[Darwin, PPC, Mode Iterators 2/n] Eliminate picbase expanders.

We can use the mode iterators directly with an @pattern to avoid the
need for an expander that was only there to pass the mode through.

gcc/ChangeLog:

2019-09-26  Iain Sandoe  <iain@sandoe.co.uk>

	* config/rs6000/darwin.md: Replace the expanders for
	load_macho_picbase and reload_macho_picbase with use of '@'
	in their respective define_insns.
	(nonlocal_goto_receiver): Pass Pmode to gen_reload_macho_picbase.
	* config/rs6000/rs6000-logue.c (rs6000_emit_prologue): Pass
	Pmode to gen_load_macho_picbase.
	* config/rs6000/rs6000.md: Likewise.

From-SVN: r276159

gcc/ChangeLog

+2019-09-26  Iain Sandoe  <iain@sandoe.co.uk>
+
+	* config/rs6000/darwin.md: Replace the expanders for
+	load_macho_picbase and reload_macho_picbase with use of '@'
+	and <mode> in their respective define_insns.
+	(nonlocal_goto_receiver): Pass Pmode to gen_reload_macho_picbase.
+	* config/rs6000/rs6000-logue.c (rs6000_emit_prologue): Pass
+	Pmode to gen_load_macho_picbase.
+	* config/rs6000/rs6000.md: Likewise.
+
 2019-09-25  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/91896

gcc/config/rs6000/darwin.md

@@ -216,21 +216,7 @@ You should have received a copy of the GNU General Public License
 	(match_dup 2))]
   "")
 
-(define_expand "load_macho_picbase"
-  [(set (reg LR_REGNO)
-        (unspec [(match_operand 0 "")]
-                   UNSPEC_LD_MPIC))]
-  "(DEFAULT_ABI == ABI_DARWIN) && flag_pic"
-{
-  if (TARGET_32BIT)
-    emit_insn (gen_load_macho_picbase_si (operands[0]));
-  else
-    emit_insn (gen_load_macho_picbase_di (operands[0]));
-
-  DONE;
-})
-
-(define_insn "load_macho_picbase_<mode>"
+(define_insn "@load_macho_picbase_<mode>"
   [(set (reg:P LR_REGNO)
 	(unspec:P [(match_operand:P 0 "immediate_operand" "s")
 		    (pc)] UNSPEC_LD_MPIC))]
@@ -284,21 +270,7 @@ You should have received a copy of the GNU General Public License
   "addis %0,%1,ha16(%2-%3)\n\taddi %0,%0,lo16(%2-%3)"
   [(set_attr "length" "8")])
 
-(define_expand "reload_macho_picbase"
-  [(set (reg LR_REGNO)
-        (unspec [(match_operand 0 "")]
-                   UNSPEC_RELD_MPIC))]
-  "(DEFAULT_ABI == ABI_DARWIN) && flag_pic"
-{
-  if (TARGET_32BIT)
-    emit_insn (gen_reload_macho_picbase_si (operands[0]));
-  else
-    emit_insn (gen_reload_macho_picbase_di (operands[0]));
-
-  DONE;
-})
-
-(define_insn "reload_macho_picbase_<mode>"
+(define_insn "@reload_macho_picbase_<mode>"
   [(set (reg:P LR_REGNO)
         (unspec:P [(match_operand:P 0 "immediate_operand" "s")
 		    (pc)] UNSPEC_RELD_MPIC))]
@@ -342,7 +314,7 @@ You should have received a copy of the GNU General Public License
       ASM_GENERATE_INTERNAL_LABEL(tmplab, "Lnlgr", ++n);
       tmplrtx = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (tmplab));
 
-      emit_insn (gen_reload_macho_picbase (tmplrtx));
+      emit_insn (gen_reload_macho_picbase (Pmode, tmplrtx));
       emit_move_insn (picreg, gen_rtx_REG (Pmode, LR_REGNO));
       emit_insn (gen_macho_correct_pic (picreg, picreg, picrtx, tmplrtx));
     }

gcc/config/rs6000/rs6000-logue.c

@@ -3809,7 +3809,7 @@ rs6000_emit_prologue (void)
       if (!info->lr_save_p)
 	emit_move_insn (gen_rtx_REG (Pmode, 0), lr);
 
-      emit_insn (gen_load_macho_picbase (src));
+      emit_insn (gen_load_macho_picbase (Pmode, src));
 
       emit_move_insn (gen_rtx_REG (Pmode,
 				   RS6000_PIC_OFFSET_TABLE_REGNUM),

gcc/config/rs6000/rs6000.md

@@ -10053,7 +10053,7 @@
 				  CODE_LABEL_NUMBER (operands[0]));
       tmplabrtx = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (tmplab));
 
-      emit_insn (gen_load_macho_picbase (tmplabrtx));
+      emit_insn (gen_load_macho_picbase (Pmode, tmplabrtx));
       emit_move_insn (picreg, gen_rtx_REG (Pmode, LR_REGNO));
       emit_insn (gen_macho_correct_pic (picreg, picreg, picrtx, tmplabrtx));
     }