* 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.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@79323 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/libffi/ChangeLog b/libffi/ChangeLog
index 2d3a1e8..4b966cd 100644 (file)
--- a/libffi/ChangeLog
+++ b/libffi/ChangeLog
@@ -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.

diff --git a/libffi/src/ia64/ffi.c b/libffi/src/ia64/ffi.c
index c846f6e..1dc27db 100644 (file)
--- a/libffi/src/ia64/ffi.c
+++ b/libffi/src/ia64/ffi.c
@@ -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.     */