================
@@ -2135,6 +2135,11 @@ bool
ConstantPtrAuth::hasSpecialAddressDiscriminator(uint64_t Value) const {
bool ConstantPtrAuth::isKnownCompatibleWith(const Value *Key,
const Value *Discriminator,
const DataLayout &DL) const {
+ // This function may only be validly called to analyze a ptrauth operation
with
+ // no deactivation symbol, so if we have one it isn't compatible.
+ if (!getDeactivationSymbol()->isNullValue())
----------------
ojhunt wrote:
But they would be compatible if they have the _same_ deactivation symbol
wouldn't they? It seems reasonable to just compare the symbol - if there's a
mismatch in "present vs not present" or the relevant symbol they're compatible
aren't they?
You'd just need to pass in the deactivation symbol for the other scheme?
https://github.com/llvm/llvm-project/pull/133537
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