re PR target/18447 (Variable with the initial-exec tls-model attribute causes spill failure)

	PR target/18447
	* config/sh/sh.c (prepare_move_operands): Emit blockage insns
	before and after the insns for getting GOT address in non-PIC
	TLS_MODEL_INITIAL_EXEC tls sequence when the first scheduling
	is enabled.

From-SVN: r90732

gcc/ChangeLog

+2004-11-16  Kaz Kojima  <kkojima@gcc.gnu.org>
+
+	PR target/18447
+	* config/sh/sh.c (prepare_move_operands): Emit blockage insns
+	before and after the insns for getting GOT address in non-PIC
+	TLS_MODEL_INITIAL_EXEC tls sequence when the first scheduling
+	is enabled.
+
 2004-11-16  Andreas Krebbel  <krebbel1@de.ibm.com>
 
 	* gcc/cse.c (struct change_cc_mode_args): New structure.

gcc/config/sh/sh.c

@@ -1042,9 +1042,16 @@ prepare_move_operands (rtx operands[], enum machine_mode mode)
 	    case TLS_MODEL_INITIAL_EXEC:
 	      if (! flag_pic)
 		{
+		  /* Don't schedule insns for getting GOT address when
+		     the first scheduling is enabled, to avoid spill
+		     failures for R0.  */
+		  if (flag_schedule_insns)
+		    emit_insn (gen_blockage ());
 		  emit_insn (gen_GOTaddr2picreg ());
 		  emit_insn (gen_rtx_USE (VOIDmode, gen_rtx_REG (SImode,
 								 PIC_REG)));
+		  if (flag_schedule_insns)
+		    emit_insn (gen_blockage ());
 		}
 	      tga_op1 = no_new_pseudos ? op0 : gen_reg_rtx (Pmode);
 	      tmp = gen_sym2GOTTPOFF (op1);