bool DISubprogram::Verify() const {
auto *N = getRaw();
if (!N)
return false;
if (!isScopeRef(N->getScope()))
return false;
if (auto *Op = N->getType())
if (!isa<MDNode>(Op))
return false;
if (!isTypeRef(getContainingType()))
return false;
if (isLValueReference() && isRValueReference())
return false;
// If a DISubprogram has an llvm::Function*, then scope chains from all
// instructions within the function should lead to this DISubprogram.
if (auto *F = getFunction()) {
for (auto &BB : *F) {
for (auto &I : BB) {
DebugLoc DL = I.getDebugLoc();
if (DL.isUnknown())
continue;
MDNode *Scope = nullptr;
MDNode *IA = nullptr;
// walk the inlined-at scopes
while ((IA = DL.getInlinedAt()))
DL = DebugLoc::getFromDILocation(IA);
DL.getScopeAndInlinedAt(Scope, IA);
if (!Scope)
return false;
assert(!IA);
while (!DIDescriptor(Scope).isSubprogram()) {
DILexicalBlockFile D(Scope);
Scope = D.isLexicalBlockFile()
? D.getScope()
: DebugLoc::getFromDILexicalBlock(Scope).getScope();
if (!Scope)
return false;
}
if (!DISubprogram(Scope).describes(F))
return false;
}
}
}
return true;
}
bool DISubprogram::Verify() const {
if (!isSubprogram())
return false;
// Make sure context @ field 2 is a ScopeRef and type @ field 3 is a MDNode.
if (!fieldIsScopeRef(DbgNode, 2))
return false;
if (!fieldIsMDNode(DbgNode, 3))
return false;
// Containing type @ field 4.
if (!fieldIsTypeRef(DbgNode, 4))
return false;
// A subprogram can't be both & and &&.
if (isLValueReference() && isRValueReference())
return false;
// If a DISubprogram has an llvm::Function*, then scope chains from all
// instructions within the function should lead to this DISubprogram.
if (auto *F = getFunction()) {
for (auto &BB : *F) {
for (auto &I : BB) {
DebugLoc DL = I.getDebugLoc();
if (DL.isUnknown())
continue;
MDNode *Scope = nullptr;
MDNode *IA = nullptr;
// walk the inlined-at scopes
while ((IA = DL.getInlinedAt()))
DL = DebugLoc::getFromDILocation(IA);
DL.getScopeAndInlinedAt(Scope, IA);
if (!Scope)
return false;
assert(!IA);
while (!DIDescriptor(Scope).isSubprogram()) {
DILexicalBlockFile D(Scope);
Scope = D.isLexicalBlockFile()
? D.getScope()
: DebugLoc::getFromDILexicalBlock(Scope).getScope();
if (!Scope)
return false;
}
if (!DISubprogram(Scope).describes(F))
return false;
}
}
}
return DbgNode->getNumOperands() == 9 && getNumHeaderFields() == 12;
}
