diff options
Diffstat (limited to 'gcc/gimplify.c')
| -rw-r--r-- | gcc/gimplify.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/gimplify.c b/gcc/gimplify.c index a659e77..3370f44 100644 --- a/gcc/gimplify.c +++ b/gcc/gimplify.c @@ -2501,6 +2501,17 @@ gimplify_init_ctor_eval_range (tree object, tree lower, tree upper, pre_p); } +/* Return true if FDECL is accessing a field that is zero sized. */ + +static bool +zero_sized_field_decl (tree fdecl) +{ + if (TREE_CODE (fdecl) == FIELD_DECL && DECL_SIZE (fdecl) + && integer_zerop (DECL_SIZE (fdecl))) + return true; + return false; +} + /* A subroutine of gimplify_init_constructor. Generate individual MODIFY_EXPRs for a CONSTRUCTOR. OBJECT is the LHS against which the assignments should happen. LIST is the CONSTRUCTOR_ELTS of the @@ -2533,6 +2544,9 @@ gimplify_init_ctor_eval (tree object, tree list, tree *pre_p, bool cleared) so we don't have to figure out what's missing ourselves. */ gcc_assert (purpose); + if (zero_sized_field_decl (purpose)) + continue; + /* If we have a RANGE_EXPR, we have to build a loop to assign the whole range. */ if (TREE_CODE (purpose) == RANGE_EXPR) |