[patch committed] [SH] Allow non-pic local and global dynamic tls models

[Kaz Kojima]

Hi,

The attached patch allows SH target to use local and global dynamic
tls models without -fpic/-fpie.  Tested on sh4-unknown-linux-gnu
with no new failures.  Applied on trunk.

Regards,
	kaz
--
2011-06-08  Kaz Kojima  <kkojima@gcc.gnu.org>

	* config/sh/sh.c (prepare_move_operands): Set pic register
	appropriately for global and local dynamic tls models even
	if flag_pic is unset.

--- ORIG/trunk/gcc/config/sh/sh.c	2011-06-02 09:41:16.000000000 +0900
+++ trunk/gcc/config/sh/sh.c	2011-06-07 22:32:02.000000000 +0900
@@ -1844,12 +1844,30 @@ prepare_move_operands (rtx operands[], e
 	{
 	  rtx tga_op1, tga_ret, tmp, tmp2;
 
+	  if (! flag_pic
+	      && (tls_kind == TLS_MODEL_GLOBAL_DYNAMIC
+		  || tls_kind == TLS_MODEL_LOCAL_DYNAMIC
+		  || tls_kind == TLS_MODEL_INITIAL_EXEC))
+	    {
+	      /* 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_use (gen_rtx_REG (SImode, PIC_REG));
+	      if (flag_schedule_insns)
+		emit_insn (gen_blockage ());
+	}
+
 	  switch (tls_kind)
 	    {
 	    case TLS_MODEL_GLOBAL_DYNAMIC:
 	      tga_ret = gen_rtx_REG (Pmode, R0_REG);
 	      emit_call_insn (gen_tls_global_dynamic (tga_ret, op1));
-	      op1 = tga_ret;
+	      tmp = gen_reg_rtx (Pmode);
+	      emit_move_insn (tmp, tga_ret);
+	      op1 = tmp;
 	      break;
 
 	    case TLS_MODEL_LOCAL_DYNAMIC:
@@ -1869,18 +1887,6 @@ prepare_move_operands (rtx operands[], e
 	      break;
 
 	    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_use (gen_rtx_REG (SImode, PIC_REG));
-		  if (flag_schedule_insns)
-		    emit_insn (gen_blockage ());
-		}
 	      tga_op1 = !can_create_pseudo_p () ? op0 : gen_reg_rtx (Pmode);
 	      tmp = gen_sym2GOTTPOFF (op1);
 	      emit_insn (gen_tls_initial_exec (tga_op1, tmp));