================
@@ -19,20 +19,38 @@ namespace llvm {
// Visitor class that finds all indirect call.
struct PGOIndirectCallVisitor : public InstVisitor<PGOIndirectCallVisitor> {
std::vector<CallBase *> IndirectCalls;
+ std::vector<Instruction *> VTableAddrs;
PGOIndirectCallVisitor() = default;
void visitCallBase(CallBase &Call) {
if (Call.isIndirectCall())
- IndirectCalls.push_back(&Call);
+ if (Call.isIndirectCall()) {
+ IndirectCalls.push_back(&Call);
+
+ LoadInst *LI = dyn_cast<LoadInst>(Call.getCalledOperand());
----------------
modiking wrote:
True, detection would need to be done in Clang. Maybe a better way to think
about/document this is that this particular feature of IRPGO is enabled when
`-fwhole-program-vtables` is enabled and otherwise disabled. The backend flag
can still exist but more as an opt-out option.
https://github.com/llvm/llvm-project/pull/66825
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