#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/InlineAsm.h"
+#include "llvm/IR/InstIterator.h"
#include "llvm/IR/InstVisitor.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/LLVMContext.h"
static cl::opt<bool> VerifyDebugInfo("verify-debug-info", cl::init(false));
namespace {
-class Verifier : public InstVisitor<Verifier> {
- friend class InstVisitor<Verifier>;
-
+struct VerifierSupport {
raw_ostream &OS;
const Module *M;
+
+ /// \brief Track the brokenness of the module while recursively visiting.
+ bool Broken;
+
+ explicit VerifierSupport(raw_ostream &OS)
+ : OS(OS), M(nullptr), Broken(false) {}
+
+ void WriteValue(const Value *V) {
+ if (!V)
+ return;
+ if (isa<Instruction>(V)) {
+ OS << *V << '\n';
+ } else {
+ V->printAsOperand(OS, true, M);
+ OS << '\n';
+ }
+ }
+
+ void WriteType(Type *T) {
+ if (!T)
+ return;
+ OS << ' ' << *T;
+ }
+
+ // CheckFailed - A check failed, so print out the condition and the message
+ // that failed. This provides a nice place to put a breakpoint if you want
+ // to see why something is not correct.
+ void CheckFailed(const Twine &Message, const Value *V1 = nullptr,
+ const Value *V2 = nullptr, const Value *V3 = nullptr,
+ const Value *V4 = nullptr) {
+ OS << Message.str() << "\n";
+ WriteValue(V1);
+ WriteValue(V2);
+ WriteValue(V3);
+ WriteValue(V4);
+ Broken = true;
+ }
+
+ void CheckFailed(const Twine &Message, const Value *V1, Type *T2,
+ const Value *V3 = nullptr) {
+ OS << Message.str() << "\n";
+ WriteValue(V1);
+ WriteType(T2);
+ WriteValue(V3);
+ Broken = true;
+ }
+
+ void CheckFailed(const Twine &Message, Type *T1, Type *T2 = nullptr,
+ Type *T3 = nullptr) {
+ OS << Message.str() << "\n";
+ WriteType(T1);
+ WriteType(T2);
+ WriteType(T3);
+ Broken = true;
+ }
+};
+class Verifier : public InstVisitor<Verifier>, VerifierSupport {
+ friend class InstVisitor<Verifier>;
+
LLVMContext *Context;
const DataLayout *DL;
DominatorTree DT;
/// personality function.
const Value *PersonalityFn;
- /// \brief Finder keeps track of all debug info MDNodes in a Module.
- DebugInfoFinder Finder;
-
- /// \brief Track the brokenness of the module while recursively visiting.
- bool Broken;
-
public:
explicit Verifier(raw_ostream &OS = dbgs())
- : OS(OS), M(nullptr), Context(nullptr), DL(nullptr),
- PersonalityFn(nullptr), Broken(false) {}
+ : VerifierSupport(OS), Context(nullptr), DL(nullptr),
+ PersonalityFn(nullptr) {}
bool verify(const Function &F) {
M = F.getParent();
// FIXME: It's really gross that we have to cast away constness here.
DT.recalculate(const_cast<Function &>(F));
- Finder.reset();
Broken = false;
// FIXME: We strip const here because the inst visitor strips const.
visit(const_cast<Function &>(F));
InstsInThisBlock.clear();
PersonalityFn = nullptr;
- if (VerifyDebugInfo)
- // Verify Debug Info.
- verifyDebugInfo();
-
return !Broken;
}
bool verify(const Module &M) {
this->M = &M;
Context = &M.getContext();
- Finder.reset();
Broken = false;
// Scan through, checking all of the external function's linkage now...
visitModuleFlags(M);
visitModuleIdents(M);
- if (VerifyDebugInfo) {
- Finder.reset();
- Finder.processModule(M);
- // Verify Debug Info.
- verifyDebugInfo();
- }
-
return !Broken;
}
void visitGlobalValue(const GlobalValue &GV);
void visitGlobalVariable(const GlobalVariable &GV);
void visitGlobalAlias(const GlobalAlias &GA);
+ void visitAliaseeSubExpr(const GlobalAlias &A, const Constant &C);
+ void visitAliaseeSubExpr(SmallPtrSet<const GlobalAlias *, 4> &Visited,
+ const GlobalAlias &A, const Constant &C);
void visitNamedMDNode(const NamedMDNode &NMD);
void visitMDNode(MDNode &MD, Function *F);
void visitModuleIdents(const Module &M);
void visitLandingPadInst(LandingPadInst &LPI);
void VerifyCallSite(CallSite CS);
+ void verifyMustTailCall(CallInst &CI);
bool PerformTypeCheck(Intrinsic::ID ID, Function *F, Type *Ty, int VT,
unsigned ArgNo, std::string &Suffix);
bool VerifyIntrinsicType(Type *Ty, ArrayRef<Intrinsic::IITDescriptor> &Infos,
void VerifyBitcastType(const Value *V, Type *DestTy, Type *SrcTy);
void VerifyConstantExprBitcastType(const ConstantExpr *CE);
+};
+class DebugInfoVerifier : public VerifierSupport {
+public:
+ explicit DebugInfoVerifier(raw_ostream &OS = dbgs()) : VerifierSupport(OS) {}
- void verifyDebugInfo();
-
- void WriteValue(const Value *V) {
- if (!V)
- return;
- if (isa<Instruction>(V)) {
- OS << *V << '\n';
- } else {
- V->printAsOperand(OS, true, M);
- OS << '\n';
- }
- }
-
- void WriteType(Type *T) {
- if (!T)
- return;
- OS << ' ' << *T;
- }
-
- // CheckFailed - A check failed, so print out the condition and the message
- // that failed. This provides a nice place to put a breakpoint if you want
- // to see why something is not correct.
- void CheckFailed(const Twine &Message, const Value *V1 = nullptr,
- const Value *V2 = nullptr, const Value *V3 = nullptr,
- const Value *V4 = nullptr) {
- OS << Message.str() << "\n";
- WriteValue(V1);
- WriteValue(V2);
- WriteValue(V3);
- WriteValue(V4);
- Broken = true;
- }
-
- void CheckFailed(const Twine &Message, const Value *V1, Type *T2,
- const Value *V3 = nullptr) {
- OS << Message.str() << "\n";
- WriteValue(V1);
- WriteType(T2);
- WriteValue(V3);
- Broken = true;
+ bool verify(const Module &M) {
+ this->M = &M;
+ verifyDebugInfo();
+ return !Broken;
}
- void CheckFailed(const Twine &Message, Type *T1, Type *T2 = nullptr,
- Type *T3 = nullptr) {
- OS << Message.str() << "\n";
- WriteType(T1);
- WriteType(T2);
- WriteType(T3);
- Broken = true;
- }
+private:
+ void verifyDebugInfo();
+ void processInstructions(DebugInfoFinder &Finder);
+ void processCallInst(DebugInfoFinder &Finder, const CallInst &CI);
};
} // End anonymous namespace
void Verifier::visitGlobalValue(const GlobalValue &GV) {
- Assert1(!GV.isDeclaration() ||
- GV.isMaterializable() ||
- GV.hasExternalLinkage() ||
- GV.hasExternalWeakLinkage() ||
- (isa<GlobalAlias>(GV) &&
- (GV.hasLocalLinkage() || GV.hasWeakLinkage())),
+ Assert1(!GV.isDeclaration() || GV.isMaterializable() ||
+ GV.hasExternalLinkage() || GV.hasExternalWeakLinkage(),
"Global is external, but doesn't have external or weak linkage!",
&GV);
"invalid linkage for intrinsic global variable", &GV);
// Don't worry about emitting an error for it not being an array,
// visitGlobalValue will complain on appending non-array.
- if (ArrayType *ATy = dyn_cast<ArrayType>(GV.getType())) {
+ if (ArrayType *ATy = dyn_cast<ArrayType>(GV.getType()->getElementType())) {
StructType *STy = dyn_cast<StructType>(ATy->getElementType());
PointerType *FuncPtrTy =
FunctionType::get(Type::getVoidTy(*Context), false)->getPointerTo();
- Assert1(STy && STy->getNumElements() == 2 &&
+ // FIXME: Reject the 2-field form in LLVM 4.0.
+ Assert1(STy && (STy->getNumElements() == 2 ||
+ STy->getNumElements() == 3) &&
STy->getTypeAtIndex(0u)->isIntegerTy(32) &&
STy->getTypeAtIndex(1) == FuncPtrTy,
"wrong type for intrinsic global variable", &GV);
+ if (STy->getNumElements() == 3) {
+ Type *ETy = STy->getTypeAtIndex(2);
+ Assert1(ETy->isPointerTy() &&
+ cast<PointerType>(ETy)->getElementType()->isIntegerTy(8),
+ "wrong type for intrinsic global variable", &GV);
+ }
}
}
visitGlobalValue(GV);
}
-void Verifier::visitGlobalAlias(const GlobalAlias &GA) {
- Assert1(!GA.getName().empty(),
- "Alias name cannot be empty!", &GA);
- Assert1(GlobalAlias::isValidLinkage(GA.getLinkage()),
- "Alias should have external or external weak linkage!", &GA);
- Assert1(GA.getAliasee(),
- "Aliasee cannot be NULL!", &GA);
- Assert1(GA.getType() == GA.getAliasee()->getType(),
- "Alias and aliasee types should match!", &GA);
- Assert1(!GA.hasUnnamedAddr(), "Alias cannot have unnamed_addr!", &GA);
- Assert1(!GA.hasSection(), "Alias cannot have a section!", &GA);
- Assert1(!GA.getAlignment(), "Alias connot have an alignment", &GA);
-
- const Constant *Aliasee = GA.getAliasee();
- const GlobalValue *GV = dyn_cast<GlobalValue>(Aliasee);
-
- if (!GV) {
- const ConstantExpr *CE = dyn_cast<ConstantExpr>(Aliasee);
- if (CE && (CE->getOpcode() == Instruction::BitCast ||
- CE->getOpcode() == Instruction::AddrSpaceCast ||
- CE->getOpcode() == Instruction::GetElementPtr))
- GV = dyn_cast<GlobalValue>(CE->getOperand(0));
+void Verifier::visitAliaseeSubExpr(const GlobalAlias &GA, const Constant &C) {
+ SmallPtrSet<const GlobalAlias*, 4> Visited;
+ Visited.insert(&GA);
+ visitAliaseeSubExpr(Visited, GA, C);
+}
- Assert1(GV, "Aliasee should be either GlobalValue, bitcast or "
- "addrspacecast of GlobalValue",
- &GA);
+void Verifier::visitAliaseeSubExpr(SmallPtrSet<const GlobalAlias *, 4> &Visited,
+ const GlobalAlias &GA, const Constant &C) {
+ if (const auto *GV = dyn_cast<GlobalValue>(&C)) {
+ Assert1(!GV->isDeclaration(), "Alias must point to a definition", &GA);
- if (CE->getOpcode() == Instruction::BitCast) {
- unsigned SrcAS = GV->getType()->getPointerAddressSpace();
- unsigned DstAS = CE->getType()->getPointerAddressSpace();
+ if (const auto *GA2 = dyn_cast<GlobalAlias>(GV)) {
+ Assert1(Visited.insert(GA2), "Aliases cannot form a cycle", &GA);
- Assert1(SrcAS == DstAS,
- "Alias bitcasts cannot be between different address spaces",
+ Assert1(!GA2->mayBeOverridden(), "Alias cannot point to a weak alias",
&GA);
}
}
- Assert1(!GV->isDeclaration(), "Alias must point to a definition", &GA);
- if (const GlobalAlias *GAAliasee = dyn_cast<GlobalAlias>(GV)) {
- Assert1(!GAAliasee->mayBeOverridden(), "Alias cannot point to a weak alias",
- &GA);
+
+ if (const auto *CE = dyn_cast<ConstantExpr>(&C))
+ VerifyConstantExprBitcastType(CE);
+
+ for (const Use &U : C.operands()) {
+ Value *V = &*U;
+ if (const auto *GA2 = dyn_cast<GlobalAlias>(V))
+ visitAliaseeSubExpr(Visited, GA, *GA2->getAliasee());
+ else if (const auto *C2 = dyn_cast<Constant>(V))
+ visitAliaseeSubExpr(Visited, GA, *C2);
}
+}
- const GlobalValue *AG = GA.getAliasedGlobal();
- Assert1(AG, "Aliasing chain should end with function or global variable",
- &GA);
+void Verifier::visitGlobalAlias(const GlobalAlias &GA) {
+ Assert1(!GA.getName().empty(),
+ "Alias name cannot be empty!", &GA);
+ Assert1(GlobalAlias::isValidLinkage(GA.getLinkage()),
+ "Alias should have external or external weak linkage!", &GA);
+ const Constant *Aliasee = GA.getAliasee();
+ Assert1(Aliasee, "Aliasee cannot be NULL!", &GA);
+ Assert1(GA.getType() == Aliasee->getType(),
+ "Alias and aliasee types should match!", &GA);
+
+ Assert1(isa<GlobalValue>(Aliasee) || isa<ConstantExpr>(Aliasee),
+ "Aliasee should be either GlobalValue or ConstantExpr", &GA);
+
+ visitAliaseeSubExpr(GA, *Aliasee);
visitGlobalValue(GA);
}
I->getKindAsEnum() == Attribute::Builtin ||
I->getKindAsEnum() == Attribute::NoBuiltin ||
I->getKindAsEnum() == Attribute::Cold ||
- I->getKindAsEnum() == Attribute::OptimizeNone) {
+ I->getKindAsEnum() == Attribute::OptimizeNone ||
+ I->getKindAsEnum() == Attribute::JumpTable) {
if (!isFunction) {
CheckFailed("Attribute '" + I->getAsString() +
"' only applies to functions!", V);
bool SawNest = false;
bool SawReturned = false;
+ bool SawSRet = false;
for (unsigned i = 0, e = Attrs.getNumSlots(); i != e; ++i) {
unsigned Idx = Attrs.getSlotIndex(i);
SawReturned = true;
}
- if (Attrs.hasAttribute(Idx, Attribute::StructRet))
- Assert1(Idx == 1, "Attribute sret is not on first parameter!", V);
+ if (Attrs.hasAttribute(Idx, Attribute::StructRet)) {
+ Assert1(!SawSRet, "Cannot have multiple 'sret' parameters!", V);
+ Assert1(Idx == 1 || Idx == 2,
+ "Attribute 'sret' is not on first or second parameter!", V);
+ SawSRet = true;
+ }
if (Attrs.hasAttribute(Idx, Attribute::InAlloca)) {
Assert1(Idx == FT->getNumParams(),
Attribute::MinSize),
"Attributes 'minsize and optnone' are incompatible!", V);
}
+
+ if (Attrs.hasAttribute(AttributeSet::FunctionIndex,
+ Attribute::JumpTable)) {
+ const GlobalValue *GV = cast<GlobalValue>(V);
+ Assert1(GV->hasUnnamedAddr(),
+ "Attribute 'jumptable' requires 'unnamed_addr'", V);
+
+ }
}
void Verifier::VerifyBitcastType(const Value *V, Type *DestTy, Type *SrcTy) {
// Verify call attributes.
VerifyFunctionAttrs(FTy, Attrs, I);
+ // Conservatively check the inalloca argument.
+ // We have a bug if we can find that there is an underlying alloca without
+ // inalloca.
+ if (CS.hasInAllocaArgument()) {
+ Value *InAllocaArg = CS.getArgument(FTy->getNumParams() - 1);
+ if (auto AI = dyn_cast<AllocaInst>(InAllocaArg->stripInBoundsOffsets()))
+ Assert2(AI->isUsedWithInAlloca(),
+ "inalloca argument for call has mismatched alloca", AI, I);
+ }
+
if (FTy->isVarArg()) {
// FIXME? is 'nest' even legal here?
bool SawNest = false;
visitInstruction(*I);
}
+/// Two types are "congruent" if they are identical, or if they are both pointer
+/// types with different pointee types and the same address space.
+static bool isTypeCongruent(Type *L, Type *R) {
+ if (L == R)
+ return true;
+ PointerType *PL = dyn_cast<PointerType>(L);
+ PointerType *PR = dyn_cast<PointerType>(R);
+ if (!PL || !PR)
+ return false;
+ return PL->getAddressSpace() == PR->getAddressSpace();
+}
+
+static AttrBuilder getParameterABIAttributes(int I, AttributeSet Attrs) {
+ static const Attribute::AttrKind ABIAttrs[] = {
+ Attribute::StructRet, Attribute::ByVal, Attribute::InAlloca,
+ Attribute::InReg, Attribute::Returned};
+ AttrBuilder Copy;
+ for (auto AK : ABIAttrs) {
+ if (Attrs.hasAttribute(I + 1, AK))
+ Copy.addAttribute(AK);
+ }
+ if (Attrs.hasAttribute(I + 1, Attribute::Alignment))
+ Copy.addAlignmentAttr(Attrs.getParamAlignment(I + 1));
+ return Copy;
+}
+
+void Verifier::verifyMustTailCall(CallInst &CI) {
+ Assert1(!CI.isInlineAsm(), "cannot use musttail call with inline asm", &CI);
+
+ // - The caller and callee prototypes must match. Pointer types of
+ // parameters or return types may differ in pointee type, but not
+ // address space.
+ Function *F = CI.getParent()->getParent();
+ auto GetFnTy = [](Value *V) {
+ return cast<FunctionType>(
+ cast<PointerType>(V->getType())->getElementType());
+ };
+ FunctionType *CallerTy = GetFnTy(F);
+ FunctionType *CalleeTy = GetFnTy(CI.getCalledValue());
+ Assert1(CallerTy->getNumParams() == CalleeTy->getNumParams(),
+ "cannot guarantee tail call due to mismatched parameter counts", &CI);
+ Assert1(CallerTy->isVarArg() == CalleeTy->isVarArg(),
+ "cannot guarantee tail call due to mismatched varargs", &CI);
+ Assert1(isTypeCongruent(CallerTy->getReturnType(), CalleeTy->getReturnType()),
+ "cannot guarantee tail call due to mismatched return types", &CI);
+ for (int I = 0, E = CallerTy->getNumParams(); I != E; ++I) {
+ Assert1(
+ isTypeCongruent(CallerTy->getParamType(I), CalleeTy->getParamType(I)),
+ "cannot guarantee tail call due to mismatched parameter types", &CI);
+ }
+
+ // - The calling conventions of the caller and callee must match.
+ Assert1(F->getCallingConv() == CI.getCallingConv(),
+ "cannot guarantee tail call due to mismatched calling conv", &CI);
+
+ // - All ABI-impacting function attributes, such as sret, byval, inreg,
+ // returned, and inalloca, must match.
+ AttributeSet CallerAttrs = F->getAttributes();
+ AttributeSet CalleeAttrs = CI.getAttributes();
+ for (int I = 0, E = CallerTy->getNumParams(); I != E; ++I) {
+ AttrBuilder CallerABIAttrs = getParameterABIAttributes(I, CallerAttrs);
+ AttrBuilder CalleeABIAttrs = getParameterABIAttributes(I, CalleeAttrs);
+ Assert2(CallerABIAttrs == CalleeABIAttrs,
+ "cannot guarantee tail call due to mismatched ABI impacting "
+ "function attributes", &CI, CI.getOperand(I));
+ }
+
+ // - The call must immediately precede a :ref:`ret <i_ret>` instruction,
+ // or a pointer bitcast followed by a ret instruction.
+ // - The ret instruction must return the (possibly bitcasted) value
+ // produced by the call or void.
+ Value *RetVal = &CI;
+ Instruction *Next = CI.getNextNode();
+
+ // Handle the optional bitcast.
+ if (BitCastInst *BI = dyn_cast_or_null<BitCastInst>(Next)) {
+ Assert1(BI->getOperand(0) == RetVal,
+ "bitcast following musttail call must use the call", BI);
+ RetVal = BI;
+ Next = BI->getNextNode();
+ }
+
+ // Check the return.
+ ReturnInst *Ret = dyn_cast_or_null<ReturnInst>(Next);
+ Assert1(Ret, "musttail call must be precede a ret with an optional bitcast",
+ &CI);
+ Assert1(!Ret->getReturnValue() || Ret->getReturnValue() == RetVal,
+ "musttail call result must be returned", Ret);
+}
+
void Verifier::visitCallInst(CallInst &CI) {
VerifyCallSite(&CI);
+ if (CI.isMustTailCall())
+ verifyMustTailCall(CI);
+
if (Function *F = CI.getCalledFunction())
if (Intrinsic::ID ID = (Intrinsic::ID)F->getIntrinsicID())
visitIntrinsicFunctionCall(ID, CI);
Assert1(isa<Constant>(PersonalityFn), "Personality function is not constant!",
&LPI);
for (unsigned i = 0, e = LPI.getNumClauses(); i < e; ++i) {
- Value *Clause = LPI.getClause(i);
- Assert1(isa<Constant>(Clause), "Clause is not constant!", &LPI);
+ Constant *Clause = LPI.getClause(i);
if (LPI.isCatch(i)) {
Assert1(isa<PointerType>(Clause->getType()),
"Catch operand does not have pointer type!", &LPI);
MDNode *MD = I.getMetadata(LLVMContext::MD_range);
Assert1(!MD || isa<LoadInst>(I), "Ranges are only for loads!", &I);
- if (VerifyDebugInfo) {
- MD = I.getMetadata(LLVMContext::MD_dbg);
- Finder.processLocation(*M, DILocation(MD));
- }
-
InstsInThisBlock.insert(&I);
}
MDNode *MD = cast<MDNode>(CI.getArgOperand(0));
Assert1(MD->getNumOperands() == 1,
"invalid llvm.dbg.declare intrinsic call 2", &CI);
- if (VerifyDebugInfo)
- Finder.processDeclare(*M, cast<DbgDeclareInst>(&CI));
} break;
- case Intrinsic::dbg_value: { //llvm.dbg.value
- if (VerifyDebugInfo) {
- Assert1(CI.getArgOperand(0) && isa<MDNode>(CI.getArgOperand(0)),
- "invalid llvm.dbg.value intrinsic call 1", &CI);
- Finder.processValue(*M, cast<DbgValueInst>(&CI));
- }
- break;
- }
case Intrinsic::memcpy:
case Intrinsic::memmove:
case Intrinsic::memset:
}
}
-void Verifier::verifyDebugInfo() {
+void DebugInfoVerifier::verifyDebugInfo() {
+ if (!VerifyDebugInfo)
+ return;
+
+ DebugInfoFinder Finder;
+ Finder.processModule(*M);
+ processInstructions(Finder);
+
// Verify Debug Info.
- if (VerifyDebugInfo) {
- for (DICompileUnit CU : Finder.compile_units()) {
- Assert1(CU.Verify(), "DICompileUnit does not Verify!", CU);
- }
- for (DISubprogram S : Finder.subprograms()) {
- Assert1(S.Verify(), "DISubprogram does not Verify!", S);
- }
- for (DIGlobalVariable GV : Finder.global_variables()) {
- Assert1(GV.Verify(), "DIGlobalVariable does not Verify!", GV);
- }
- for (DIType T : Finder.types()) {
- Assert1(T.Verify(), "DIType does not Verify!", T);
- }
- for (DIScope S : Finder.scopes()) {
- Assert1(S.Verify(), "DIScope does not Verify!", S);
- }
+ //
+ // NOTE: The loud braces are necessary for MSVC compatibility.
+ for (DICompileUnit CU : Finder.compile_units()) {
+ Assert1(CU.Verify(), "DICompileUnit does not Verify!", CU);
}
+ for (DISubprogram S : Finder.subprograms()) {
+ Assert1(S.Verify(), "DISubprogram does not Verify!", S);
+ }
+ for (DIGlobalVariable GV : Finder.global_variables()) {
+ Assert1(GV.Verify(), "DIGlobalVariable does not Verify!", GV);
+ }
+ for (DIType T : Finder.types()) {
+ Assert1(T.Verify(), "DIType does not Verify!", T);
+ }
+ for (DIScope S : Finder.scopes()) {
+ Assert1(S.Verify(), "DIScope does not Verify!", S);
+ }
+}
+
+void DebugInfoVerifier::processInstructions(DebugInfoFinder &Finder) {
+ for (const Function &F : *M)
+ for (auto I = inst_begin(&F), E = inst_end(&F); I != E; ++I) {
+ if (MDNode *MD = I->getMetadata(LLVMContext::MD_dbg))
+ Finder.processLocation(*M, DILocation(MD));
+ if (const CallInst *CI = dyn_cast<CallInst>(&*I))
+ processCallInst(Finder, *CI);
+ }
+}
+
+void DebugInfoVerifier::processCallInst(DebugInfoFinder &Finder,
+ const CallInst &CI) {
+ if (Function *F = CI.getCalledFunction())
+ if (Intrinsic::ID ID = (Intrinsic::ID)F->getIntrinsicID())
+ switch (ID) {
+ case Intrinsic::dbg_declare:
+ Finder.processDeclare(*M, cast<DbgDeclareInst>(&CI));
+ break;
+ case Intrinsic::dbg_value:
+ Finder.processValue(*M, cast<DbgValueInst>(&CI));
+ break;
+ default:
+ break;
+ }
}
//===----------------------------------------------------------------------===//
// Note that this function's return value is inverted from what you would
// expect of a function called "verify".
- return !V.verify(M) || Broken;
+ DebugInfoVerifier DIV(OS ? *OS : NullStr);
+ return !V.verify(M) || !DIV.verify(M) || Broken;
}
namespace {
AU.setPreservesAll();
}
};
+struct DebugInfoVerifierLegacyPass : public ModulePass {
+ static char ID;
+
+ DebugInfoVerifier V;
+ bool FatalErrors;
+
+ DebugInfoVerifierLegacyPass() : ModulePass(ID), FatalErrors(true) {
+ initializeDebugInfoVerifierLegacyPassPass(*PassRegistry::getPassRegistry());
+ }
+ explicit DebugInfoVerifierLegacyPass(bool FatalErrors)
+ : ModulePass(ID), V(dbgs()), FatalErrors(FatalErrors) {
+ initializeDebugInfoVerifierLegacyPassPass(*PassRegistry::getPassRegistry());
+ }
+
+ bool runOnModule(Module &M) override {
+ if (!V.verify(M) && FatalErrors)
+ report_fatal_error("Broken debug info found, compilation aborted!");
+
+ return false;
+ }
+
+ void getAnalysisUsage(AnalysisUsage &AU) const override {
+ AU.setPreservesAll();
+ }
+};
}
char VerifierLegacyPass::ID = 0;
INITIALIZE_PASS(VerifierLegacyPass, "verify", "Module Verifier", false, false)
+char DebugInfoVerifierLegacyPass::ID = 0;
+INITIALIZE_PASS(DebugInfoVerifierLegacyPass, "verify-di", "Debug Info Verifier",
+ false, false)
+
FunctionPass *llvm::createVerifierPass(bool FatalErrors) {
return new VerifierLegacyPass(FatalErrors);
}
+ModulePass *llvm::createDebugInfoVerifierPass(bool FatalErrors) {
+ return new DebugInfoVerifierLegacyPass(FatalErrors);
+}
+
PreservedAnalyses VerifierPass::run(Module *M) {
if (verifyModule(*M, &dbgs()) && FatalErrors)
report_fatal_error("Broken module found, compilation aborted!");
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