https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105353
--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
My fix is just
--- a/gcc/cp/typeck.cc
+++ b/gcc/cp/typeck.cc
@@ -6315,7 +6315,7 @@ build_x_shufflevector (location_t loc, vec<tree, va_gc>
*args,
if (processing_template_decl)
{
for (unsigned i = 0; i < args->length (); ++i)
- if (type_dependent_expression_p ((*args)[i]))
+ if (instantiation_dependent_expression_p ((*args)[i]))
{
tree exp = build_min_nt_call_vec (NULL, args);
CALL_EXPR_IFN (exp) = IFN_SHUFFLEVECTOR;
so what we leave the IFN_SHUFFLEVECTOR to be processed when instantiating.
fold_non_dependent_expr wouldn't know what to substitute T with yet.
