Update

From-SVN: r28200

gcc/ChangeLog

+Tue Jul 20 17:07:54 1999  Richard Henderson  <rth@cygnus.com>
+
+	* rs6000.h (struct rs6000_args): Add sysv_gregno.
+	* rs6000.c (init_cumulative_args): Init sysv_gregno.
+	(function_arg_boundary): Align DFmode.
+	(function_arg_advance): Restructure for ABI_V4; use sysv_gregno
+	to get fp reg and stack overflow correct.
+	(function_arg): Likewise.
+	(function_arg_pass_by_reference): True for TFmode for ABI_V4.
+	(setup_incoming_varargs): Restructure for ABI_V4; use 
+	function_arg_advance to skip final named argument.
+	(expand_builtin_saveregs): Properly unskip the last integer arg
+	when doing varargs.  Adjust overflow location calculation.
+
+	* ginclude/va-ppc.h (struct __va_list_tag): Make gpr and fpr 
+	explicitly unsigned.
+	(__VA_FP_REGSAVE): Use new OFS argument instead of AP->fpr directly.
+	(__VA_GP_REGSAVE): Similarly.
+	(__va_longlong_p): Delete.
+	(__va_arg_type_violation): New declaration.
+	(va_arg): Restructure.  Flag promotion errors.  Align double. 
+	TFmode passed by reference.
+
+	* rs6000.md (movdi_32+1): Use GEN_INT after arithmetic
+	in the HOST_BITS_PER_WIDE_INT > 32 case.
+
 Tue Jul 20 12:37:30 1999  Hans-Peter Nilsson  <hp@bitrange.com>
 
 	* dwarf2out.c (output_abbrev_section): Terminate with a zero.