================
@@ -7963,6 +7967,148 @@ static Attr *getCCTypeAttr(ASTContext &Ctx, ParsedAttr
&Attr) {
llvm_unreachable("unexpected attribute kind!");
}
+ExprResult Sema::ActOnEffectExpression(Expr *CondExpr, FunctionEffectMode
&Mode,
+ bool RequireConstexpr) {
+ // see checkFunctionConditionAttr, Sema::CheckCXXBooleanCondition
+ if (RequireConstexpr || !CondExpr->isTypeDependent()) {
+ ExprResult E = PerformContextuallyConvertToBool(CondExpr);
+ if (E.isInvalid())
----------------
Sirraide wrote:
```suggestion
if (!E.isUsable())
```
`!isInvalid()` doesn’t mean you have an expression, unfortunately; the
expression in the result can be null; `isUsable()` checks for that too.
https://github.com/llvm/llvm-project/pull/84983
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