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Revert "Add -strip-nonlinetable-debuginfo capability"
This reverts commit r283473. Reverted until review is completed. llvm-svn: 283478
This commit is contained in:
Michael Ilseman
parent
0c63adb6bd
commit
65a382e8fc
@ -44,18 +44,6 @@ DISubprogram *getDISubprogram(const MDNode *Scope);
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bool StripDebugInfo(Module &M);
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bool stripDebugInfo(Function &F);
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/// Downgrade the debug info in a module to contain only line table information.
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///
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/// In order to convert debug info to what -gline-tables-only would have
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/// created, this does the following:
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/// 1) Delete all debug intrinsics.
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/// 2) Delete all non-CU named metadata debug info nodes.
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/// 3) Create new DebugLocs for each instruction.
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/// 4) Create a new CU debug info, and similarly for every metadata node
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/// that's reachable from the CU debug info.
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/// All debug type metadata nodes are unreachable and garbage collected.
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bool stripNonLineTableDebugInfo(Module &M);
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/// \brief Return Debug Info Metadata Version by checking module flags.
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unsigned getDebugMetadataVersionFromModule(const Module &M);
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@ -328,7 +328,6 @@ void initializeStripDeadDebugInfoPass(PassRegistry&);
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void initializeStripDeadPrototypesLegacyPassPass(PassRegistry&);
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void initializeStripDebugDeclarePass(PassRegistry&);
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void initializeStripNonDebugSymbolsPass(PassRegistry&);
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void initializeStripNonLineTableDebugInfoPass(PassRegistry&);
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void initializeStripSymbolsPass(PassRegistry&);
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void initializeStructurizeCFGPass(PassRegistry&);
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void initializeTailCallElimPass(PassRegistry&);
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@ -43,10 +43,6 @@ ModulePass *createStripSymbolsPass(bool OnlyDebugInfo = false);
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//
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ModulePass *createStripNonDebugSymbolsPass();
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/// This function returns a new pass that downgrades the debug info in the
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/// module to line tables only.
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ModulePass *createStripNonLineTableDebugInfoPass();
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//===----------------------------------------------------------------------===//
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//
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// These pass removes llvm.dbg.declare intrinsics.
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@ -287,315 +287,6 @@ bool llvm::StripDebugInfo(Module &M) {
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return Changed;
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}
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namespace {
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/// Helper class to downgrade -g metadata to -gline-tables-only metadata.
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class DebugTypeInfoRemoval {
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DenseMap<Metadata *, Metadata *> Replacements;
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public:
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/// The (void)() type.
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MDNode *EmptySubroutineType;
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private:
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/// Remember what linkage name we originally had before stripping. If we end
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/// up making two subprograms identical who originally had different linkage
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/// names, then we need to make one of them distinct, to avoid them getting
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/// uniqued. Maps the new node to the old linkage name.
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DenseMap<DISubprogram *, StringRef> NewToLinkageName;
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// TODO: Remember the distinct subprogram we created for a given linkage name,
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// so that we can continue to unique whenever possible. Map <newly created
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// node, old linkage name> to the first (possibly distinct) mdsubprogram
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// created for that combination. This is not strictly needed for correctness,
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// but can cut down on the number of MDNodes and let us diff cleanly with the
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// output of -gline-tables-only.
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public:
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DebugTypeInfoRemoval(LLVMContext &C)
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: EmptySubroutineType(DISubroutineType::get(C, DINode::FlagZero, 0,
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MDNode::get(C, {}))) {}
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Metadata *map(Metadata *M) {
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if (!M)
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return nullptr;
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if (Replacements.count(M))
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return Replacements.lookup(M);
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return M;
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}
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MDNode *mapNode(Metadata *N) { return dyn_cast_or_null<MDNode>(map(N)); }
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/// Recursively remap N and all its referenced children. Does a DF post-order
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/// traversal, so as to remap bottoms up.
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void traverseAndRemap(MDNode *N) { traverse(N); }
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private:
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// Create a new DISubprogram, to replace the one given.
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DISubprogram *getReplacementSubprogram(DISubprogram *MDS) {
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auto *FileAndScope = cast_or_null<DIFile>(map(MDS->getFile()));
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StringRef LinkageName = MDS->getName().empty() ? MDS->getLinkageName() : "";
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DISubprogram *Declaration = nullptr;
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auto *Type = cast_or_null<DISubroutineType>(map(MDS->getType()));
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DITypeRef ContainingType(map(MDS->getContainingType()));
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auto *Unit = cast_or_null<DICompileUnit>(map(MDS->getUnit()));
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auto Variables = nullptr;
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auto TemplateParams = nullptr;
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// Make a distinct DISubprogram, for situations that warrent it.
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auto distinctMDSubprogram = [&]() {
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return DISubprogram::getDistinct(
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MDS->getContext(), FileAndScope, MDS->getName(), LinkageName,
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FileAndScope, MDS->getLine(), Type, MDS->isLocalToUnit(),
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MDS->isDefinition(), MDS->getScopeLine(), ContainingType,
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MDS->getVirtuality(), MDS->getVirtualIndex(),
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MDS->getThisAdjustment(), MDS->getFlags(), MDS->isOptimized(), Unit,
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TemplateParams, Declaration, Variables);
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};
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if (MDS->isDistinct())
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return distinctMDSubprogram();
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auto *NewMDS = DISubprogram::get(
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MDS->getContext(), FileAndScope, MDS->getName(), LinkageName,
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FileAndScope, MDS->getLine(), Type, MDS->isLocalToUnit(),
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MDS->isDefinition(), MDS->getScopeLine(), ContainingType,
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MDS->getVirtuality(), MDS->getVirtualIndex(), MDS->getThisAdjustment(),
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MDS->getFlags(), MDS->isOptimized(), Unit, TemplateParams, Declaration,
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Variables);
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StringRef OldLinkageName = MDS->getLinkageName();
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// See if we need to make a distinct one.
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auto OrigLinkage = NewToLinkageName.find(NewMDS);
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if (OrigLinkage != NewToLinkageName.end()) {
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if (OrigLinkage->second == OldLinkageName)
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// We're good.
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return NewMDS;
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// Otherwise, need to make a distinct one.
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// TODO: Query the map to see if we already have one.
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return distinctMDSubprogram();
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}
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NewToLinkageName.insert({NewMDS, MDS->getLinkageName()});
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return NewMDS;
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}
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/// Create a new compile unit, to replace the one given
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DICompileUnit *getReplacementCU(DICompileUnit *CU) {
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// Drop skeleton CUs.
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if (CU->getDWOId())
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return nullptr;
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auto *File = cast_or_null<DIFile>(map(CU->getFile()));
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MDTuple *EnumTypes = nullptr;
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MDTuple *RetainedTypes = nullptr;
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MDTuple *GlobalVariables = nullptr;
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MDTuple *ImportedEntities = nullptr;
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return DICompileUnit::getDistinct(
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CU->getContext(), CU->getSourceLanguage(), File, CU->getProducer(),
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CU->isOptimized(), CU->getFlags(), CU->getRuntimeVersion(),
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CU->getSplitDebugFilename(), DICompileUnit::LineTablesOnly, EnumTypes,
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RetainedTypes, GlobalVariables, ImportedEntities, CU->getMacros(),
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CU->getDWOId(), CU->getSplitDebugInlining());
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}
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DILocation *getReplacementMDLocation(DILocation *MLD) {
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auto *Scope = map(MLD->getScope());
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auto *InlinedAt = map(MLD->getInlinedAt());
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if (MLD->isDistinct())
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return DILocation::getDistinct(MLD->getContext(), MLD->getLine(),
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MLD->getColumn(), Scope, InlinedAt);
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return DILocation::get(MLD->getContext(), MLD->getLine(), MLD->getColumn(),
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Scope, InlinedAt);
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}
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/// Create a new generic MDNode, to replace the one given
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MDNode *getReplacementMDNode(MDNode *N) {
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SmallVector<Metadata *, 8> Ops;
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Ops.reserve(N->getNumOperands());
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for (auto &I : N->operands())
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if (I)
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Ops.push_back(map(I));
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auto *Ret = MDNode::get(N->getContext(), Ops);
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return Ret;
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}
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/// Attempt to re-map N to a newly created node.
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void remap(MDNode *N) {
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if (Replacements.count(N))
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return;
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auto doRemap = [&](MDNode *N) -> MDNode * {
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if (!N)
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return nullptr;
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if (auto *MDSub = dyn_cast<DISubprogram>(N)) {
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remap(MDSub->getUnit());
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return getReplacementSubprogram(MDSub);
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}
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if (isa<DISubroutineType>(N))
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return EmptySubroutineType;
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if (auto *CU = dyn_cast<DICompileUnit>(N))
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return getReplacementCU(CU);
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if (isa<DIFile>(N))
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return N;
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if (auto *MDLB = dyn_cast<DILexicalBlockBase>(N))
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// Remap to our referenced scope (recursively).
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return mapNode(MDLB->getScope());
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if (auto *MLD = dyn_cast<DILocation>(N))
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return getReplacementMDLocation(MLD);
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// Otherwise, if we see these, just drop them now. Not strictly necessary,
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// but this speeds things up a little.
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if (isa<DINode>(N))
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return nullptr;
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return getReplacementMDNode(N);
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};
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Replacements[N] = doRemap(N);
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}
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/// Do the remapping traversal.
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void traverse(MDNode *);
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};
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} // Anonymous namespace.
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void DebugTypeInfoRemoval::traverse(MDNode *N) {
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if (!N || Replacements.count(N))
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return;
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// To avoid cycles, as well as for efficiency sake, we will sometimes prune
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// parts of the graph.
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auto prune = [](MDNode *Parent, MDNode *Child) {
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if (auto *MDS = dyn_cast<DISubprogram>(Parent))
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return Child == MDS->getVariables().get();
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return false;
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};
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SmallVector<MDNode *, 16> ToVisit;
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DenseSet<MDNode *> Opened;
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// Visit each node starting at N in post order, and map them.
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ToVisit.push_back(N);
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while (!ToVisit.empty()) {
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auto *N = ToVisit.back();
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auto Result = Opened.insert(N);
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if (!Result.second) {
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// Close it.
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remap(N);
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ToVisit.pop_back();
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continue;
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}
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for (auto &I : N->operands())
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if (auto *MDN = dyn_cast_or_null<MDNode>(I))
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if (!Opened.count(MDN) && !Replacements.count(MDN) && !prune(N, MDN) &&
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!isa<DICompileUnit>(MDN))
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ToVisit.push_back(MDN);
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}
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}
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bool llvm::stripNonLineTableDebugInfo(Module &M) {
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bool Changed = false;
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// First off, delete the debug intrinsics.
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if (Function *Declare = M.getFunction("llvm.dbg.declare")) {
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while (!Declare->use_empty()) {
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auto *DDI = cast<DbgDeclareInst>(Declare->user_back());
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DDI->eraseFromParent();
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}
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Declare->eraseFromParent();
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Changed = true;
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}
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if (Function *DbgVal = M.getFunction("llvm.dbg.value")) {
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while (!DbgVal->use_empty()) {
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auto *DVI = cast<DbgValueInst>(DbgVal->user_back());
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DVI->eraseFromParent();
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}
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DbgVal->eraseFromParent();
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Changed = true;
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}
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// Delete non-CU debug info named metadata nodes.
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for (auto NMI = M.named_metadata_begin(), NME = M.named_metadata_end();
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NMI != NME;) {
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NamedMDNode *NMD = &*NMI;
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++NMI;
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// Specifically keep dbg.cu around.
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if (NMD->getName() == "llvm.dbg.cu")
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continue;
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}
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// Drop all dbg attachments from global variables.
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for (auto &GV : M.globals())
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GV.getContext().pImpl->GlobalObjectMetadata[&GV].erase(LLVMContext::MD_dbg);
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DebugTypeInfoRemoval Mapper(M.getContext());
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// Rewrite the DebugLocs to be equivalent to what
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// -gline-tables-only would have created.
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for (auto &F : M) {
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auto *SP = F.getSubprogram();
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if (SP) {
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Mapper.traverseAndRemap(SP);
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auto *NewSP = cast<DISubprogram>(Mapper.mapNode(SP));
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Changed |= SP != NewSP;
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F.setSubprogram(NewSP);
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}
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for (auto &BB : F) {
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for (auto &I : BB) {
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if (I.getDebugLoc() == DebugLoc())
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continue;
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// Make a replacement.
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auto &DL = I.getDebugLoc();
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auto *Scope = DL.getScope();
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auto *InlinedAt = DL.getInlinedAt();
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// Remap scope.
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if (Scope) {
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Mapper.traverseAndRemap(Scope);
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auto *NewScope = Mapper.mapNode(Scope);
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Changed |= Scope != NewScope;
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Scope = NewScope;
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}
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// Remap inlinedAt.
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if (InlinedAt) {
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Mapper.traverseAndRemap(InlinedAt);
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auto *NewIA = Mapper.mapNode(InlinedAt);
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Changed |= InlinedAt != NewIA;
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InlinedAt = cast_or_null<DILocation>(NewIA);
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}
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I.setDebugLoc(
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DebugLoc::get(DL.getLine(), DL.getCol(), Scope, InlinedAt));
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}
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}
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}
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// Create a new llvm.dbg.cu, which is equivalent to the one
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// -gline-tables-only would have created.
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for (auto &NMD : M.getNamedMDList()) {
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SmallVector<MDNode *, 8> Ops;
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for (MDNode *Op : NMD.operands()) {
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Mapper.traverseAndRemap(Op);
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auto *NewOp = Mapper.mapNode(Op);
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Changed |= NewOp != Op;
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Ops.push_back(NewOp);
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}
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if (Changed) {
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NMD.dropAllReferences();
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for (auto *Op : Ops)
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if (Op)
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NMD.addOperand(Op);
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}
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}
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return Changed;
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}
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unsigned llvm::getDebugMetadataVersionFromModule(const Module &M) {
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if (auto *Val = mdconst::dyn_extract_or_null<ConstantInt>(
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M.getModuleFlag("Debug Info Version")))
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@ -41,7 +41,6 @@ add_llvm_library(LLVMTransformUtils
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SimplifyInstructions.cpp
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SimplifyLibCalls.cpp
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SplitModule.cpp
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StripNonLineTableDebugInfo.cpp
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SymbolRewriter.cpp
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UnifyFunctionExitNodes.cpp
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Utils.cpp
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@ -1,42 +0,0 @@
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//===- StripNonLineTableDebugInfo.cpp -- Strip parts of Debug Info --------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Transforms/IPO.h"
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#include "llvm/IR/DebugInfo.h"
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#include "llvm/Pass.h"
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using namespace llvm;
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namespace {
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/// This pass strips all debug info that is not related line tables.
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/// The result will be the same as if the program where compiled with
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/// -gline-tables-only.
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struct StripNonLineTableDebugInfo : public ModulePass {
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static char ID; // Pass identification, replacement for typeid
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StripNonLineTableDebugInfo() : ModulePass(ID) {
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initializeStripNonLineTableDebugInfoPass(*PassRegistry::getPassRegistry());
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}
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void getAnalysisUsage(AnalysisUsage &AU) const override {
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AU.setPreservesAll();
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}
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bool runOnModule(Module &M) override {
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return llvm::stripNonLineTableDebugInfo(M);
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}
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};
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}
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char StripNonLineTableDebugInfo::ID = 0;
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INITIALIZE_PASS(StripNonLineTableDebugInfo, "strip-nonlinetable-debuginfo",
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"Strip all debug info except linetables", false, false)
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ModulePass *llvm::createStripNonLineTableDebugInfoPass() {
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return new StripNonLineTableDebugInfo();
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}
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@ -30,7 +30,6 @@ void llvm::initializeTransformUtils(PassRegistry &Registry) {
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initializeLowerSwitchPass(Registry);
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initializeNameAnonGlobalLegacyPassPass(Registry);
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initializePromoteLegacyPassPass(Registry);
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initializeStripNonLineTableDebugInfoPass(Registry);
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initializeUnifyFunctionExitNodesPass(Registry);
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initializeInstSimplifierPass(Registry);
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initializeMetaRenamerPass(Registry);
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@ -1,22 +1,10 @@
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; REQUIRES: loadable_module
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; RUN: bugpoint -load %llvmshlibdir/BugpointPasses%shlibext %s -output-prefix %t -bugpoint-crashcalls -silence-passes -disable-namedmd-remove -disable-strip-debuginfo -disable-strip-debug-types > /dev/null
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; RUN: bugpoint -load %llvmshlibdir/BugpointPasses%shlibext %s -output-prefix %t -bugpoint-crashcalls -silence-passes -disable-namedmd-remove > /dev/null
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; RUN: llvm-dis %t-reduced-simplified.bc -o - | FileCheck %s
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;
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; RUN: bugpoint -load %llvmshlibdir/BugpointPasses%shlibext %s -output-prefix %t-nodebug -bugpoint-crashcalls -silence-passes -disable-namedmd-remove > /dev/null
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; RUN: llvm-dis %t-nodebug-reduced-simplified.bc -o - | FileCheck %s --check-prefix=NODEBUG
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;
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; RUN: bugpoint -load %llvmshlibdir/BugpointPasses%shlibext %s -output-prefix %t-notype -bugpoint-crashcalls -silence-passes -disable-namedmd-remove -disable-strip-debuginfo > /dev/null
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; RUN: llvm-dis %t-notype-reduced-simplified.bc -o - | FileCheck %s --check-prefix=NOTYPE
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;
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; REQUIRES: loadable_module
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; Bugpoint should keep the call's metadata attached to the call.
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; CHECK: call void @foo(), !dbg ![[LOC:[0-9]+]], !attach ![[CALL:[0-9]+]]
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; NODEBUG: call void @foo(), !attach ![[CALL:[0-9]+]]
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; NOTYPE: call void @foo(), !dbg ![[LOC:[0-9]+]], !attach ![[CALL:[0-9]+]]
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||||
; NODEBUG-NOT: call void @foo(), !attach ![[CALL:[0-9]+]]
|
||||
; NOTYPE-NOT: !DIBasicType
|
||||
; NOTYPE: !DICompileUnit
|
||||
; NOTYPE-NOT: !DIBasicType
|
||||
; CHECK-DAG: ![[LOC]] = !DILocation(line: 104, column: 105, scope: ![[SCOPE:[0-9]+]])
|
||||
; CHECK-DAG: ![[SCOPE]] = distinct !DISubprogram(name: "test",{{.*}}file: ![[FILE:[0-9]+]]
|
||||
; CHECK-DAG: ![[FILE]] = !DIFile(filename: "source.c", directory: "/dir")
|
||||
@ -44,7 +32,7 @@ declare void @foo()
|
||||
!4 = !{!"filler"}
|
||||
|
||||
!8 = distinct !DICompileUnit(language: DW_LANG_C99, file: !15)
|
||||
!9 = distinct !DISubprogram(name: "test", file: !15, type: !18, unit: !8)
|
||||
!9 = distinct !DISubprogram(name: "test", file: !15, unit: !8)
|
||||
!10 = !DILocation(line: 100, column: 101, scope: !9)
|
||||
!11 = !DILocation(line: 102, column: 103, scope: !9)
|
||||
!12 = !DILocation(line: 104, column: 105, scope: !9)
|
||||
@ -53,6 +41,3 @@ declare void @foo()
|
||||
!15 = !DIFile(filename: "source.c", directory: "/dir")
|
||||
!16 = !{}
|
||||
!17 = !{i32 1, !"Debug Info Version", i32 3}
|
||||
!18 = !DISubroutineType(types: !19)
|
||||
!19 = !{!20, !20}
|
||||
!20 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
; RUN: bugpoint -load %llvmshlibdir/BugpointPasses%shlibext %s -output-prefix %t -bugpoint-crash-too-many-cus -silence-passes -disable-strip-debuginfo > /dev/null
|
||||
; RUN: bugpoint -load %llvmshlibdir/BugpointPasses%shlibext %s -output-prefix %t -bugpoint-crash-too-many-cus -silence-passes > /dev/null
|
||||
; RUN: llvm-dis %t-reduced-simplified.bc -o - | FileCheck %s
|
||||
; RUN-DISABLE: bugpoint -disable-namedmd-remove -load %llvmshlibdir/BugpointPasses%shlibext %s -output-prefix %t -bugpoint-crash-too-many-cus -silence-passes > /dev/null
|
||||
; RUN-DISABLE: llvm-dis %t-reduced-simplified.bc -o - | FileCheck %s
|
||||
|
||||
@ -1,24 +0,0 @@
|
||||
; RUN: opt -S -strip-nonlinetable-debuginfo %s -o - | FileCheck %s
|
||||
!llvm.dbg.cu = !{!2, !6}
|
||||
!llvm.gcov = !{!3}
|
||||
!llvm.module.flags = !{!7}
|
||||
|
||||
!1 = !DIFile(filename: "path/to/file", directory: "/path/to/dir")
|
||||
; The first CU is used for the line table, the second one is a module skeleton
|
||||
; and should be stripped.
|
||||
; CHECK: !llvm.dbg.cu = !{![[CU:[0-9]+]]}
|
||||
; CHECK: ![[CU]] = distinct !DICompileUnit({{.*}}"abc.debug"{{.*}}LineTablesOnly
|
||||
; CHECK-NOT: retainedTypes:
|
||||
; CHECK-SAME: )
|
||||
; CHECK-NOT: DICompositeType
|
||||
!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang",
|
||||
isOptimized: true, flags: "-O2", runtimeVersion: 2,
|
||||
splitDebugFilename: "abc.debug", emissionKind: FullDebug,
|
||||
retainedTypes: !4)
|
||||
!3 = !{!"path/to/file.o", !2}
|
||||
!4 = !{!5}
|
||||
!5 = !DICompositeType(tag: DW_TAG_structure_type, file: !1, identifier: "ThisWillBeStripped")
|
||||
!6 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang",
|
||||
splitDebugFilename: "abc.dwo", emissionKind: FullDebug,
|
||||
dwoId: 1234)
|
||||
!7 = !{i32 1, !"Debug Info Version", i32 3}
|
||||
@ -1,36 +0,0 @@
|
||||
; RUN: opt -S -strip-nonlinetable-debuginfo %s -o - | FileCheck %s
|
||||
; CHECK: define void @f() !dbg ![[F:[0-9]+]]
|
||||
define void @f() !dbg !4 {
|
||||
entry:
|
||||
%i = alloca i32, align 4
|
||||
; CHECK-NOT: llvm.dbg.declare
|
||||
call void @llvm.dbg.declare(metadata i32* %i, metadata !11, metadata !13), !dbg !14
|
||||
store i32 42, i32* %i, align 4, !dbg !14
|
||||
ret void, !dbg !15
|
||||
}
|
||||
|
||||
; Function Attrs: nounwind readnone
|
||||
declare void @llvm.dbg.declare(metadata, metadata, metadata)
|
||||
|
||||
!llvm.dbg.cu = !{!0}
|
||||
!llvm.module.flags = !{!7, !8, !9}
|
||||
!llvm.ident = !{!10}
|
||||
|
||||
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "LLVM", isOptimized: false, runtimeVersion: 0, emissionKind: 1, enums: !2)
|
||||
!1 = !DIFile(filename: "f.c", directory: "/")
|
||||
!2 = !{}
|
||||
; CHECK: ![[F]] = distinct !DISubprogram(name: "f"
|
||||
; CHECK-NOT: variables:
|
||||
; CHECK-NOT: distinct !DISubprogram(name: "f"
|
||||
!4 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 1, isOptimized: false, unit: !0, variables: !2)
|
||||
!5 = !DISubroutineType(types: !6)
|
||||
!6 = !{null}
|
||||
!7 = !{i32 2, !"Dwarf Version", i32 2}
|
||||
!8 = !{i32 2, !"Debug Info Version", i32 3}
|
||||
!9 = !{i32 1, !"PIC Level", i32 2}
|
||||
!10 = !{!"LLVM"}
|
||||
!11 = !DILocalVariable(name: "i", scope: !4, file: !1, line: 1, type: !12)
|
||||
!12 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
||||
!13 = !DIExpression()
|
||||
!14 = !DILocation(line: 1, column: 16, scope: !4)
|
||||
!15 = !DILocation(line: 1, column: 24, scope: !4)
|
||||
@ -1,21 +0,0 @@
|
||||
; RUN: opt -S -strip-nonlinetable-debuginfo %s -o - | FileCheck %s
|
||||
define internal i32 @"__hidden#2878_"() #0 !dbg !12 {
|
||||
ret i32 0, !dbg !634
|
||||
}
|
||||
!llvm.dbg.cu = !{!18}
|
||||
!llvm.module.flags = !{!482}
|
||||
!5 = !{}
|
||||
!2 = !{!12}
|
||||
; CHECK-NOT: DICompositeType
|
||||
; CHECK: distinct !DISubprogram(name: "f", {{.*}}, type: ![[FNTY:[0-9]+]]
|
||||
; CHECK: ![[FNTY]] = !DISubroutineType(types: ![[VOID:[0-9]+]])
|
||||
; CHECK: ![[VOID]] = !{}
|
||||
; CHECK-NOT: DICompositeType
|
||||
!12 = distinct !DISubprogram(name: "f", scope: !16, file: !16, line: 133, type: !13, isLocal: true, isDefinition: true, scopeLine: 133, flags: DIFlagPrototyped, isOptimized: true, unit: !18, variables: !5)
|
||||
!13 = !DISubroutineType(types: !14)
|
||||
!14 = !{!17}
|
||||
!16 = !DIFile(filename: "f.m", directory: "/")
|
||||
!17 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "e", scope: !18, file: !16, line: 13, size: 32, align: 32, flags: DIFlagFwdDecl)
|
||||
!18 = distinct !DICompileUnit(language: DW_LANG_ObjC, file: !16, producer: "clang", isOptimized: true, runtimeVersion: 2, emissionKind: 1, enums: !14, retainedTypes: !14, globals: !5, imports: !5)
|
||||
!482 = !{i32 2, !"Debug Info Version", i32 3}
|
||||
!634 = !DILocation(line: 143, column: 5, scope: !12)
|
||||
@ -1,82 +0,0 @@
|
||||
; RUN: opt -S -strip-nonlinetable-debuginfo %s -o - | FileCheck %s
|
||||
; Generated an reduced from:
|
||||
; struct A {
|
||||
; virtual ~A();
|
||||
; };
|
||||
; struct B : A {};
|
||||
; B b;
|
||||
|
||||
source_filename = "t.cpp"
|
||||
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
|
||||
target triple = "x86_64-apple-macosx10.12.0"
|
||||
|
||||
%struct.B = type { %struct.A }
|
||||
%struct.A = type { i32 (...)** }
|
||||
|
||||
; CHECK: @b = global
|
||||
; CHECK-NOT: !dbg
|
||||
@b = global %struct.B zeroinitializer, align 8, !dbg !0
|
||||
|
||||
declare void @_ZN1BC2Ev(%struct.B*) unnamed_addr
|
||||
|
||||
; Function Attrs: nounwind readnone
|
||||
declare void @llvm.dbg.declare(metadata, metadata, metadata) #0
|
||||
|
||||
; Function Attrs: inlinehint nounwind ssp uwtable
|
||||
; CHECK: define
|
||||
define linkonce_odr void @_ZN1BC1Ev(%struct.B* %this) unnamed_addr #1 align 2 !dbg !24 {
|
||||
entry:
|
||||
%this.addr = alloca %struct.B*, align 8
|
||||
store %struct.B* %this, %struct.B** %this.addr, align 8
|
||||
; CHECK-NOT: @llvm.dbg.declare
|
||||
call void @llvm.dbg.declare(metadata %struct.B** %this.addr, metadata !29, metadata !31), !dbg !32
|
||||
%this1 = load %struct.B*, %struct.B** %this.addr, align 8
|
||||
; CHECK: call void @_ZN1BC2Ev(%struct.B* %this1){{.*}} !dbg !
|
||||
call void @_ZN1BC2Ev(%struct.B* %this1) #2, !dbg !33
|
||||
ret void, !dbg !33
|
||||
}
|
||||
|
||||
attributes #0 = { nounwind readnone }
|
||||
attributes #1 = { inlinehint nounwind ssp uwtable }
|
||||
attributes #2 = { nounwind }
|
||||
|
||||
!llvm.dbg.cu = !{!1}
|
||||
!llvm.module.flags = !{!20, !21, !22}
|
||||
!llvm.ident = !{!23}
|
||||
|
||||
; CHECK-NOT: !DI{{Basic|Composite|Derived}}Type
|
||||
|
||||
!0 = distinct !DIGlobalVariable(name: "b", scope: !1, file: !2, line: 5, type: !5, isLocal: false, isDefinition: true)
|
||||
!1 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "clang version 4.0.0 (trunk 282583) (llvm/trunk 282611)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !3, globals: !4)
|
||||
!2 = !DIFile(filename: "t.cpp", directory: "/")
|
||||
!3 = !{}
|
||||
!4 = !{!0}
|
||||
!5 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "B", file: !2, line: 4, size: 64, align: 64, elements: !6, vtableHolder: !8, identifier: "_ZTS1B")
|
||||
!6 = !{!7}
|
||||
!7 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !5, baseType: !8)
|
||||
!8 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "A", file: !2, line: 1, size: 64, align: 64, elements: !9, vtableHolder: !8, identifier: "_ZTS1A")
|
||||
!9 = !{!10, !16}
|
||||
!10 = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$A", scope: !2, file: !2, baseType: !11, size: 64, flags: DIFlagArtificial)
|
||||
!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64)
|
||||
!12 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "__vtbl_ptr_type", baseType: !13, size: 64)
|
||||
!13 = !DISubroutineType(types: !14)
|
||||
!14 = !{!15}
|
||||
!15 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
||||
!16 = !DISubprogram(name: "~A", scope: !8, file: !2, line: 2, type: !17, isLocal: false, isDefinition: false, scopeLine: 2, containingType: !8, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 0, flags: DIFlagPrototyped, isOptimized: false)
|
||||
!17 = !DISubroutineType(types: !18)
|
||||
!18 = !{null, !19}
|
||||
!19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
|
||||
!20 = !{i32 2, !"Dwarf Version", i32 4}
|
||||
!21 = !{i32 2, !"Debug Info Version", i32 3}
|
||||
!22 = !{i32 1, !"PIC Level", i32 2}
|
||||
!23 = !{!"clang version 4.0.0 (trunk 282583) (llvm/trunk 282611)"}
|
||||
!24 = distinct !DISubprogram(name: "B", linkageName: "_ZN1BC1Ev", scope: !5, file: !2, line: 4, type: !25, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, unit: !1, declaration: !28, variables: !3)
|
||||
!25 = !DISubroutineType(types: !26)
|
||||
!26 = !{null, !27}
|
||||
!27 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !5, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
|
||||
!28 = !DISubprogram(name: "B", scope: !5, type: !25, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false)
|
||||
!29 = !DILocalVariable(name: "this", arg: 1, scope: !24, type: !30, flags: DIFlagArtificial | DIFlagObjectPointer)
|
||||
!30 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !5, size: 64, align: 64)
|
||||
!31 = !DIExpression()
|
||||
!32 = !DILocation(line: 0, scope: !24)
|
||||
!33 = !DILocation(line: 4, column: 8, scope: !24)
|
||||
@ -19,7 +19,6 @@
|
||||
#include "llvm/Analysis/TargetTransformInfo.h"
|
||||
#include "llvm/IR/CFG.h"
|
||||
#include "llvm/IR/Constants.h"
|
||||
#include "llvm/IR/DebugInfo.h"
|
||||
#include "llvm/IR/DerivedTypes.h"
|
||||
#include "llvm/IR/Instructions.h"
|
||||
#include "llvm/IR/LegacyPassManager.h"
|
||||
@ -55,12 +54,6 @@ cl::opt<bool> DontReducePassList("disable-pass-list-reduction",
|
||||
cl::opt<bool> NoNamedMDRM("disable-namedmd-remove",
|
||||
cl::desc("Do not remove global named metadata"),
|
||||
cl::init(false));
|
||||
cl::opt<bool> NoStripDebugInfo("disable-strip-debuginfo",
|
||||
cl::desc("Do not strip debug info metadata"),
|
||||
cl::init(false));
|
||||
cl::opt<bool> NoStripDebugTypeInfo("disable-strip-debug-types",
|
||||
cl::desc("Do not strip debug type info metadata"),
|
||||
cl::init(false));
|
||||
cl::opt<bool> VerboseErrors("verbose-errors",
|
||||
cl::desc("Print the output of crashing program"),
|
||||
cl::init(false));
|
||||
@ -1130,30 +1123,6 @@ static Error DebugACrash(BugDriver &BD,
|
||||
if (Error E = ReduceInsts(BD, TestFn))
|
||||
return E;
|
||||
|
||||
if (!NoStripDebugInfo) {
|
||||
if (!BugpointIsInterrupted) {
|
||||
outs() << "\n*** Attempting to strip the debug info: ";
|
||||
Module *M = CloneModule(BD.getProgram()).release();
|
||||
StripDebugInfo(*M);
|
||||
if (TestFn(BD, M))
|
||||
BD.setNewProgram(M);
|
||||
else
|
||||
delete M;
|
||||
}
|
||||
}
|
||||
|
||||
if (!NoStripDebugTypeInfo) {
|
||||
if (!BugpointIsInterrupted) {
|
||||
outs() << "\n*** Attempting to strip the debug type info: ";
|
||||
Module *M = CloneModule(BD.getProgram()).release();
|
||||
stripNonLineTableDebugInfo(*M);
|
||||
if (TestFn(BD, M))
|
||||
BD.setNewProgram(M);
|
||||
else
|
||||
delete M;
|
||||
}
|
||||
}
|
||||
|
||||
if (!NoNamedMDRM) {
|
||||
if (!BugpointIsInterrupted) {
|
||||
// Try to reduce the amount of global metadata (particularly debug info),
|
||||
|
||||
Loading…
Reference in New Issue
Block a user