================
@@ -165,6 +166,88 @@ CGPointerAuthInfo
CodeGenModule::getPointerAuthInfoForType(QualType T) {
return ::getPointerAuthInfoForType(*this, T);
}
+static bool isZeroConstant(llvm::Value *value) {
+ if (auto ci = dyn_cast<llvm::ConstantInt>(value))
+ return ci->isZero();
+ return false;
+}
+
+static bool equalAuthPolicies(const CGPointerAuthInfo &left,
+ const CGPointerAuthInfo &right) {
+ if (left.isSigned() != right.isSigned())
+ return false;
+ assert(left.isSigned() && right.isSigned() &&
+ "should only be called with non-null auth policies");
----------------
atrosinenko wrote:
Maybe something like "Both pointers should have non-null auth policies" would
be better: implying current point in code instead of function call (as from the
above check, null auth policies are OK provided they are **both** null). Or
maybe this description is correct and the above check is not actually needed
(this seems consistent with how this function is called in this PR).
https://github.com/llvm/llvm-project/pull/98847
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