PR target/51920

	* config/sparc/sparc.c (vector_init_fpmerge): Remove INNER_MODE
	parameter and use short-lived pseudos.
	(vector_init_faligndata): Remove INNER_MODE parameter and use loop.
	(sparc_expand_vector_init): Const-ify local variables and adjust
	calls to above functions.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@183717 138bc75d-0d04-0410-961f-82ee72b054a4

gcc/ChangeLog

+2012-01-30  Eric Botcazou  <ebotcazou@adacore.com>
+
+	PR target/51920
+	* config/sparc/sparc.c (vector_init_fpmerge): Remove INNER_MODE
+	parameter and use short-lived pseudos.
+	(vector_init_faligndata): Remove INNER_MODE parameter and use loop.
+	(sparc_expand_vector_init): Const-ify local variables and adjust
+	calls to above functions.
+
 2012-01-30  Georg-Johann Lay  <avr@gjlay.de>
 
 	* config/avr/avr.c (out_movqi_mr_r): Fix length computation.

gcc/config/sparc/sparc.c

@@ -11485,48 +11485,46 @@ vector_init_bshuffle (rtx target, rtx elt, enum machine_mode mode,
   emit_insn (final_insn);
 }
 
+/* Subroutine of sparc_expand_vector_init.  Emit code to initialize
+   all fields of TARGET to ELT in V8QI by means of VIS FPMERGE insn.  */
+
 static void
-vector_init_fpmerge (rtx target, rtx elt, enum machine_mode inner_mode)
+vector_init_fpmerge (rtx target, rtx elt)
 {
-  rtx t1, t2, t3, t3_low;
+  rtx t1, t2, t2_low, t3, t3_low;
 
   t1 = gen_reg_rtx (V4QImode);
-  elt = convert_modes (SImode, inner_mode, elt, true);
+  elt = convert_modes (SImode, QImode, elt, true);
   emit_move_insn (gen_lowpart (SImode, t1), elt);
 
-  t2 = gen_reg_rtx (V4QImode);
-  emit_move_insn (t2, t1);
+  t2 = gen_reg_rtx (V8QImode);
+  t2_low = gen_lowpart (V4QImode, t2);
+  emit_insn (gen_fpmerge_vis (t2, t1, t1));
 
   t3 = gen_reg_rtx (V8QImode);
   t3_low = gen_lowpart (V4QImode, t3);
+  emit_insn (gen_fpmerge_vis (t3, t2_low, t2_low));
 
-  emit_insn (gen_fpmerge_vis (t3, t1, t2));
-  emit_move_insn (t1, t3_low);
-  emit_move_insn (t2, t3_low);
-
-  emit_insn (gen_fpmerge_vis (t3, t1, t2));
-  emit_move_insn (t1, t3_low);
-  emit_move_insn (t2, t3_low);
-
-  emit_insn (gen_fpmerge_vis (gen_lowpart (V8QImode, target), t1, t2));
+  emit_insn (gen_fpmerge_vis (target, t3_low, t3_low));
 }
 
+/* Subroutine of sparc_expand_vector_init.  Emit code to initialize
+   all fields of TARGET to ELT in V4HI by means of VIS FALIGNDATA insn.  */
+
 static void
-vector_init_faligndata (rtx target, rtx elt, enum machine_mode inner_mode)
+vector_init_faligndata (rtx target, rtx elt)
 {
   rtx t1 = gen_reg_rtx (V4HImode);
+  int i;
 
-  elt = convert_modes (SImode, inner_mode, elt, true);
-
+  elt = convert_modes (SImode, HImode, elt, true);
   emit_move_insn (gen_lowpart (SImode, t1), elt);
 
   emit_insn (gen_alignaddrsi_vis (gen_reg_rtx (SImode),
 				  force_reg (SImode, GEN_INT (6)),
-				  CONST0_RTX (SImode)));
+				  const0_rtx));
 
-  emit_insn (gen_faligndatav4hi_vis (target, t1, target));
-  emit_insn (gen_faligndatav4hi_vis (target, t1, target));
-  emit_insn (gen_faligndatav4hi_vis (target, t1, target));
+  for (i = 0; i < 4; i++)
     emit_insn (gen_faligndatav4hi_vis (target, t1, target));
 }
 
@@ -11535,9 +11533,9 @@ vector_init_faligndata (rtx target, rtx elt, enum machine_mode inner_mode)
 void
 sparc_expand_vector_init (rtx target, rtx vals)
 {
-  enum machine_mode mode = GET_MODE (target);
-  enum machine_mode inner_mode = GET_MODE_INNER (mode);
-  int n_elts = GET_MODE_NUNITS (mode);
+  const enum machine_mode mode = GET_MODE (target);
+  const enum machine_mode inner_mode = GET_MODE_INNER (mode);
+  const int n_elts = GET_MODE_NUNITS (mode);
   int i, n_var = 0;
   bool all_same;
   rtx mem;
@@ -11593,12 +11591,12 @@ sparc_expand_vector_init (rtx target, rtx vals)
 	}
       if (mode == V8QImode)
 	{
-	  vector_init_fpmerge (target, XVECEXP (vals, 0, 0), inner_mode);
+	  vector_init_fpmerge (target, XVECEXP (vals, 0, 0));
 	  return;
 	}
       if (mode == V4HImode)
 	{
-	  vector_init_faligndata (target, XVECEXP (vals, 0, 0), inner_mode);
+	  vector_init_faligndata (target, XVECEXP (vals, 0, 0));
 	  return;
 	}
     }