154,18 +168,19 @@ void CodeViewDebug::maybeRecordLocation(DebugLoc DL,
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CurFn->LastLoc = DL;
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CurFn->LastLoc = DL;
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unsigned FuncId = CurFn->FuncId;
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unsigned FuncId = CurFn->FuncId;
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if (DL->getInlinedAt()) {
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if (const DILocation *SiteLoc = DL->getInlinedAt()) {
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const DILocation *Loc = DL.get();
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const DILocation *Loc = DL.get();
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// If this location was actually inlined from somewhere else, give it the ID
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// If this location was actually inlined from somewhere else, give it the ID
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// of the inline call site.
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// of the inline call site.
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FuncId = getInlineSite(Loc).SiteFuncId;
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FuncId =
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getInlineSite(SiteLoc, Loc->getScope()->getSubprogram()).SiteFuncId;
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// Ensure we have links in the tree of inline call sites.
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// Ensure we have links in the tree of inline call sites.
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const DILocation *SiteLoc;
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bool FirstLoc = true;
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bool FirstLoc = true;
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while ((SiteLoc = Loc->getInlinedAt())) {
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while ((SiteLoc = Loc->getInlinedAt())) {
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InlineSite &Site = getInlineSite(Loc);
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InlineSite &Site =
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getInlineSite(SiteLoc, Loc->getScope()->getSubprogram());
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if (!FirstLoc)
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if (!FirstLoc)
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addLocIfNotPresent(Site.ChildSites, Loc);
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addLocIfNotPresent(Site.ChildSites, Loc);
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FirstLoc = false;
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FirstLoc = false;
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@ -477,45 +492,148 @@ void CodeViewDebug::emitDebugInfoForFunction(const Function *GV,
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OS.EmitCVLinetableDirective(FI.FuncId, Fn, FI.End);
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OS.EmitCVLinetableDirective(FI.FuncId, Fn, FI.End);
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}
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}
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void CodeViewDebug::collectVariableInfoFromMMITable() {
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CodeViewDebug::LocalVarDefRange
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for (const auto &VI : MMI->getVariableDbgInfo()) {
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CodeViewDebug::createDefRangeMem(uint16_t CVRegister, int Offset) {
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LocalVarDefRange DR;
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DR.InMemory = 1;
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DR.DataOffset = Offset;
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assert(DR.DataOffset == Offset && "truncation");
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DR.StructOffset = 0;
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DR.CVRegister = CVRegister;
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return DR;
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}
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CodeViewDebug::LocalVarDefRange
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CodeViewDebug::createDefRangeReg(uint16_t CVRegister) {
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LocalVarDefRange DR;
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DR.InMemory = 0;
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DR.DataOffset = 0;
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DR.StructOffset = 0;
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DR.CVRegister = CVRegister;
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return DR;
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}
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void CodeViewDebug::collectVariableInfoFromMMITable(
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DenseSet<InlinedVariable> &Processed) {
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const TargetSubtargetInfo &TSI = Asm->MF->getSubtarget();
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const TargetFrameLowering *TFI = TSI.getFrameLowering();
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const TargetRegisterInfo *TRI = TSI.getRegisterInfo();
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for (const MachineModuleInfo::VariableDbgInfo &VI :
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MMI->getVariableDbgInfo()) {
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if (!VI.Var)
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if (!VI.Var)
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continue;
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continue;
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assert(VI.Var->isValidLocationForIntrinsic(VI.Loc) &&
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assert(VI.Var->isValidLocationForIntrinsic(VI.Loc) &&
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"Expected inlined-at fields to agree");
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"Expected inlined-at fields to agree");
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Processed.insert(InlinedVariable(VI.Var, VI.Loc->getInlinedAt()));
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LexicalScope *Scope = LScopes.findLexicalScope(VI.Loc);
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LexicalScope *Scope = LScopes.findLexicalScope(VI.Loc);
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// If variable scope is not found then skip this variable.
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// If variable scope is not found then skip this variable.
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if (!Scope)
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if (!Scope)
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continue;
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continue;
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LocalVariable Var;
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Var.DIVar = VI.Var;
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// Get the frame register used and the offset.
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// Get the frame register used and the offset.
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unsigned FrameReg = 0;
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unsigned FrameReg = 0;
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const TargetSubtargetInfo &TSI = Asm->MF->getSubtarget();
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int FrameOffset = TFI->getFrameIndexReference(*Asm->MF, VI.Slot, FrameReg);
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const TargetFrameLowering *TFI = TSI.getFrameLowering();
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uint16_t CVReg = TRI->getCodeViewRegNum(FrameReg);
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const TargetRegisterInfo *TRI = TSI.getRegisterInfo();
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Var.RegisterOffset = TFI->getFrameIndexReference(*Asm->MF, VI.Slot, FrameReg);
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Var.CVRegister = TRI->getCodeViewRegNum(FrameReg);
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// Calculate the label ranges.
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// Calculate the label ranges.
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LocalVarDefRange DefRange = createDefRangeMem(CVReg, FrameOffset);
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for (const InsnRange &Range : Scope->getRanges()) {
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for (const InsnRange &Range : Scope->getRanges()) {
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const MCSymbol *Begin = getLabelBeforeInsn(Range.first);
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const MCSymbol *Begin = getLabelBeforeInsn(Range.first);
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const MCSymbol *End = getLabelAfterInsn(Range.second);
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const MCSymbol *End = getLabelAfterInsn(Range.second);
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Var.Ranges.push_back({Begin, End});
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End = End ? End : Asm->getFunctionEnd();
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DefRange.Ranges.emplace_back(Begin, End);
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}
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}
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if (VI.Loc->getInlinedAt()) {
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LocalVariable Var;
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// This variable was inlined. Associate it with the InlineSite.
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Var.DIVar = VI.Var;
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InlineSite &Site = getInlineSite(VI.Loc);
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Var.DefRanges.emplace_back(std::move(DefRange));
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Site.InlinedLocals.emplace_back(std::move(Var));
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recordLocalVariable(std::move(Var), VI.Loc->getInlinedAt());
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} else {
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}
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// This variable goes in the main ProcSym.
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}
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CurFn->Locals.emplace_back(std::move(Var));
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void CodeViewDebug::collectVariableInfo(const DISubprogram *SP) {
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DenseSet<InlinedVariable> Processed;
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// Grab the variable info that was squirreled away in the MMI side-table.
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collectVariableInfoFromMMITable(Processed);
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const TargetRegisterInfo *TRI = Asm->MF->getSubtarget().getRegisterInfo();
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for (const auto &I : DbgValues) {
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InlinedVariable IV = I.first;
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if (Processed.count(IV))
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continue;
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const DILocalVariable *DIVar = IV.first;
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const DILocation *InlinedAt = IV.second;
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// Instruction ranges, specifying where IV is accessible.
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const auto &Ranges = I.second;
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LexicalScope *Scope = nullptr;
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if (InlinedAt)
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Scope = LScopes.findInlinedScope(DIVar->getScope(), InlinedAt);
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else
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Scope = LScopes.findLexicalScope(DIVar->getScope());
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// If variable scope is not found then skip this variable.
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if (!Scope)
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continue;
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LocalVariable Var;
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Var.DIVar = DIVar;
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// Calculate the definition ranges.
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for (auto I = Ranges.begin(), E = Ranges.end(); I != E; ++I) {
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const InsnRange &Range = *I;
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const MachineInstr *DVInst = Range.first;
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assert(DVInst->isDebugValue() && "Invalid History entry");
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const DIExpression *DIExpr = DVInst->getDebugExpression();
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// Bail if there is a complex DWARF expression for now.
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if (DIExpr && DIExpr->getNumElements() > 0)
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continue;
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// Handle the two cases we can handle: indirect in memory and in register.
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bool IsIndirect = DVInst->getOperand(1).isImm();
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unsigned CVReg = TRI->getCodeViewRegNum(DVInst->getOperand(0).getReg());
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{
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LocalVarDefRange DefRange;
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if (IsIndirect) {
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int64_t Offset = DVInst->getOperand(1).getImm();
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DefRange = createDefRangeMem(CVReg, Offset);
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} else {
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DefRange = createDefRangeReg(CVReg);
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}
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if (Var.DefRanges.empty() ||
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Var.DefRanges.back().isDifferentLocation(DefRange)) {
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Var.DefRanges.emplace_back(std::move(DefRange));
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}
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}
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// Compute the label range.
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const MCSymbol *Begin = getLabelBeforeInsn(Range.first);
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const MCSymbol *End = getLabelAfterInsn(Range.second);
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if (!End) {
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if (std::next(I) != E)
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End = getLabelBeforeInsn(std::next(I)->first);
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else
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End = Asm->getFunctionEnd();
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}
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// If the last range end is our begin, just extend the last range.
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// Otherwise make a new range.
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SmallVectorImpl<std::pair<const MCSymbol *, const MCSymbol *>> &Ranges =
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Var.DefRanges.back().Ranges;
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if (!Ranges.empty() && Ranges.back().second == Begin)
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Ranges.back().second = End;
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else
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Ranges.emplace_back(Begin, End);
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// FIXME: Do more range combining.
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}
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}
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recordLocalVariable(std::move(Var), InlinedAt);
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}
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}
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}
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}
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@ -572,6 +690,8 @@ void CodeViewDebug::emitLocalVariable(const LocalVariable &Var) {
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uint16_t Flags = 0;
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uint16_t Flags = 0;
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if (Var.DIVar->isParameter())
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if (Var.DIVar->isParameter())
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Flags |= LocalSym::IsParameter;
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Flags |= LocalSym::IsParameter;
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if (Var.DefRanges.empty())
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Flags |= LocalSym::IsOptimizedOut;
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OS.AddComment("TypeIndex");
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OS.AddComment("TypeIndex");
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OS.EmitIntValue(TypeIndex::Int32().getIndex(), 4);
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OS.EmitIntValue(TypeIndex::Int32().getIndex(), 4);
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@ -580,28 +700,42 @@ void CodeViewDebug::emitLocalVariable(const LocalVariable &Var) {
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emitNullTerminatedString(OS, Var.DIVar->getName());
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emitNullTerminatedString(OS, Var.DIVar->getName());
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OS.EmitLabel(LocalEnd);
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OS.EmitLabel(LocalEnd);
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// DefRangeRegisterRelSym record, see SymbolRecord.h for more info. Omit the
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// Calculate the on disk prefix of the appropriate def range record. The
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// LocalVariableAddrRange field from the record. The directive will emit that.
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// records and on disk formats are described in SymbolRecords.h. BytePrefix
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DefRangeRegisterRelSym Sym{};
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// should be big enough to hold all forms without memory allocation.
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ulittle16_t SymKind = ulittle16_t(S_DEFRANGE_REGISTER_REL);
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SmallString<20> BytePrefix;
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Sym.BaseRegister = Var.CVRegister;
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for (const LocalVarDefRange &DefRange : Var.DefRanges) {
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Sym.Flags = 0; // Unclear what matters here.
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BytePrefix.clear();
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Sym.BasePointerOffset = Var.RegisterOffset;
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// FIXME: Handle bitpieces.
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SmallString<sizeof(Sym) + sizeof(SymKind) - sizeof(LocalVariableAddrRange)>
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if (DefRange.StructOffset != 0)
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BytePrefix;
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continue;
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BytePrefix += StringRef(reinterpret_cast<const char *>(&SymKind),
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sizeof(SymKind));
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BytePrefix += StringRef(reinterpret_cast<const char *>(&Sym),
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sizeof(Sym) - sizeof(LocalVariableAddrRange));
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OS.EmitCVDefRangeDirective(Var.Ranges, BytePrefix);
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if (DefRange.InMemory) {
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DefRangeRegisterRelSym Sym{};
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ulittle16_t SymKind = ulittle16_t(S_DEFRANGE_REGISTER_REL);
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Sym.BaseRegister = DefRange.CVRegister;
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Sym.Flags = 0; // Unclear what matters here.
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Sym.BasePointerOffset = DefRange.DataOffset;
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BytePrefix +=
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StringRef(reinterpret_cast<const char *>(&SymKind), sizeof(SymKind));
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BytePrefix += StringRef(reinterpret_cast<const char *>(&Sym),
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sizeof(Sym) - sizeof(LocalVariableAddrRange));
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} else {
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assert(DefRange.DataOffset == 0 && "unexpected offset into register");
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DefRangeRegisterSym Sym{};
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ulittle16_t SymKind = ulittle16_t(S_DEFRANGE_REGISTER);
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Sym.Register = DefRange.CVRegister;
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Sym.MayHaveNoName = 0; // Unclear what matters here.
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BytePrefix +=
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StringRef(reinterpret_cast<const char *>(&SymKind), sizeof(SymKind));
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BytePrefix += StringRef(reinterpret_cast<const char *>(&Sym),
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sizeof(Sym) - sizeof(LocalVariableAddrRange));
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}
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OS.EmitCVDefRangeDirective(DefRange.Ranges, BytePrefix);
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}
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}
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}
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void CodeViewDebug::endFunction(const MachineFunction *MF) {
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void CodeViewDebug::endFunction(const MachineFunction *MF) {
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collectVariableInfoFromMMITable();
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DebugHandlerBase::endFunction(MF);
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if (!Asm || !CurFn) // We haven't created any debug info for this function.
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if (!Asm || !CurFn) // We haven't created any debug info for this function.
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return;
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return;
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@ -609,6 +743,10 @@ void CodeViewDebug::endFunction(const MachineFunction *MF) {
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assert(FnDebugInfo.count(GV));
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assert(FnDebugInfo.count(GV));
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assert(CurFn == &FnDebugInfo[GV]);
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assert(CurFn == &FnDebugInfo[GV]);
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collectVariableInfo(getDISubprogram(GV));
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DebugHandlerBase::endFunction(MF);
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// Don't emit anything if we don't have any line tables.
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// Don't emit anything if we don't have any line tables.
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if (!CurFn->HaveLineInfo) {
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if (!CurFn->HaveLineInfo) {
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FnDebugInfo.erase(GV);
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FnDebugInfo.erase(GV);
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@ -35,13 +35,40 @@ class LexicalScope;
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class LLVM_LIBRARY_VISIBILITY CodeViewDebug : public DebugHandlerBase {
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class LLVM_LIBRARY_VISIBILITY CodeViewDebug : public DebugHandlerBase {
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MCStreamer &OS;
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MCStreamer &OS;
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/// Represents the most general definition range.
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struct LocalVarDefRange {
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/// Indicates that variable data is stored in memory relative to the
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/// specified register.
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int InMemory : 1;
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/// Offset of variable data in memory.
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int DataOffset : 31;
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/// Offset of the data into the user level struct. If zero, no splitting
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/// occurred.
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uint16_t StructOffset;
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/// Register containing the data or the register base of the memory
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/// location containing the data.
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uint16_t CVRegister;
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/// Compares all location fields. This includes all fields except the label
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/// ranges.
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bool isDifferentLocation(LocalVarDefRange &O) {
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return InMemory != O.InMemory || DataOffset != O.DataOffset ||
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StructOffset != O.StructOffset || CVRegister != O.CVRegister;
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}
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SmallVector<std::pair<const MCSymbol *, const MCSymbol *>, 1> Ranges;
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};
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||||||
|
static LocalVarDefRange createDefRangeMem(uint16_t CVRegister, int Offset);
|
||||||
|
static LocalVarDefRange createDefRangeReg(uint16_t CVRegister);
|
||||||
|
|
||||||
/// Similar to DbgVariable in DwarfDebug, but not dwarf-specific.
|
/// Similar to DbgVariable in DwarfDebug, but not dwarf-specific.
|
||||||
struct LocalVariable {
|
struct LocalVariable {
|
||||||
const DILocalVariable *DIVar = nullptr;
|
const DILocalVariable *DIVar = nullptr;
|
||||||
SmallVector<std::pair<const MCSymbol *, const MCSymbol *>, 1> Ranges;
|
SmallVector<LocalVarDefRange, 1> DefRanges;
|
||||||
unsigned CVRegister = 0;
|
|
||||||
int RegisterOffset = 0;
|
|
||||||
// FIXME: Add support for DIExpressions.
|
|
||||||
};
|
};
|
||||||
|
|
||||||
struct InlineSite {
|
struct InlineSite {
|
||||||
@ -74,7 +101,8 @@ class LLVM_LIBRARY_VISIBILITY CodeViewDebug : public DebugHandlerBase {
|
|||||||
|
|
||||||
unsigned NextFuncId = 0;
|
unsigned NextFuncId = 0;
|
||||||
|
|
||||||
InlineSite &getInlineSite(const DILocation *Loc);
|
InlineSite &getInlineSite(const DILocation *InlinedAt,
|
||||||
|
const DISubprogram *Inlinee);
|
||||||
|
|
||||||
static void collectInlineSiteChildren(SmallVectorImpl<unsigned> &Children,
|
static void collectInlineSiteChildren(SmallVectorImpl<unsigned> &Children,
|
||||||
const FunctionInfo &FI,
|
const FunctionInfo &FI,
|
||||||
@ -123,7 +151,15 @@ class LLVM_LIBRARY_VISIBILITY CodeViewDebug : public DebugHandlerBase {
|
|||||||
void emitInlinedCallSite(const FunctionInfo &FI, const DILocation *InlinedAt,
|
void emitInlinedCallSite(const FunctionInfo &FI, const DILocation *InlinedAt,
|
||||||
const InlineSite &Site);
|
const InlineSite &Site);
|
||||||
|
|
||||||
void collectVariableInfoFromMMITable();
|
typedef DbgValueHistoryMap::InlinedVariable InlinedVariable;
|
||||||
|
|
||||||
|
void collectVariableInfo(const DISubprogram *SP);
|
||||||
|
|
||||||
|
void collectVariableInfoFromMMITable(DenseSet<InlinedVariable> &Processed);
|
||||||
|
|
||||||
|
/// Records information about a local variable in the appropriate scope. In
|
||||||
|
/// particular, locals from inlined code live inside the inlining site.
|
||||||
|
void recordLocalVariable(LocalVariable &&Var, const DILocation *Loc);
|
||||||
|
|
||||||
void emitLocalVariable(const LocalVariable &Var);
|
void emitLocalVariable(const LocalVariable &Var);
|
||||||
|
|
||||||
|
|||||||
291
test/DebugInfo/COFF/register-variables.ll
Normal file
291
test/DebugInfo/COFF/register-variables.ll
Normal file
@ -0,0 +1,291 @@
|
|||||||
|
; RUN: llc < %s | FileCheck %s --check-prefix=ASM
|
||||||
|
; RUN: llc < %s -filetype=obj | llvm-readobj -codeview - | FileCheck %s --check-prefix=OBJ
|
||||||
|
|
||||||
|
; Generated from:
|
||||||
|
; volatile int x;
|
||||||
|
; int getint(void);
|
||||||
|
; void putint(int);
|
||||||
|
; static inline int inlineinc(int a) {
|
||||||
|
; int b = a + 1;
|
||||||
|
; ++x;
|
||||||
|
; return b;
|
||||||
|
; }
|
||||||
|
; void f(int p) {
|
||||||
|
; if (p) {
|
||||||
|
; int a = getint();
|
||||||
|
; int b = inlineinc(a);
|
||||||
|
; putint(b);
|
||||||
|
; } else {
|
||||||
|
; int c = getint();
|
||||||
|
; putint(c);
|
||||||
|
; }
|
||||||
|
; }
|
||||||
|
|
||||||
|
; ASM: f: # @f
|
||||||
|
; ASM: .Lfunc_begin0:
|
||||||
|
; ASM: # BB#0: # %entry
|
||||||
|
; ASM: pushq %rsi
|
||||||
|
; ASM: subq $32, %rsp
|
||||||
|
; ASM: #DEBUG_VALUE: f:p <- %ECX
|
||||||
|
; ASM: movl %ecx, %esi
|
||||||
|
; ASM: [[p_ecx_esi:\.Ltmp.*]]:
|
||||||
|
; ASM: #DEBUG_VALUE: f:p <- %ESI
|
||||||
|
; ASM: callq getint
|
||||||
|
; ASM: [[after_getint:\.Ltmp.*]]:
|
||||||
|
; ASM: #DEBUG_VALUE: a <- %EAX
|
||||||
|
; ASM: #DEBUG_VALUE: inlineinc:a <- %EAX
|
||||||
|
; ASM: #DEBUG_VALUE: c <- %EAX
|
||||||
|
; ASM: testl %esi, %esi
|
||||||
|
; ASM: je .LBB0_2
|
||||||
|
; ASM: # BB#1: # %if.then
|
||||||
|
; ASM: #DEBUG_VALUE: c <- %EAX
|
||||||
|
; ASM: #DEBUG_VALUE: inlineinc:a <- %EAX
|
||||||
|
; ASM: #DEBUG_VALUE: a <- %EAX
|
||||||
|
; ASM: #DEBUG_VALUE: f:p <- %ESI
|
||||||
|
; ASM: incl %eax
|
||||||
|
; ASM: [[after_inc_eax:\.Ltmp.*]]:
|
||||||
|
; ASM: #DEBUG_VALUE: inlineinc:b <- %EAX
|
||||||
|
; ASM: #DEBUG_VALUE: b <- %EAX
|
||||||
|
; ASM: incl x(%rip)
|
||||||
|
; ASM: [[after_if:\.Ltmp.*]]:
|
||||||
|
; ASM: .LBB0_2: # %if.else
|
||||||
|
; ASM: #DEBUG_VALUE: f:p <- %ESI
|
||||||
|
; ASM: movl %eax, %ecx
|
||||||
|
; ASM: addq $32, %rsp
|
||||||
|
; ASM: popq %rsi
|
||||||
|
; ASM: [[func_end:\.Ltmp.*]]:
|
||||||
|
; ASM: rex64 jmp putint # TAILCALL
|
||||||
|
|
||||||
|
; ASM: .short 4414 # Record kind: S_LOCAL
|
||||||
|
; ASM: .asciz "p"
|
||||||
|
; ASM: .cv_def_range .Lfunc_begin0 [[p_ecx_esi]], "A\021\022\000\000\000"
|
||||||
|
; ASM: .cv_def_range [[p_ecx_esi]] [[func_end]], "A\021\027\000\000\000"
|
||||||
|
; ASM: .short 4414 # Record kind: S_LOCAL
|
||||||
|
; ASM: .asciz "a"
|
||||||
|
; ASM: .cv_def_range [[after_getint]] [[after_inc_eax]], "A\021\021\000\000\000"
|
||||||
|
; ASM: .short 4414 # Record kind: S_LOCAL
|
||||||
|
; ASM: .asciz "c"
|
||||||
|
; ASM: .cv_def_range [[after_getint]] [[after_inc_eax]], "A\021\021\000\000\000"
|
||||||
|
; ASM: .short 4414 # Record kind: S_LOCAL
|
||||||
|
; ASM: .asciz "b"
|
||||||
|
; ASM: .cv_def_range [[after_inc_eax]] [[after_if]], "A\021\021\000\000\000"
|
||||||
|
|
||||||
|
; ASM: .short 4429 # Record kind: S_INLINESITE
|
||||||
|
; ASM: .short 4414 # Record kind: S_LOCAL
|
||||||
|
; ASM: .asciz "a"
|
||||||
|
; ASM: .cv_def_range [[after_getint]] [[after_inc_eax]], "A\021\021\000\000\000"
|
||||||
|
; ASM: .short 4414 # Record kind: S_LOCAL
|
||||||
|
; ASM: .asciz "b"
|
||||||
|
; ASM: .cv_def_range [[after_inc_eax]] [[after_if]], "A\021\021\000\000\000"
|
||||||
|
; ASM: .short 4430 # Record kind: S_INLINESITE_END
|
||||||
|
|
||||||
|
; OBJ: Subsection [
|
||||||
|
; OBJ: SubSectionType: Symbols (0xF1)
|
||||||
|
; OBJ: ProcStart {
|
||||||
|
; OBJ: DisplayName: f
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: Local {
|
||||||
|
; OBJ: Type: int (0x74)
|
||||||
|
; OBJ: Flags [ (0x1)
|
||||||
|
; OBJ: IsParameter (0x1)
|
||||||
|
; OBJ: ]
|
||||||
|
; OBJ: VarName: p
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: DefRangeRegister {
|
||||||
|
; OBJ: Register: 18
|
||||||
|
; OBJ: LocalVariableAddrRange {
|
||||||
|
; OBJ: OffsetStart: .text+0x0
|
||||||
|
; OBJ: ISectStart: 0x0
|
||||||
|
; OBJ: Range: 0x7
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: DefRangeRegister {
|
||||||
|
; OBJ: Register: 23
|
||||||
|
; OBJ: LocalVariableAddrRange {
|
||||||
|
; OBJ: OffsetStart: .text+0x7
|
||||||
|
; OBJ: ISectStart: 0x0
|
||||||
|
; OBJ: Range: 0x18
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: Local {
|
||||||
|
; OBJ: Type: int (0x74)
|
||||||
|
; OBJ: Flags [ (0x0)
|
||||||
|
; OBJ: ]
|
||||||
|
; OBJ: VarName: a
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: DefRangeRegister {
|
||||||
|
; OBJ: Register: 17
|
||||||
|
; OBJ: LocalVariableAddrRange {
|
||||||
|
; OBJ: OffsetStart: .text+0xC
|
||||||
|
; OBJ: ISectStart: 0x0
|
||||||
|
; OBJ: Range: 0x6
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: Local {
|
||||||
|
; OBJ: Type: int (0x74)
|
||||||
|
; OBJ: Flags [ (0x0)
|
||||||
|
; OBJ: ]
|
||||||
|
; OBJ: VarName: c
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: DefRangeRegister {
|
||||||
|
; OBJ: Register: 17
|
||||||
|
; OBJ: LocalVariableAddrRange {
|
||||||
|
; OBJ: OffsetStart: .text+0xC
|
||||||
|
; OBJ: ISectStart: 0x0
|
||||||
|
; OBJ: Range: 0x6
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: Local {
|
||||||
|
; OBJ: Type: int (0x74)
|
||||||
|
; OBJ: Flags [ (0x0)
|
||||||
|
; OBJ: ]
|
||||||
|
; OBJ: VarName: b
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: DefRangeRegister {
|
||||||
|
; OBJ: Register: 17
|
||||||
|
; OBJ: LocalVariableAddrRange {
|
||||||
|
; OBJ: OffsetStart: .text+0x12
|
||||||
|
; OBJ: ISectStart: 0x0
|
||||||
|
; OBJ: Range: 0x6
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: InlineSite {
|
||||||
|
; OBJ: PtrParent: 0x0
|
||||||
|
; OBJ: PtrEnd: 0x0
|
||||||
|
; OBJ: Inlinee: inlineinc (0x1003)
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: Local {
|
||||||
|
; OBJ: Type: int (0x74)
|
||||||
|
; OBJ: Flags [ (0x1)
|
||||||
|
; OBJ: IsParameter (0x1)
|
||||||
|
; OBJ: ]
|
||||||
|
; OBJ: VarName: a
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: DefRangeRegister {
|
||||||
|
; OBJ: Register: 17
|
||||||
|
; OBJ: LocalVariableAddrRange {
|
||||||
|
; OBJ: OffsetStart: .text+0xC
|
||||||
|
; OBJ: ISectStart: 0x0
|
||||||
|
; OBJ: Range: 0x6
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: Local {
|
||||||
|
; OBJ: Type: int (0x74)
|
||||||
|
; OBJ: Flags [ (0x0)
|
||||||
|
; OBJ: ]
|
||||||
|
; OBJ: VarName: b
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: DefRangeRegister {
|
||||||
|
; OBJ: Register: 17
|
||||||
|
; OBJ: LocalVariableAddrRange {
|
||||||
|
; OBJ: OffsetStart: .text+0x12
|
||||||
|
; OBJ: ISectStart: 0x0
|
||||||
|
; OBJ: Range: 0x6
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: InlineSiteEnd {
|
||||||
|
; OBJ: }
|
||||||
|
; OBJ: ProcEnd
|
||||||
|
; OBJ: ]
|
||||||
|
|
||||||
|
; ModuleID = 't.cpp'
|
||||||
|
target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
|
||||||
|
target triple = "x86_64-pc-windows-msvc18.0.0"
|
||||||
|
|
||||||
|
@x = internal global i32 0, align 4
|
||||||
|
|
||||||
|
; Function Attrs: nounwind uwtable
|
||||||
|
define void @f(i32 %p) #0 !dbg !4 {
|
||||||
|
entry:
|
||||||
|
tail call void @llvm.dbg.value(metadata i32 %p, i64 0, metadata !9, metadata !29), !dbg !30
|
||||||
|
%tobool = icmp eq i32 %p, 0, !dbg !31
|
||||||
|
%call2 = tail call i32 @getint() #3, !dbg !32
|
||||||
|
br i1 %tobool, label %if.else, label %if.then, !dbg !33
|
||||||
|
|
||||||
|
if.then: ; preds = %entry
|
||||||
|
tail call void @llvm.dbg.value(metadata i32 %call2, i64 0, metadata !10, metadata !29), !dbg !34
|
||||||
|
tail call void @llvm.dbg.value(metadata i32 %call2, i64 0, metadata !20, metadata !29), !dbg !35
|
||||||
|
%add.i = add nsw i32 %call2, 1, !dbg !37
|
||||||
|
tail call void @llvm.dbg.value(metadata i32 %add.i, i64 0, metadata !21, metadata !29), !dbg !38
|
||||||
|
%0 = load volatile i32, i32* @x, align 4, !dbg !39, !tbaa !40
|
||||||
|
%inc.i = add nsw i32 %0, 1, !dbg !39
|
||||||
|
store volatile i32 %inc.i, i32* @x, align 4, !dbg !39, !tbaa !40
|
||||||
|
tail call void @llvm.dbg.value(metadata i32 %add.i, i64 0, metadata !13, metadata !29), !dbg !44
|
||||||
|
tail call void @putint(i32 %add.i) #3, !dbg !45
|
||||||
|
br label %if.end, !dbg !46
|
||||||
|
|
||||||
|
if.else: ; preds = %entry
|
||||||
|
tail call void @llvm.dbg.value(metadata i32 %call2, i64 0, metadata !14, metadata !29), !dbg !47
|
||||||
|
tail call void @putint(i32 %call2) #3, !dbg !48
|
||||||
|
br label %if.end
|
||||||
|
|
||||||
|
if.end: ; preds = %if.else, %if.then
|
||||||
|
ret void, !dbg !49
|
||||||
|
}
|
||||||
|
|
||||||
|
declare i32 @getint() #1
|
||||||
|
|
||||||
|
declare void @putint(i32) #1
|
||||||
|
|
||||||
|
; Function Attrs: nounwind readnone
|
||||||
|
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2
|
||||||
|
|
||||||
|
attributes #0 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
|
||||||
|
attributes #1 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
|
||||||
|
attributes #2 = { nounwind readnone }
|
||||||
|
attributes #3 = { nounwind }
|
||||||
|
|
||||||
|
!llvm.dbg.cu = !{!0}
|
||||||
|
!llvm.module.flags = !{!25, !26, !27}
|
||||||
|
!llvm.ident = !{!28}
|
||||||
|
|
||||||
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0 (trunk 260617) (llvm/trunk 260619)", isOptimized: true, runtimeVersion: 0, emissionKind: 1, enums: !2, subprograms: !3, globals: !22)
|
||||||
|
!1 = !DIFile(filename: "t.cpp", directory: "D:\5Csrc\5Cllvm\5Cbuild")
|
||||||
|
!2 = !{}
|
||||||
|
!3 = !{!4, !16}
|
||||||
|
!4 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 9, type: !5, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: true, variables: !8)
|
||||||
|
!5 = !DISubroutineType(types: !6)
|
||||||
|
!6 = !{null, !7}
|
||||||
|
!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
||||||
|
!8 = !{!9, !10, !13, !14}
|
||||||
|
!9 = !DILocalVariable(name: "p", arg: 1, scope: !4, file: !1, line: 9, type: !7)
|
||||||
|
!10 = !DILocalVariable(name: "a", scope: !11, file: !1, line: 11, type: !7)
|
||||||
|
!11 = distinct !DILexicalBlock(scope: !12, file: !1, line: 10, column: 10)
|
||||||
|
!12 = distinct !DILexicalBlock(scope: !4, file: !1, line: 10, column: 7)
|
||||||
|
!13 = !DILocalVariable(name: "b", scope: !11, file: !1, line: 12, type: !7)
|
||||||
|
!14 = !DILocalVariable(name: "c", scope: !15, file: !1, line: 15, type: !7)
|
||||||
|
!15 = distinct !DILexicalBlock(scope: !12, file: !1, line: 14, column: 10)
|
||||||
|
!16 = distinct !DISubprogram(name: "inlineinc", scope: !1, file: !1, line: 4, type: !17, isLocal: true, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: true, variables: !19)
|
||||||
|
!17 = !DISubroutineType(types: !18)
|
||||||
|
!18 = !{!7, !7}
|
||||||
|
!19 = !{!20, !21}
|
||||||
|
!20 = !DILocalVariable(name: "a", arg: 1, scope: !16, file: !1, line: 4, type: !7)
|
||||||
|
!21 = !DILocalVariable(name: "b", scope: !16, file: !1, line: 5, type: !7)
|
||||||
|
!22 = !{!23}
|
||||||
|
!23 = !DIGlobalVariable(name: "x", scope: !0, file: !1, line: 1, type: !24, isLocal: false, isDefinition: true, variable: i32* @x)
|
||||||
|
!24 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !7)
|
||||||
|
!25 = !{i32 2, !"CodeView", i32 1}
|
||||||
|
!26 = !{i32 2, !"Debug Info Version", i32 3}
|
||||||
|
!27 = !{i32 1, !"PIC Level", i32 2}
|
||||||
|
!28 = !{!"clang version 3.9.0 (trunk 260617) (llvm/trunk 260619)"}
|
||||||
|
!29 = !DIExpression()
|
||||||
|
!30 = !DILocation(line: 9, column: 12, scope: !4)
|
||||||
|
!31 = !DILocation(line: 10, column: 7, scope: !12)
|
||||||
|
!32 = !DILocation(line: 15, column: 13, scope: !15)
|
||||||
|
!33 = !DILocation(line: 10, column: 7, scope: !4)
|
||||||
|
!34 = !DILocation(line: 11, column: 9, scope: !11)
|
||||||
|
!35 = !DILocation(line: 4, column: 33, scope: !16, inlinedAt: !36)
|
||||||
|
!36 = distinct !DILocation(line: 12, column: 13, scope: !11)
|
||||||
|
!37 = !DILocation(line: 5, column: 13, scope: !16, inlinedAt: !36)
|
||||||
|
!38 = !DILocation(line: 5, column: 7, scope: !16, inlinedAt: !36)
|
||||||
|
!39 = !DILocation(line: 6, column: 3, scope: !16, inlinedAt: !36)
|
||||||
|
!40 = !{!41, !41, i64 0}
|
||||||
|
!41 = !{!"int", !42, i64 0}
|
||||||
|
!42 = !{!"omnipotent char", !43, i64 0}
|
||||||
|
!43 = !{!"Simple C/C++ TBAA"}
|
||||||
|
!44 = !DILocation(line: 12, column: 9, scope: !11)
|
||||||
|
!45 = !DILocation(line: 13, column: 5, scope: !11)
|
||||||
|
!46 = !DILocation(line: 14, column: 3, scope: !11)
|
||||||
|
!47 = !DILocation(line: 15, column: 9, scope: !15)
|
||||||
|
!48 = !DILocation(line: 16, column: 5, scope: !15)
|
||||||
|
!49 = !DILocation(line: 18, column: 1, scope: !4)
|
||||||
Loading…
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Reference in New Issue
Block a user