diff options
Diffstat (limited to 'gcc/stor-layout.c')
| -rw-r--r-- | gcc/stor-layout.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/stor-layout.c b/gcc/stor-layout.c index 109264b..1c65490 100644 --- a/gcc/stor-layout.c +++ b/gcc/stor-layout.c @@ -2390,6 +2390,27 @@ layout_type (tree type) gcc_assert (!TYPE_ALIAS_SET_KNOWN_P (type)); } +/* Return the least alignment required for type TYPE. */ + +unsigned int +min_align_of_type (tree type) +{ + unsigned int align = TYPE_ALIGN (type); + align = MIN (align, BIGGEST_ALIGNMENT); +#ifdef BIGGEST_FIELD_ALIGNMENT + align = MIN (align, BIGGEST_FIELD_ALIGNMENT); +#endif + unsigned int field_align = align; +#ifdef ADJUST_FIELD_ALIGN + tree field = build_decl (UNKNOWN_LOCATION, FIELD_DECL, NULL_TREE, + type); + field_align = ADJUST_FIELD_ALIGN (field, field_align); + ggc_free (field); +#endif + align = MIN (align, field_align); + return align / BITS_PER_UNIT; +} + /* Vector types need to re-check the target flags each time we report the machine mode. We need to do this because attribute target can change the result of vector_mode_supported_p and have_regs_of_mode |