https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102633
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |mpolacek at gcc dot
gnu.org
--- Comment #6 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Patch:
--- a/gcc/c-family/c-gimplify.cc
+++ b/gcc/c-family/c-gimplify.cc
@@ -712,13 +712,17 @@ c_gimplify_expr (tree *expr_p, gimple_seq *pre_p
ATTRIBUTE_UNUSED,
/* This is handled mostly by gimplify.cc, but we have to deal with
not warning about int x = x; as it is a GCC extension to turn off
this warning but only if warn_init_self is zero. */
- if (VAR_P (DECL_EXPR_DECL (*expr_p))
- && !DECL_EXTERNAL (DECL_EXPR_DECL (*expr_p))
- && !TREE_STATIC (DECL_EXPR_DECL (*expr_p))
- && (DECL_INITIAL (DECL_EXPR_DECL (*expr_p)) == DECL_EXPR_DECL (*expr_p))
- && !warn_init_self)
- suppress_warning (DECL_EXPR_DECL (*expr_p), OPT_Winit_self);
- break;
+ {
+ tree &decl = DECL_EXPR_DECL (*expr_p);
+ if (VAR_P (decl)
+ && !DECL_EXTERNAL (decl)
+ && !TREE_STATIC (decl)
+ && (DECL_INITIAL (decl)
+ && tree_strip_nop_conversions (DECL_INITIAL (decl)) == decl)
+ && !warn_init_self)
+ suppress_warning (decl, OPT_Winit_self);
+ break;
+ }
case PREINCREMENT_EXPR:
case PREDECREMENT_EXPR:
