diff options
Diffstat (limited to 'gcc/stor-layout.c')
| -rw-r--r-- | gcc/stor-layout.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/stor-layout.c b/gcc/stor-layout.c index 0ec818d..31d8bec 100644 --- a/gcc/stor-layout.c +++ b/gcc/stor-layout.c @@ -1367,14 +1367,15 @@ compute_record_mode (tree type) #endif /* MEMBER_TYPE_FORCES_BLK */ } - TYPE_MODE (type) = mode_for_size_tree (TYPE_SIZE (type), MODE_INT, 1); - /* If we only have one real field; use its mode if that mode's size matches the type's size. This only applies to RECORD_TYPE. This does not apply to unions. */ if (TREE_CODE (type) == RECORD_TYPE && mode != VOIDmode - && GET_MODE_SIZE (mode) == GET_MODE_SIZE (TYPE_MODE (type))) + && host_integerp (TYPE_SIZE (type), 1) + && GET_MODE_BITSIZE (mode) == TREE_INT_CST_LOW (TYPE_SIZE (type))) TYPE_MODE (type) = mode; + else + TYPE_MODE (type) = mode_for_size_tree (TYPE_SIZE (type), MODE_INT, 1); /* If structure's known alignment is less than what the scalar mode would need, and it matters, then stick with BLKmode. */ |