diff options
Diffstat (limited to 'gcc/config/mips/abi64.h')
| -rw-r--r-- | gcc/config/mips/abi64.h | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/gcc/config/mips/abi64.h b/gcc/config/mips/abi64.h index 95e7d82b9fc..b260d6ffc2e 100644 --- a/gcc/config/mips/abi64.h +++ b/gcc/config/mips/abi64.h @@ -1,5 +1,5 @@ /* Definitions of target machine for GNU compiler. 64 bit ABI support. - Copyright (C) 1994, 1995, 1996, 1998, 1999 Free Software Foundation, Inc. + Copyright (C) 1994, 1995, 1996, 1998, 1999, 2001 Free Software Foundation, Inc. This file is part of GNU CC. @@ -86,12 +86,17 @@ Boston, MA 02111-1307, USA. */ || GET_MODE_CLASS (MODE) == MODE_INT))) \ ? downward : upward)) +/* Under the old (i.e., 32 and O64 ABIs) all BLKmode objects are + returned in memory. Under the new (N32 and 64-bit MIPS ABIs) small + structures are returned in a register. Objects with varying size + must still be returned in memory, of course. */ #undef RETURN_IN_MEMORY -#define RETURN_IN_MEMORY(TYPE) \ - ((mips_abi == ABI_32 || mips_abi == ABI_O64) \ - ? TYPE_MODE (TYPE) == BLKmode \ - : (int_size_in_bytes (TYPE) \ - > (2 * UNITS_PER_WORD))) +#define RETURN_IN_MEMORY(TYPE) \ + ((mips_abi == ABI_32 || mips_abi == ABI_O64) \ + ? TYPE_MODE (TYPE) == BLKmode \ + : ((int_size_in_bytes (TYPE) \ + > (2 * UNITS_PER_WORD)) \ + || (int_size_in_bytes (TYPE) == -1))) #ifdef ANSI_PROTOTYPES union tree_node; |