// only by the unwind edge of an invoke instruction.
// * A landingpad instruction must be the first non-PHI instruction in the
// block.
-// * All landingpad instructions must use the same personality function with
-// the same function.
+// * Landingpad instructions must be in a function with a personality function.
// * All other things that are tested by asserts spread about the code...
//
//===----------------------------------------------------------------------===//
Write(&*I);
}
+ void Write(const Module *M) {
+ if (!M)
+ return;
+ OS << "; ModuleID = '" << M->getModuleIdentifier() << "'\n";
+ }
+
void Write(const Value *V) {
if (!V)
return;
void visitFunction(const Function &F);
void visitBasicBlock(BasicBlock &BB);
void visitRangeMetadata(Instruction& I, MDNode* Range, Type* Ty);
+ void visitDereferenceableMetadata(Instruction& I, MDNode* MD);
template <class Ty> bool isValidMetadataArray(const MDTuple &N);
#define HANDLE_SPECIALIZED_MDNODE_LEAF(CLASS) void visit##CLASS(const CLASS &N);
void Verifier::visitAliaseeSubExpr(SmallPtrSetImpl<const GlobalAlias*> &Visited,
const GlobalAlias &GA, const Constant &C) {
if (const auto *GV = dyn_cast<GlobalValue>(&C)) {
- Assert(!GV->isDeclaration(), "Alias must point to a definition", &GA);
+ Assert(!GV->isDeclarationForLinker(), "Alias must point to a definition",
+ &GA);
if (const auto *GA2 = dyn_cast<GlobalAlias>(GV)) {
Assert(Visited.insert(GA2).second, "Aliases cannot form a cycle", &GA);
Assert(isa<DISubroutineType>(T), "invalid subroutine type", &N, T);
Assert(isTypeRef(N, N.getRawContainingType()), "invalid containing type", &N,
N.getRawContainingType());
- if (auto *RawF = N.getRawFunction()) {
- auto *FMD = dyn_cast<ConstantAsMetadata>(RawF);
- auto *F = FMD ? FMD->getValue() : nullptr;
- auto *FT = F ? dyn_cast<PointerType>(F->getType()) : nullptr;
- Assert(F && FT && isa<FunctionType>(FT->getElementType()),
- "invalid function", &N, F, FT);
- }
if (auto *Params = N.getRawTemplateParams())
visitTemplateParams(N, *Params);
if (auto *S = N.getRawDeclaration()) {
if (N.isDefinition())
Assert(N.isDistinct(), "subprogram definitions must be distinct", &N);
-
- auto *F = N.getFunction();
- if (!F)
- return;
-
- // Check that all !dbg attachments lead to back to N (or, at least, another
- // subprogram that describes the same function).
- //
- // FIXME: Check this incrementally while visiting !dbg attachments.
- // FIXME: Only check when N is the canonical subprogram for F.
- SmallPtrSet<const MDNode *, 32> Seen;
- for (auto &BB : *F)
- for (auto &I : BB) {
- // Be careful about using DILocation here since we might be dealing with
- // broken code (this is the Verifier after all).
- DILocation *DL =
- dyn_cast_or_null<DILocation>(I.getDebugLoc().getAsMDNode());
- if (!DL)
- continue;
- if (!Seen.insert(DL).second)
- continue;
-
- DILocalScope *Scope = DL->getInlinedAtScope();
- if (Scope && !Seen.insert(Scope).second)
- continue;
-
- DISubprogram *SP = Scope ? Scope->getSubprogram() : nullptr;
- if (SP && !Seen.insert(SP).second)
- continue;
-
- // FIXME: Once N is canonical, check "SP == &N".
- Assert(SP->describes(F),
- "!dbg attachment points at wrong subprogram for function", &N, F,
- &I, DL, Scope, SP);
- }
}
void Verifier::visitDILexicalBlockBase(const DILexicalBlockBase &N) {
I->getKindAsEnum() == Attribute::OptimizeNone ||
I->getKindAsEnum() == Attribute::JumpTable ||
I->getKindAsEnum() == Attribute::Convergent ||
- I->getKindAsEnum() == Attribute::ArgMemOnly) {
+ I->getKindAsEnum() == Attribute::ArgMemOnly ||
+ I->getKindAsEnum() == Attribute::NoRecurse) {
if (!isFunction) {
CheckFailed("Attribute '" + I->getAsString() +
"' only applies to functions!", V);
assert(F.hasMetadata() != MDs.empty() && "Bit out-of-sync");
VerifyFunctionMetadata(MDs);
+ // Check validity of the personality function
+ if (F.hasPersonalityFn()) {
+ auto *Per = dyn_cast<Function>(F.getPersonalityFn()->stripPointerCasts());
+ if (Per)
+ Assert(Per->getParent() == F.getParent(),
+ "Referencing personality function in another module!",
+ &F, F.getParent(), Per, Per->getParent());
+ }
+
if (F.isMaterializable()) {
// Function has a body somewhere we can't see.
Assert(MDs.empty(), "unmaterialized function cannot have metadata", &F,
(F.isDeclaration() && F.hasExternalLinkage()) ||
F.hasAvailableExternallyLinkage(),
"Function is marked as dllimport, but not external.", &F);
+
+ auto *N = F.getSubprogram();
+ if (!N)
+ return;
+
+ // Check that all !dbg attachments lead to back to N (or, at least, another
+ // subprogram that describes the same function).
+ //
+ // FIXME: Check this incrementally while visiting !dbg attachments.
+ // FIXME: Only check when N is the canonical subprogram for F.
+ SmallPtrSet<const MDNode *, 32> Seen;
+ for (auto &BB : F)
+ for (auto &I : BB) {
+ // Be careful about using DILocation here since we might be dealing with
+ // broken code (this is the Verifier after all).
+ DILocation *DL =
+ dyn_cast_or_null<DILocation>(I.getDebugLoc().getAsMDNode());
+ if (!DL)
+ continue;
+ if (!Seen.insert(DL).second)
+ continue;
+
+ DILocalScope *Scope = DL->getInlinedAtScope();
+ if (Scope && !Seen.insert(Scope).second)
+ continue;
+
+ DISubprogram *SP = Scope ? Scope->getSubprogram() : nullptr;
+
+ // Scope and SP could be the same MDNode and we don't want to skip
+ // validation in that case
+ if (SP && ((Scope != SP) && !Seen.insert(SP).second))
+ continue;
+
+ // FIXME: Once N is canonical, check "SP == &N".
+ Assert(SP->describes(&F),
+ "!dbg attachment points at wrong subprogram for function", N, &F,
+ &I, DL, Scope, SP);
+ }
}
// verifyBasicBlock - Verify that a basic block is well formed...
if (Intrinsic::ID ID = (Intrinsic::ID)F->getIntrinsicID())
visitIntrinsicCallSite(ID, CS);
+ // Verify that a callsite has at most one "deopt" operand bundle.
+ bool FoundDeoptBundle = false;
+ for (unsigned i = 0, e = CS.getNumOperandBundles(); i < e; ++i) {
+ if (CS.getOperandBundleAt(i).getTagID() == LLVMContext::OB_deopt) {
+ Assert(!FoundDeoptBundle, "Multiple deopt operand bundles", I);
+ FoundDeoptBundle = true;
+ }
+ }
+
visitInstruction(*I);
}
"Instruction does not dominate all uses!", Op, &I);
}
+void Verifier::visitDereferenceableMetadata(Instruction& I, MDNode* MD) {
+ Assert(I.getType()->isPointerTy(), "dereferenceable, dereferenceable_or_null "
+ "apply only to pointer types", &I);
+ Assert(isa<LoadInst>(I),
+ "dereferenceable, dereferenceable_or_null apply only to load"
+ " instructions, use attributes for calls or invokes", &I);
+ Assert(MD->getNumOperands() == 1, "dereferenceable, dereferenceable_or_null "
+ "take one operand!", &I);
+ ConstantInt *CI = mdconst::dyn_extract<ConstantInt>(MD->getOperand(0));
+ Assert(CI && CI->getType()->isIntegerTy(64), "dereferenceable, "
+ "dereferenceable_or_null metadata value must be an i64!", &I);
+}
+
/// verifyInstruction - Verify that an instruction is well formed.
///
void Verifier::visitInstruction(Instruction &I) {
" donothing or patchpoint",
&I);
Assert(F->getParent() == M, "Referencing function in another module!",
- &I);
+ &I, M, F, F->getParent());
} else if (BasicBlock *OpBB = dyn_cast<BasicBlock>(I.getOperand(i))) {
Assert(OpBB->getParent() == BB->getParent(),
"Referring to a basic block in another function!", &I);
Assert(OpArg->getParent() == BB->getParent(),
"Referring to an argument in another function!", &I);
} else if (GlobalValue *GV = dyn_cast<GlobalValue>(I.getOperand(i))) {
- Assert(GV->getParent() == M, "Referencing global in another module!", &I);
+ Assert(GV->getParent() == M, "Referencing global in another module!", &I, M, GV, GV->getParent());
} else if (isa<Instruction>(I.getOperand(i))) {
verifyDominatesUse(I, i);
} else if (isa<InlineAsm>(I.getOperand(i))) {
&I);
}
+ if (MDNode *MD = I.getMetadata(LLVMContext::MD_dereferenceable))
+ visitDereferenceableMetadata(I, MD);
+
+ if (MDNode *MD = I.getMetadata(LLVMContext::MD_dereferenceable_or_null))
+ visitDereferenceableMetadata(I, MD);
+
+ if (MDNode *AlignMD = I.getMetadata(LLVMContext::MD_align)) {
+ Assert(I.getType()->isPointerTy(), "align applies only to pointer types",
+ &I);
+ Assert(isa<LoadInst>(I), "align applies only to load instructions, "
+ "use attributes for calls or invokes", &I);
+ Assert(AlignMD->getNumOperands() == 1, "align takes one operand!", &I);
+ ConstantInt *CI = mdconst::dyn_extract<ConstantInt>(AlignMD->getOperand(0));
+ Assert(CI && CI->getType()->isIntegerTy(64),
+ "align metadata value must be an i64!", &I);
+ uint64_t Align = CI->getZExtValue();
+ Assert(isPowerOf2_64(Align),
+ "align metadata value must be a power of 2!", &I);
+ Assert(Align <= Value::MaximumAlignment,
+ "alignment is larger that implementation defined limit", &I);
+ }
+
if (MDNode *N = I.getDebugLoc().getAsMDNode()) {
Assert(isa<DILocation>(N), "invalid !dbg metadata attachment", &I, N);
visitMDNode(*N);
projects / oota-llvm.git / blobdiff