diff options
Diffstat (limited to 'gcc/stor-layout.c')
| -rw-r--r-- | gcc/stor-layout.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/gcc/stor-layout.c b/gcc/stor-layout.c index 05eaf24..f657463 100644 --- a/gcc/stor-layout.c +++ b/gcc/stor-layout.c @@ -1149,7 +1149,17 @@ compute_record_mode (type) #ifdef MEMBER_TYPE_FORCES_BLK /* With some targets, eg. c4x, it is sub-optimal to access an aligned BLKmode structure as a scalar. */ - if (mode == VOIDmode && MEMBER_TYPE_FORCES_BLK (field)) + + /* On ia64-*-hpux we need to ensure that we don't change the + mode of a structure containing a single field or else we + will pass it incorrectly. Since a structure with a single + field causes mode to get set above we can't allow the + check for mode == VOIDmode in this case. Perhaps + MEMBER_TYPE_FORCES_BLK should be extended to include mode + as an argument and the check could be put in there for c4x. */ + + if ((mode == VOIDmode || FUNCTION_ARG_REG_LITTLE_ENDIAN) + && MEMBER_TYPE_FORCES_BLK (field)) return; #endif /* MEMBER_TYPE_FORCES_BLK */ } |