/// findLexicalScope - Find lexical scope, either regular or inlined, for the
/// given DebugLoc. Return NULL if not found.
LexicalScope *LexicalScopes::findLexicalScope(DebugLoc DL) {
MDNode *Scope = NULL;
MDNode *IA = NULL;
DL.getScopeAndInlinedAt(Scope, IA, MF->getFunction()->getContext());
if (!Scope) return NULL;
if (IA)
return InlinedLexicalScopeMap.lookup(DebugLoc::getFromDILocation(IA));
return LexicalScopeMap.lookup(DL.getScope(Scope->getContext()));
}
void Instruction::swapProfMetadata() {
MDNode *ProfileData = getMetadata(LLVMContext::MD_prof);
if (!ProfileData || ProfileData->getNumOperands() != 3 ||
!isa<MDString>(ProfileData->getOperand(0)))
return;
MDString *MDName = cast<MDString>(ProfileData->getOperand(0));
if (MDName->getString() != "branch_weights")
return;
// The first operand is the name. Fetch them backwards and build a new one.
Metadata *Ops[] = {ProfileData->getOperand(0), ProfileData->getOperand(2),
ProfileData->getOperand(1)};
setMetadata(LLVMContext::MD_prof,
MDNode::get(ProfileData->getContext(), Ops));
}
