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ffi.c (ffi_prep_incoming_args_UNIX): Get floating point arguments from fp registers only for the first 8 parameter slots.

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* src/ia64/ffi.c (ffi_prep_incoming_args_UNIX): Get floating point
	arguments from fp registers only for the first 8 parameter slots.
	Don't convert a float parameter when passed in memory.

From-SVN: r79323
This commit is contained in:
Andreas Schwab 2004-03-11 14:25:44 +00:00 committed by Andreas Schwab
parent 40131a384c
commit 254ea4774b
2 changed files with 13 additions and 8 deletions
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6
libffi/ChangeLog
View File

@ -1,3 +1,9 @@
2004-03-11 Andreas Schwab <schwab@suse.de>
* src/ia64/ffi.c (ffi_prep_incoming_args_UNIX): Get floating point
arguments from fp registers only for the first 8 parameter slots.
Don't convert a float parameter when passed in memory.
2004-03-09 Hans-Peter Nilsson <hp@axis.com>
* configure: Regenerate for config/accross.m4 correction.

15
libffi/src/ia64/ffi.c
View File

@ -196,7 +196,7 @@ ffi_prep_args(struct ia64_args *stack, extended_cif *ecif, int bytes)
*fp_argp++ = *(float *)(* p_argv);
}
/* Also put it into the integer registers or memory: */
*(UINT64 *) argp = *(UINT32 *)(* p_argv);
*(UINT64 *) argp = *(UINT32 *)(* p_argv);
break;
case FFI_TYPE_DOUBLE:
@ -204,7 +204,7 @@ ffi_prep_args(struct ia64_args *stack, extended_cif *ecif, int bytes)
if (fp_argp - stack->fp_regs < 8)
*fp_argp++ = *(double *)(* p_argv);
/* Also put it into the integer registers or memory: */
*(double *) argp = *(double *)(* p_argv);
*(double *) argp = *(double *)(* p_argv);
break;
case FFI_TYPE_STRUCT:
@ -547,7 +547,7 @@ ffi_prep_incoming_args_UNIX(struct ia64_args *args, void **rvalue,
register unsigned int i;
register unsigned int avn;
register void **p_argv;
register unsigned long *argp = args -> out_regs;
register long *argp = args -> out_regs;
unsigned fp_reg_num = 0;
register ffi_type **p_arg;
@ -576,17 +576,15 @@ ffi_prep_incoming_args_UNIX(struct ia64_args *args, void **rvalue,
case FFI_TYPE_FLOAT:
z = 1;
/* Convert argument back to float in place from the saved value */
if (fp_reg_num < 8) {
if (argp - args->out_regs < 8 && fp_reg_num < 8) {
*(float *)argp = args -> fp_regs[fp_reg_num++];
} else {
*(float *)argp = *(double *)argp;
}
*p_argv = (void *)argp;
break;
case FFI_TYPE_DOUBLE:
z = 1;
if (fp_reg_num < 8) {
if (argp - args->out_regs < 8 && fp_reg_num < 8) {
*p_argv = args -> fp_regs + fp_reg_num++;
} else {
*p_argv = (void *)argp;
@ -598,7 +596,8 @@ ffi_prep_incoming_args_UNIX(struct ia64_args *args, void **rvalue,
size_t sz = (*p_arg)->size;
unsigned short element_type;
z = ((*p_arg)->size + FFI_SIZEOF_ARG - 1)/FFI_SIZEOF_ARG;
if (is_homogeneous_fp_aggregate(*p_arg, 8, &element_type)) {
if (argp - args->out_regs < 8
&& is_homogeneous_fp_aggregate(*p_arg, 8, &element_type)) {
int nelements = sz/float_type_size(element_type);
if (nelements + fp_reg_num >= 8) {
/* hard case NYI. */