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

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 120890b..3fbd36b 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,12 @@
+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.

diff --git a/gcc/config/sparc/sparc.c b/gcc/config/sparc/sparc.c
index 1b3b4c8..40db03f 100644 (file)
--- a/gcc/config/sparc/sparc.c
+++ b/gcc/config/sparc/sparc.c
@@ -11485,49 +11485,47 @@ 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));
-  emit_insn (gen_faligndatav4hi_vis (target, t1, target));
+  for (i = 0; i < 4; i++)
+    emit_insn (gen_faligndatav4hi_vis (target, t1, target));
 }
 
 /* Emit code to initialize TARGET to values for individual fields VALS.  */
@@ -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;
        }
     }