------- Comment #1 from rguenth at gcc dot gnu dot org 2010-07-04 14:38 -------
Confirmed.
The value-expr is odd:
;; Function virtual Halfedge_handle Ovl_visitor::insert_at_vertices() (null)
;; enabled by -tree-original
{
struct Halfedge_handle res [value-expr: <retval>];
struct Halfedge_handle he;
(void) 0;
struct Halfedge_handle he;
<<cleanup_point <<< Unknown tree: expr_stmt
(void) (he = TARGET_EXPR <D.1722, <retval>>) >>>
>>;
<<cleanup_point return <retval>>>;
}
so are assignments from <retval> anyway. Because <retval> has DECL_IGNORED_P
set we try to
/* Try to alleviate the effects of the gimplification creating artificial
temporaries (see for example is_gimple_reg_rhs) on the debug info. */
if (!gimplify_ctxp->into_ssa
&& DECL_P (*from_p)
&& DECL_IGNORED_P (*from_p)
&& DECL_P (*to_p)
&& !DECL_IGNORED_P (*to_p))
{
if (!DECL_NAME (*from_p) && DECL_NAME (*to_p))
DECL_NAME (*from_p)
= create_tmp_var_name (IDENTIFIER_POINTER (DECL_NAME (*to_p)));
DECL_DEBUG_EXPR_IS_FROM (*from_p) = 1;
SET_DECL_DEBUG_EXPR (*from_p, *to_p);
which requires a VAR_DECL as *from_p.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2010-07-04 14:38:16
date| |
Summary|ICE: tree check: expected |[4.6 Regression] ICE: tree
|var_decl, have result_decl |check: expected var_decl,
|in gimplify_modify_expr |have result_decl in
| |gimplify_modify_expr
Target Milestone|--- |4.6.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44808
