Even if the operand of -> has dependent type, if it's a pointer we know
that the result will be the target type of that pointer. This should avoid
some unnecessary TYPEOF_EXPR when looking up a name after ->.
Tested x86_64-pc-linux-gnu, applying to trunk.
gcc/cp/ChangeLog:
* typeck2.c (build_x_arrow): Do set TREE_TYPE when operand is
a dependent pointer.
---
gcc/cp/typeck2.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/gcc/cp/typeck2.c b/gcc/cp/typeck2.c
index dcfdff2f905..5e2c23c063c 100644
--- a/gcc/cp/typeck2.c
+++ b/gcc/cp/typeck2.c
@@ -1913,11 +1913,17 @@ build_x_arrow (location_t loc, tree expr,
tsubst_flags_t complain)
if (processing_template_decl)
{
- if (type && TYPE_PTR_P (type)
- && !dependent_scope_p (TREE_TYPE (type)))
+ tree ttype = NULL_TREE;
+ if (type && TYPE_PTR_P (type))
+ ttype = TREE_TYPE (type);
+ if (ttype && !dependent_scope_p (ttype))
/* Pointer to current instantiation, don't treat as dependent. */;
else if (type_dependent_expression_p (expr))
- return build_min_nt_loc (loc, ARROW_EXPR, expr);
+ {
+ expr = build_min_nt_loc (loc, ARROW_EXPR, expr);
+ TREE_TYPE (expr) = ttype;
+ return expr;
+ }
expr = build_non_dependent_expr (expr);
}
base-commit: ee914ec4f811243ad72aceea4748687c74f38bc6
--
2.27.0
