+Tue Jul 21 08:55:09 1998 Richard Henderson <rth@cygnus.com>
+
+ * flow.c (regno_uninitialized): Fixed regs are never uninitialized.
+
Tue Jul 21 00:31:01 1998 Jeffrey A Law (law@cygnus.com)
* gcc.c (do_spec): Call "error" not "warning".
return 1;
}
-/* Return 1 if register REGNO was used before it was set.
- In other words, if it is live at function entry.
- Don't count global register variables or variables in registers
- that can be used for function arg passing, though. */
+/* Return 1 if register REGNO was used before it was set, i.e. if it is
+ live at function entry. Don't count global register variables, variables
+ in registers that can be used for function arg passing, or variables in
+ fixed hard registers. */
int
regno_uninitialized (regno)
{
if (n_basic_blocks == 0
|| (regno < FIRST_PSEUDO_REGISTER
- && (global_regs[regno] || FUNCTION_ARG_REGNO_P (regno))))
+ && (global_regs[regno]
+ || fixed_regs[regno]
+ || FUNCTION_ARG_REGNO_P (regno))))
return 0;
return REGNO_REG_SET_P (basic_block_live_at_start[0], regno);