-Wed Apr 24 21:35:11 2002 J"orn Rennecke <joern.rennecke@superh.com>
+Wed Apr 24 21:51:54 2002 J"orn Rennecke <joern.rennecke@superh.com>
+
+ * sh.c (sh_va_arg): If argument was passed by reference,
+ dereference the pointer.
* sh.h (PIC_OFFSET_TABLE_REGNUM): Conditionalize on flag_pic.
HOST_WIDE_INT size, rsize;
tree tmp, pptr_type_node;
rtx addr_rtx, r;
+ rtx result;
+ int pass_by_ref = MUST_PASS_IN_STACK (TYPE_MODE (type), type);
size = int_size_in_bytes (type);
rsize = (size + UNITS_PER_WORD - 1) & -UNITS_PER_WORD;
pptr_type_node = build_pointer_type (ptr_type_node);
+ if (pass_by_ref)
+ type = build_pointer_type (type);
+
if (! TARGET_SH5 && (TARGET_SH3E || TARGET_SH4) && ! TARGET_HITACHI)
{
tree f_next_o, f_next_o_limit, f_next_fp, f_next_fp_limit, f_next_stack;
/* ??? In va-sh.h, there had been code to make values larger than
size 8 indirect. This does not match the FUNCTION_ARG macros. */
- return std_expand_builtin_va_arg (valist, type);
+ result = std_expand_builtin_va_arg (valist, type);
+ if (pass_by_ref)
+ {
+#ifdef POINTERS_EXTEND_UNSIGNED
+ if (GET_MODE (addr) != Pmode)
+ addr = convert_memory_address (Pmode, result);
+#endif
+ result = gen_rtx_MEM (ptr_mode, force_reg (Pmode, result));
+ set_mem_alias_set (result, get_varargs_alias_set ());
+ }
+ /* ??? expand_builtin_va_arg will also set the alias set of the dereferenced
+ argument to the varargs alias set. */
+ return result;
}
/* Define the offset between two registers, one to be eliminated, and