Making an exception variant can cause a non-dependent function type to
become dependent (since c++17 eh-specs are part of the type). The
same is (possibly?) true for adding a late return type. Fixed thusly.
My upcoming local extern-decl changes have a test case that covers
this (which was how I found it).
gcc/cp/
* tree.c (build_cp_fntype_variant): Clear
TYPE_DEPENDENT_P_VALID if necessary.
nathan
--
Nathan Sidwell
diff --git i/gcc/cp/tree.c w/gcc/cp/tree.c
index 8b7c6798ee9..074fa0c025e 100644
--- i/gcc/cp/tree.c
+++ w/gcc/cp/tree.c
@@ -2638,6 +2638,9 @@ build_cp_fntype_variant (tree type, cp_ref_qualifier rqual,
/* Need to build a new variant. */
v = build_variant_type_copy (type);
+ if (!TYPE_DEPENDENT_P (v))
+ /* We no longer know that it's not type-dependent. */
+ TYPE_DEPENDENT_P_VALID (v) = false;
TYPE_RAISES_EXCEPTIONS (v) = raises;
TYPE_HAS_LATE_RETURN_TYPE (v) = late;
switch (rqual)
