re PR target/44266 (stack frame lacks parameter save area)

	PR target/44266
	* config/rs6000/rs6000.c (rs6000_legitimize_tls_address): Use
	emit_library_call machinery to set up __tls_get_addr calls.

From-SVN: r159963

gcc/ChangeLog

+2010-05-28  Alan Modra  <amodra@gmail.com>
+
+	PR target/44266
+	* config/rs6000/rs6000.c (rs6000_legitimize_tls_address): Use
+	emit_library_call machinery to set up __tls_get_addr calls.
+
 2010-05-28  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 
 	* config/s390/s390.md (movqi): Fix typo ('*' -> '#').

gcc/config/rs6000/rs6000.c

@@ -5397,7 +5397,7 @@ rs6000_legitimize_tls_address (rtx addr, enum tls_model model)
     }
   else
     {
-      rtx r3, got, tga, tmp1, tmp2, eqv;
+      rtx r3, got, tga, tmp1, tmp2, call_insn;
 
       /* We currently use relocations like @got@tlsgd for tls, which
 	 means the linker will handle allocation of tls entries, placing
@@ -5441,6 +5441,7 @@ rs6000_legitimize_tls_address (rtx addr, enum tls_model model)
 	{
 	  r3 = gen_rtx_REG (Pmode, 3);
 	  tga = rs6000_tls_get_addr ();
+	  emit_library_call_value (tga, dest, LCT_CONST, Pmode, 1, r3, Pmode);
 
 	  if (DEFAULT_ABI == ABI_AIX && TARGET_64BIT)
 	    insn = gen_tls_gd_aix64 (r3, got, addr, tga, const0_rtx);
@@ -5450,21 +5451,18 @@ rs6000_legitimize_tls_address (rtx addr, enum tls_model model)
 	    insn = gen_tls_gd_sysvsi (r3, got, addr, tga, const0_rtx);
 	  else
 	    gcc_unreachable ();
-
-	  start_sequence ();
-	  insn = emit_call_insn (insn);
-	  RTL_CONST_CALL_P (insn) = 1;
-	  use_reg (&CALL_INSN_FUNCTION_USAGE (insn), r3);
+	  call_insn = last_call_insn ();
+	  PATTERN (call_insn) = insn;
 	  if (DEFAULT_ABI == ABI_V4 && TARGET_SECURE_PLT && flag_pic)
-	    use_reg (&CALL_INSN_FUNCTION_USAGE (insn), pic_offset_table_rtx);
-	  insn = get_insns ();
-	  end_sequence ();
-	  emit_libcall_block (insn, dest, r3, addr);
+	    use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn),
+		     pic_offset_table_rtx);
 	}
       else if (model == TLS_MODEL_LOCAL_DYNAMIC)
 	{
 	  r3 = gen_rtx_REG (Pmode, 3);
 	  tga = rs6000_tls_get_addr ();
+	  tmp1 = gen_reg_rtx (Pmode);
+	  emit_library_call_value (tga, tmp1, LCT_CONST, Pmode, 1, r3, Pmode);
 
 	  if (DEFAULT_ABI == ABI_AIX && TARGET_64BIT)
 	    insn = gen_tls_ld_aix64 (r3, got, tga, const0_rtx);
@@ -5474,19 +5472,12 @@ rs6000_legitimize_tls_address (rtx addr, enum tls_model model)
 	    insn = gen_tls_ld_sysvsi (r3, got, tga, const0_rtx);
 	  else
 	    gcc_unreachable ();
-
-	  start_sequence ();
-	  insn = emit_call_insn (insn);
-	  RTL_CONST_CALL_P (insn) = 1;
-	  use_reg (&CALL_INSN_FUNCTION_USAGE (insn), r3);
+	  call_insn = last_call_insn ();
+	  PATTERN (call_insn) = insn;
 	  if (DEFAULT_ABI == ABI_V4 && TARGET_SECURE_PLT && flag_pic)
-	    use_reg (&CALL_INSN_FUNCTION_USAGE (insn), pic_offset_table_rtx);
-	  insn = get_insns ();
-	  end_sequence ();
-	  tmp1 = gen_reg_rtx (Pmode);
-	  eqv = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, const0_rtx),
-				UNSPEC_TLSLD);
-	  emit_libcall_block (insn, tmp1, r3, eqv);
+	    use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn),
+		     pic_offset_table_rtx);
+
 	  if (rs6000_tls_size == 16)
 	    {
 	      if (TARGET_64BIT)