? plus_constant (virtual_incoming_args_rtx, 6 * UNITS_PER_WORD)
: plus_constant (virtual_incoming_args_rtx, - (6 * UNITS_PER_WORD)));
+ addr = force_operand (addr, NULL_RTX);
+
/* Allocate the va_list constructor */
block = assign_stack_local (BLKmode, 2 * UNITS_PER_WORD, BITS_PER_WORD);
RTX_UNCHANGING_P (block) = 1;
RTX_UNCHANGING_P (XEXP (block, 0)) = 1;
- /* Store the address of the first integer register in the
- __va_base member. */
- emit_move_insn (change_address (block, Pmode, XEXP (block, 0)),
- force_operand (addr, NULL_RTX));
+ /* Store the address of the first integer register in the __base member.
+ Note that our offsets are correct for both 32- and 64-bit pointers
+ due to the alignment of the __offset field (a long). */
+
+#ifdef POINTERS_EXTEND_UNSIGNED
+ addr = convert_memory_address (ptr_mode, addr);
+#endif
+
+ emit_move_insn (change_address (block, ptr_mode, XEXP (block, 0)), addr);
/* Store the argsize as the __va_offset member. */
- emit_move_insn (change_address (block, Pmode,
+ emit_move_insn (change_address (block, ptr_mode,
plus_constant (XEXP (block, 0),
- UNITS_PER_WORD)),
+ GET_MODE_SIZE (ptr_mode))),
force_operand (argsize, NULL_RTX));
/* Return the address of the va_list constructor, but don't put it in a