+Wed Feb 24 17:47:28 1999 Jim Wilson <wilson@cygnus.com>
+
+ * dwarf2out.c (add_location_or_const_value_attribute): Add big
+ endian correction for parms passed in regs but living on the stack.
+
Wed Feb 24 14:03:54 1999 Jeffrey A Law (law@cygnus.com)
* calls.c (compute_argument_block_size): New function, extracted from
&& TYPE_SIZE (declared_type) <= TYPE_SIZE (passed_type))
rtl = DECL_INCOMING_RTL (decl);
}
+
+ /* If the parm was passed in registers, but lives on the stack, then
+ make a big endian correction if the mode of the type of the
+ parameter is not the same as the mode of the rtl. */
+ /* ??? This is the same series of checks that are made in dbxout.c before
+ we reach the big endian correction code there. It isn't clear if all
+ of these checks are necessary here, but keeping them all is the safe
+ thing to do. */
+ else if (GET_CODE (rtl) == MEM
+ && XEXP (rtl, 0) != const0_rtx
+ && ! CONSTANT_P (XEXP (rtl, 0))
+ /* Not passed in memory. */
+ && GET_CODE (DECL_INCOMING_RTL (decl)) != MEM
+ /* Not passed by invisible reference. */
+ && (GET_CODE (XEXP (rtl, 0)) != REG
+ || REGNO (XEXP (rtl, 0)) == HARD_FRAME_POINTER_REGNUM
+ || REGNO (XEXP (rtl, 0)) == STACK_POINTER_REGNUM
+#if ARG_POINTER_REGNUM != HARD_FRAME_POINTER_REGNUM
+ || REGNO (XEXP (rtl, 0)) == ARG_POINTER_REGNUM
+#endif
+ )
+ /* Big endian correction check. */
+ && BYTES_BIG_ENDIAN
+ && TYPE_MODE (TREE_TYPE (decl)) != GET_MODE (rtl)
+ && (GET_MODE_SIZE (TYPE_MODE (TREE_TYPE (decl)))
+ < UNITS_PER_WORD))
+ {
+ int offset = (UNITS_PER_WORD
+ - GET_MODE_SIZE (TYPE_MODE (TREE_TYPE (decl))));
+ rtl = gen_rtx_MEM (TYPE_MODE (TREE_TYPE (decl)),
+ plus_constant (XEXP (rtl, 0), offset));
+ }
}
if (rtl == NULL_RTX)