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Adjust structure parameter passing to match ABI change.

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* config/ia64/ia64.c (ia64_function_arg): Use alignment not size
	when computing offset.

From-SVN: r35401
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Jim Wilson 2000-08-01 03:22:53 +00:00 committed by Jim Wilson
parent 003661ddec
commit f9f45ccb5f
2 changed files with 13 additions and 2 deletions
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gcc/ChangeLog
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@ -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.

10
gcc/config/ia64/ia64.c
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@ -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. */