* config/ia64/ia64.c: Revert 2002-03-01 patch.
* config/ia64/ia64.h (INIT_EXPANDERS): New.
From-SVN: r51048
+2002-03-19 Richard Henderson <rth@redhat.com>
+
+ * config/ia64/ia64.c: Revert 2002-03-01 patch.
+ * config/ia64/ia64.h (INIT_EXPANDERS): New.
+
2002-03-19 Jim Blandy <jimb@redhat.com>
* cppmacro.c (cpp_macro_definition): Emit a space after the macro
/* Arguments start above the 16 byte save area, unless stdarg
in which case we store through the 16 byte save area. */
if (to == HARD_FRAME_POINTER_REGNUM)
- offset = 16;
+ offset = 16 - current_function_pretend_args_size;
else if (to == STACK_POINTER_REGNUM)
- offset = current_frame_info.total_size + 16;
+ offset = (current_frame_info.total_size
+ + 16 - current_function_pretend_args_size);
else
abort ();
break;
else
ofs = (arg_words >= MAX_ARGUMENT_SLOTS ? -UNITS_PER_WORD : 0);
- nextarg = plus_constant (nextarg, ofs - current_function_pretend_args_size);
+ nextarg = plus_constant (nextarg, ofs);
std_expand_builtin_va_start (1, valist, nextarg);
}
in it. */
#define ARG_POINTER_REGNUM R_GR(0)
+/* Due to the way varargs and argument spilling happens, the argument
+ pointer is not 16-byte aligned like the stack pointer. */
+#define INIT_EXPANDERS \
+ do { \
+ if (cfun && cfun->emit->regno_pointer_align) \
+ REGNO_POINTER_ALIGN (ARG_POINTER_REGNUM) = 64; \
+ } while (0)
+
/* The register number for the return address register. For IA-64, this
is not actually a pointer as the name suggests, but that's a name that
gen_rtx_REG already takes care to keep unique. We modify