[Darwin, PPC, Mode Iterators 1/n] Use mode iterators in picbase patterns.

This switches the picbase load and reload patterns to use the 'P' mode
iterator instead of writing an SI and DI pattern for each.

gcc/ChangeLog:

2019-09-24  Iain Sandoe  <iain@sandoe.co.uk>

	* config/rs6000/rs6000.md (load_macho_picbase_<mode>): New, using
	the 'P' mode iterator, replacing the (removed) SI and DI variants.
	(reload_macho_picbase_<mode>): Likewise.

From-SVN: r276107

gcc/ChangeLog

 2019-09-24  Iain Sandoe  <iain@sandoe.co.uk>
 
+	* config/rs6000/rs6000.md (load_macho_picbase_<mode>): New, using
+	the 'P' mode iterator, replacing the (removed) SI and DI variants.
+	(reload_macho_picbase_<mode>): Likewise.
+
+2019-09-24  Iain Sandoe  <iain@sandoe.co.uk>
+
 	* config/rs6000/rs6000.md: Move darwin.md include until
 	after the definition of the mode iterators.
 

gcc/config/rs6000/darwin.md

@@ -217,7 +217,7 @@ You should have received a copy of the GNU General Public License
   "")
 
 (define_expand "load_macho_picbase"
-  [(set (reg:SI LR_REGNO)
+  [(set (reg LR_REGNO)
         (unspec [(match_operand 0 "")]
                    UNSPEC_LD_MPIC))]
   "(DEFAULT_ABI == ABI_DARWIN) && flag_pic"
@@ -230,9 +230,9 @@ You should have received a copy of the GNU General Public License
   DONE;
 })
 
-(define_insn "load_macho_picbase_si"
-  [(set (reg:SI LR_REGNO)
-	(unspec:SI [(match_operand:SI 0 "immediate_operand" "s")
+(define_insn "load_macho_picbase_<mode>"
+  [(set (reg:P LR_REGNO)
+	(unspec:P [(match_operand:P 0 "immediate_operand" "s")
 		    (pc)] UNSPEC_LD_MPIC))]
   "(DEFAULT_ABI == ABI_DARWIN) && flag_pic"
 {
@@ -246,22 +246,6 @@ You should have received a copy of the GNU General Public License
   [(set_attr "type" "branch")
    (set_attr "cannot_copy" "yes")])
 
-(define_insn "load_macho_picbase_di"
-  [(set (reg:DI LR_REGNO)
-	(unspec:DI [(match_operand:DI 0 "immediate_operand" "s")
-		    (pc)] UNSPEC_LD_MPIC))]
-  "(DEFAULT_ABI == ABI_DARWIN) && flag_pic && TARGET_64BIT"
-{
-#if TARGET_MACHO
-  machopic_should_output_picbase_label (); /* Update for new func.  */
-#else
-  gcc_unreachable ();
-#endif
-  return "bcl 20,31,%0\n%0:";
-}
-  [(set_attr "type" "branch")
-   (set_attr "cannot_copy" "yes")])
-
 (define_expand "macho_correct_pic"
   [(set (match_operand 0 "")
 	(plus (match_operand 1 "")
@@ -301,7 +285,7 @@ You should have received a copy of the GNU General Public License
   [(set_attr "length" "8")])
 
 (define_expand "reload_macho_picbase"
-  [(set (reg:SI LR_REGNO)
+  [(set (reg LR_REGNO)
         (unspec [(match_operand 0 "")]
                    UNSPEC_RELD_MPIC))]
   "(DEFAULT_ABI == ABI_DARWIN) && flag_pic"
@@ -314,9 +298,9 @@ You should have received a copy of the GNU General Public License
   DONE;
 })
 
-(define_insn "reload_macho_picbase_si"
-  [(set (reg:SI LR_REGNO)
-        (unspec:SI [(match_operand:SI 0 "immediate_operand" "s")
+(define_insn "reload_macho_picbase_<mode>"
+  [(set (reg:P LR_REGNO)
+        (unspec:P [(match_operand:P 0 "immediate_operand" "s")
 		    (pc)] UNSPEC_RELD_MPIC))]
   "(DEFAULT_ABI == ABI_DARWIN) && flag_pic"
 {
@@ -337,29 +321,6 @@ You should have received a copy of the GNU General Public License
   [(set_attr "type" "branch")
    (set_attr "cannot_copy" "yes")])
 
-(define_insn "reload_macho_picbase_di"
-  [(set (reg:DI LR_REGNO)
-	(unspec:DI [(match_operand:DI 0 "immediate_operand" "s")
-		    (pc)] UNSPEC_RELD_MPIC))]
-  "(DEFAULT_ABI == ABI_DARWIN) && flag_pic && TARGET_64BIT"
-{
-#if TARGET_MACHO
-  if (machopic_should_output_picbase_label ())
-    {
-      static char tmp[64];
-      const char *cnam = machopic_get_function_picbase ();
-      snprintf (tmp, 64, "bcl 20,31,%s\n%s:\n%%0:", cnam, cnam);
-      return tmp;
-    }
-  else
-#else
-  gcc_unreachable ();
-#endif
-    return "bcl 20,31,%0\n%0:";
-}
-  [(set_attr "type" "branch")
-   (set_attr "cannot_copy" "yes")])
-
 ;; We need to restore the PIC register, at the site of nonlocal label.
 
 (define_insn_and_split "nonlocal_goto_receiver"