+2003-08-06 Alan Modra <amodra@bigpond.net.au>
+
+ * calls.c (load_register_parameters): Arrange for call_fusage to
+ report the whole register as used when shifting to the msb.
+
2003-08-05 Roger Sayle <roger@eyesopen.com>
* builtins.c (expand_builtin): When not optimizing, call the library
&& (args[i].locate.where_pad
== (BYTES_BIG_ENDIAN ? upward : downward)))
{
- rtx ri = gen_rtx_REG (word_mode, REGNO (reg));
rtx x;
int shift = (UNITS_PER_WORD - size) * BITS_PER_UNIT;
- x = expand_binop (word_mode, ashl_optab, ri,
- GEN_INT (shift), ri, 1, OPTAB_WIDEN);
- if (x != ri)
- emit_move_insn (ri, x);
+
+ /* Assigning REG here rather than a temp makes CALL_FUSAGE
+ report the whole reg as used. Strictly speaking, the
+ call only uses SIZE bytes at the msb end, but it doesn't
+ seem worth generating rtl to say that. */
+ reg = gen_rtx_REG (word_mode, REGNO (reg));
+ x = expand_binop (word_mode, ashl_optab, reg,
+ GEN_INT (shift), reg, 1, OPTAB_WIDEN);
+ if (x != reg)
+ emit_move_insn (reg, x);
}
#endif
}