diff options
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 6d78f84..a212611 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -4485,7 +4485,12 @@ function_arg_padding (enum machine_mode mode, tree type) of an argument with the specified mode and type. If it is not defined, PARM_BOUNDARY is used for all arguments. - V.4 wants long longs to be double word aligned. + V.4 wants long longs and doubles to be double word aligned. Just + testing the mode size is a boneheaded way to do this as it means + that other types such as complex int are also double word aligned. + However, we're stuck with this because changing the ABI might break + existing library interfaces. + Doubleword align SPE vectors. Quadword align Altivec vectors. Quadword align large synthetic vector types. */ @@ -4493,7 +4498,11 @@ function_arg_padding (enum machine_mode mode, tree type) int function_arg_boundary (enum machine_mode mode, tree type) { - if (DEFAULT_ABI == ABI_V4 && GET_MODE_SIZE (mode) == 8) + if (DEFAULT_ABI == ABI_V4 + && (GET_MODE_SIZE (mode) == 8 + || (TARGET_HARD_FLOAT + && TARGET_FPRS + && mode == TFmode))) return 64; else if (SPE_VECTOR_MODE (mode) || (type && TREE_CODE (type) == VECTOR_TYPE |