The stage 4 patch limited direct propagation of dependent type to capture
field/proxy to the "current instantiation", but many more types should be
suitable as well.
Tested x86_64-pc-linux-gnu, applying to trunk.
gcc/cp/ChangeLog:
* lambda.cc (type_deducible_expression_p): Allow more types.
---
gcc/cp/lambda.cc | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/gcc/cp/lambda.cc b/gcc/cp/lambda.cc
index 65579edc316..10834d6b143 100644
--- a/gcc/cp/lambda.cc
+++ b/gcc/cp/lambda.cc
@@ -195,10 +195,9 @@ type_deducible_expression_p (tree expr)
|| TREE_CODE (expr) == EXPR_PACK_EXPANSION)
return false;
tree t = non_reference (TREE_TYPE (expr));
- if (!t) return false;
- while (TREE_CODE (t) == POINTER_TYPE)
- t = TREE_TYPE (t);
- return currently_open_class (t);
+ return (t && TREE_CODE (t) != TYPE_PACK_EXPANSION
+ && !WILDCARD_TYPE_P (t) && !LAMBDA_TYPE_P (t)
+ && !type_uses_auto (t));
}
/* Returns the type to use for the FIELD_DECL corresponding to the
base-commit: 8189838d823ea65e560c573d38a65edc12f5c2e3
--
2.27.0
