diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/ia64/ia64.c | 10 |
2 files changed, 13 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f2f83e8..7c9d309 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2000-07-31 Jim Wilson <wilson@cygnus.com> + + * config/ia64/ia64.c (ia64_function_arg): Use alignment not size + when computing offset. + Mon Jul 31 20:35:50 2000 Denis Chertykov <denisc@overta.ru> * genpeep.c (main): Handle DEFINE_PEEPHOLE2. diff --git a/gcc/config/ia64/ia64.c b/gcc/config/ia64/ia64.c index 7153620..7c015f4 100644 --- a/gcc/config/ia64/ia64.c +++ b/gcc/config/ia64/ia64.c @@ -1542,8 +1542,14 @@ ia64_function_arg (cum, mode, type, named, incoming) int offset = 0; enum machine_mode hfa_mode = VOIDmode; - /* Arguments larger than 8 bytes start at the next even boundary. */ - if (words > 1 && (cum->words & 1)) + /* Integer and float arguments larger than 8 bytes start at the next even + boundary. Aggregates larger than 8 bytes start at the next even boundary + if the aggregate has 16 byte alignment. */ + /* ??? The ABI does not specify how to handle aggregates with alignment from + 9 to 15 bytes, or greater than 16. We handle them all as if they had + 16 byte alignment. Such aggregates can occur only if gcc extensions are + used. */ + if ((TYPE_ALIGN (type) > 8 * BITS_PER_UNIT) && (cum->words & 1)) offset = 1; /* If all argument slots are used, then it must go on the stack. */ |