/// processModule - Process entire module and collect debug info.
void DebugInfoFinder::processModule(Module &M) {
MetadataContext &TheMetadata = M.getContext().getMetadata();
unsigned MDDbgKind = TheMetadata.getMDKind("dbg");
for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
for (Function::iterator FI = (*I).begin(), FE = (*I).end(); FI != FE; ++FI)
for (BasicBlock::iterator BI = (*FI).begin(), BE = (*FI).end(); BI != BE;
++BI) {
if (DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(BI))
processDeclare(DDI);
else if (MDDbgKind)
if (MDNode *L = TheMetadata.getMD(MDDbgKind, BI))
processLocation(DILocation(L));
}
NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.gv");
if (!NMD)
return;
for (unsigned i = 0, e = NMD->getNumElements(); i != e; ++i) {
DIGlobalVariable DIG(cast<MDNode>(NMD->getElement(i)));
if (addGlobalVariable(DIG)) {
addCompileUnit(DIG.getCompileUnit());
processType(DIG.getType());
}
}
}
Value *findDbgGlobalDeclare(GlobalVariable *V) {
const Module *M = V->getParent();
NamedMDNode *NMD = M->getNamedMetadata("llvm.dbg.gv");
if (!NMD)
return 0;
for (unsigned i = 0, e = NMD->getNumElements(); i != e; ++i) {
DIGlobalVariable DIG(cast_or_null<MDNode>(NMD->getElement(i)));
if (DIG.isNull())
continue;
if (DIG.getGlobal() == V)
return DIG.getNode();
}
return 0;
}
