re PR rtl-optimization/60763 (ICE in extract_insn starting with rev 208984)

gcc/
	PR target/60763
	* config/rs6000/vsx.md (vsx_xscvdpspn_scalar): Change input to DImode.
	* config/rs6000/rs6000.md (reload_vsx_from_gprsf): Update accordingly.
	Use gen_rtx_REG rather than simplify_gen_subreg for op0_di.

From-SVN: r209223

gcc/ChangeLog

+2014-04-08  Richard Sandiford  <rdsandiford@googlemail.com>
+
+	PR target/60763
+	* config/rs6000/vsx.md (vsx_xscvdpspn_scalar): Change input to DImode.
+	* config/rs6000/rs6000.md (reload_vsx_from_gprsf): Update accordingly.
+	Use gen_rtx_REG rather than simplify_gen_subreg for op0_di.
+
 2014-04-08  Richard Biener  <rguenther@suse.de>
 
 	PR middle-end/60706

gcc/config/rs6000/rs6000.md

@@ -10029,13 +10029,16 @@
   rtx op0 = operands[0];
   rtx op1 = operands[1];
   rtx op2 = operands[2];
-  rtx op0_di = simplify_gen_subreg (DImode, op0, SFmode, 0);
+  /* Also use the destination register to hold the unconverted DImode value.
+     This is conceptually a separate value from OP0, so we use gen_rtx_REG
+     rather than simplify_gen_subreg.  */
+  rtx op0_di = gen_rtx_REG (DImode, REGNO (op0));
   rtx op1_di = simplify_gen_subreg (DImode, op1, SFmode, 0);
 
   /* Move SF value to upper 32-bits for xscvspdpn.  */
   emit_insn (gen_ashldi3 (op2, op1_di, GEN_INT (32)));
   emit_move_insn (op0_di, op2);
-  emit_insn (gen_vsx_xscvspdpn_directmove (op0, op0));
+  emit_insn (gen_vsx_xscvspdpn_directmove (op0, op0_di));
   DONE;
 }
   [(set_attr "length" "8")

gcc/config/rs6000/vsx.md

@@ -1223,7 +1223,7 @@
 ;; Used by direct move to move a SFmode value from GPR to VSX register
 (define_insn "vsx_xscvspdpn_directmove"
   [(set (match_operand:SF 0 "vsx_register_operand" "=wa")
-	(unspec:SF [(match_operand:SF 1 "vsx_register_operand" "wa")]
+	(unspec:SF [(match_operand:DI 1 "vsx_register_operand" "wa")]
 		   UNSPEC_VSX_CVSPDPN))]
   "TARGET_XSCVSPDPN"
   "xscvspdpn %x0,%x1"