diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/expr.c | 9 |
2 files changed, 11 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 0282381..00690e6 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2002-08-12 Hans-Peter Nilsson <hp@bitrange.com> + + * expr.c (store_expr): In condition for checking if value is + generated in TARGET, move call to expr_size last. + 2002-08-11 Neil Booth <neil@daikokuya.co.uk> * c-common.c (c_common_init): Call preprocess_file instead. @@ -4238,14 +4238,17 @@ store_expr (exp, target, want_value) || (temp != target && (side_effects_p (temp) || side_effects_p (target)))) && TREE_CODE (exp) != ERROR_MARK - /* If there's nothing to copy, don't bother. */ - && expr_size (exp) != const0_rtx && ! dont_store_target /* If store_expr stores a DECL whose DECL_RTL(exp) == TARGET, but TARGET is not valid memory reference, TEMP will differ from TARGET although it is really the same location. */ && (TREE_CODE_CLASS (TREE_CODE (exp)) != 'd' - || target != DECL_RTL_IF_SET (exp))) + || target != DECL_RTL_IF_SET (exp)) + /* If there's nothing to copy, don't bother. Don't call expr_size + unless necessary, because some front-ends (C++) expr_size-hook + aborts on objects that are not supposed to be bit-copied or + bit-initialized. */ + && expr_size (exp) != const0_rtx) { target = protect_from_queue (target, 1); if (GET_MODE (temp) != GET_MODE (target) |