In patch #4, I mentioned that the spec 2006 benchmark 'tonto' generated
different with the patches applied. I tracked it down, and it was due to the
call I inserted in rs6000_debug_reg_print to update the conditional register
usage seemed to set the Altivec registers VS0..VS19 to call_used instead of
call_saved. Since I no longer need to set the conditional register usage with
-mdebug=reg, it is simpler to just delete it.
2018-03-16 Michael Meissner <meiss...@linux.vnet.ibm.com>
* config/rs6000/rs6000.c (rs6000_debug_reg_print): Eliminate call
to rs6000_conditional_register_usage.
--
Michael Meissner, IBM
IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA
email: meiss...@linux.vnet.ibm.com, phone: +1 (978) 899-4797
Index: gcc/config/rs6000/rs6000.c
===================================================================
--- gcc/config/rs6000/rs6000.c (revision 258576)
+++ gcc/config/rs6000/rs6000.c (working copy)
@@ -1314,7 +1314,6 @@ static bool rs6000_debug_can_change_mode
reg_class_t);
static bool rs6000_save_toc_in_prologue_p (void);
static rtx rs6000_internal_arg_pointer (void);
-static void rs6000_conditional_register_usage (void);
rtx (*rs6000_legitimize_reload_address_ptr) (rtx, machine_mode, int, int,
int, int *)
@@ -2144,10 +2143,6 @@ rs6000_debug_reg_print (int first_regno,
{
int r, m;
- /* Insure the conditional registers are up to date when printing the debug
- information. */
- rs6000_conditional_register_usage ();
-
for (r = first_regno; r <= last_regno; ++r)
{
const char *comma = "";
