rs6000.md (signbit<mode>2_dm): Make this a parameterized name.

@signbit<mode>2_dm


	* config/rs6000/rs6000.md (signbit<mode>2_dm): Make this a
	parameterized name.
	(signbit<mode>2): Use that name.  Simplify.

From-SVN: r272912

gcc/ChangeLog

+2019-07-01  Segher Boessenkool  <segher@kernel.crashing.org>
+
+	* config/rs6000/rs6000.md (signbit<mode>2_dm): Make this a
+	parameterized name.
+	(signbit<mode>2): Use that name.  Simplify.
+
 2019-07-01  Joern Rennecke  <joern.rennecke@riscy-ip.com>
 
 	PR middle-end/66726

gcc/config/rs6000/rs6000.md

@@ -4857,13 +4857,7 @@
       rtx tmp = gen_reg_rtx (DImode);
       rtx dest_di = gen_lowpart (DImode, dest);
 
-      if (<MODE>mode == KFmode)
-	emit_insn (gen_signbitkf2_dm (tmp, src));
-      else if (<MODE>mode == TFmode)
-	emit_insn (gen_signbittf2_dm (tmp, src));
-      else
-	gcc_unreachable ();
-
+      emit_insn (gen_signbit2_dm (<MODE>mode, tmp, src));
       emit_insn (gen_lshrdi3 (dest_di, tmp, GEN_INT (63)));
       DONE;
     }
@@ -4893,7 +4887,7 @@
 ;; After register allocation, if the _Float128 had originally been in GPRs, the
 ;; split allows the post reload phases to eliminate the move, and do the shift
 ;; directly with the register that contains the signbit.
-(define_insn_and_split "signbit<mode>2_dm"
+(define_insn_and_split "@signbit<mode>2_dm"
   [(set (match_operand:DI 0 "gpc_reg_operand" "=r,r")
 	(unspec:DI [(match_operand:SIGNBIT 1 "gpc_reg_operand" "wa,r")]
 		   UNSPEC_SIGNBIT))]