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Add error check on return value of build_co_await

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gcc/cp/ChangeLog
	* coroutines.cc (finish_co_await_expr): Add error check on return
	value of build_co_await.
	(finish_co_yield_expr): Ditto.
This commit is contained in:
JunMa 2020-01-21 10:29:34 +08:00
parent c75199b716
commit 6ac6529e15
2 changed files with 16 additions and 5 deletions
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6
gcc/cp/ChangeLog
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@ -1,3 +1,9 @@
2020-01-22 Jun Ma <JunMa@linux.alibaba.com>
* coroutines.cc (finish_co_await_expr): Add error check on return
value of build_co_await.
(finish_co_yield_expr,): Ditto.
2020-01-22 Jun Ma <JunMa@linux.alibaba.com>
* coroutines.cc (lookup_awaitable_member): Lookup an awaitable member.

15
gcc/cp/coroutines.cc
View file

@ -819,8 +819,11 @@ finish_co_await_expr (location_t kw, tree expr)
/* Now we want to build co_await a. */
tree op = build_co_await (kw, a, CO_AWAIT_SUSPEND_POINT);
TREE_SIDE_EFFECTS (op) = 1;
SET_EXPR_LOCATION (op, kw);
if (op != error_mark_node)
{
TREE_SIDE_EFFECTS (op) = 1;
SET_EXPR_LOCATION (op, kw);
}
return op;
}
@ -885,9 +888,11 @@ finish_co_yield_expr (location_t kw, tree expr)
promise transform_await(). */
tree op = build_co_await (kw, yield_call, CO_YIELD_SUSPEND_POINT);
op = build2_loc (kw, CO_YIELD_EXPR, TREE_TYPE (op), expr, op);
TREE_SIDE_EFFECTS (op) = 1;
if (op != error_mark_node)
{
op = build2_loc (kw, CO_YIELD_EXPR, TREE_TYPE (op), expr, op);
TREE_SIDE_EFFECTS (op) = 1;
}
return op;
}