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| author | Jim Wilson <wilson@redhat.com> | 2001-04-11 20:19:43 +0000 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 2001-04-11 13:19:43 -0700 |
| commit | 93dd6255c208d0fe680741183b724124455c7c19 (patch) | |
| tree | 3a111464089d720e561e8813beab895ad45f1ab2 /gcc | |
| parent | 9b7949d5ffff47d657935da2ea6ec5aa3e77f9a7 (diff) | |
| download | gcc-93dd6255c208d0fe680741183b724124455c7c19.zip gcc-93dd6255c208d0fe680741183b724124455c7c19.tar.gz gcc-93dd6255c208d0fe680741183b724124455c7c19.tar.bz2 | |
Fix PR 2520, a problem with structure parameter passing.
* config/ia64/ia64.h (FUNCTION_ARG_BOUNDARY): Return 128 if argument
requires more than 64 bits of alignment.
From-SVN: r41269
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/ia64/ia64.h | 10 |
2 files changed, 12 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 12198f2..9ff706e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2001-04-11 Jim Wilson <wilson@redhat.com> + + * config/ia64/ia64.h (FUNCTION_ARG_BOUNDARY): Return 128 if argument + requires more than 64 bits of alignment. + 2001-04-11 Neil Booth <neil@daikokuya.demon.co.uk> * cpplib.c (do_line): Sanity check iff enable checking. diff --git a/gcc/config/ia64/ia64.h b/gcc/config/ia64/ia64.h index 8acbef1..956abd0 100644 --- a/gcc/config/ia64/ia64.h +++ b/gcc/config/ia64/ia64.h @@ -1382,11 +1382,15 @@ do { \ /* If defined, a C expression that gives the alignment boundary, in bits, of an argument with the specified mode and type. */ -/* Arguments larger than 64 bits require 128 bit alignment. */ +/* Arguments with alignment larger than 8 bytes start at the next even + boundary. See ia64_function_arg. */ #define FUNCTION_ARG_BOUNDARY(MODE, TYPE) \ - (((((MODE) == BLKmode ? int_size_in_bytes (TYPE) : GET_MODE_SIZE (MODE)) \ - + UNITS_PER_WORD - 1) / UNITS_PER_WORD) > 1 ? 128 : PARM_BOUNDARY) + (((TYPE) ? (TYPE_ALIGN (TYPE) > 8 * BITS_PER_UNIT) \ + : (((((MODE) == BLKmode \ + ? int_size_in_bytes (TYPE) : GET_MODE_SIZE (MODE)) \ + + UNITS_PER_WORD - 1) / UNITS_PER_WORD) > 1)) \ + ? 128 : PARM_BOUNDARY) /* A C expression that is nonzero if REGNO is the number of a hard register in which function arguments are sometimes passed. This does *not* include |