2005-11-07 Paolo Bonzini <bonzini@gnu.org>

[pf3gnuchains/gcc-fork.git] / gcc / config / rs6000 / altivec.md

diff --git a/gcc/config/rs6000/altivec.md b/gcc/config/rs6000/altivec.md
index 97e5f4c..26ec2be 100644 (file)
--- a/gcc/config/rs6000/altivec.md
+++ b/gcc/config/rs6000/altivec.md
@@ -202,18 +202,6 @@
 })
 
 (define_split
-  [(set (match_operand:V4SI 0 "altivec_register_operand" "")
-       (match_operand:V4SI 1 "easy_vector_constant_add_self" ""))]
-  "TARGET_ALTIVEC && reload_completed"
-  [(set (match_dup 0) (match_dup 3))
-   (set (match_dup 0)
-       (plus:V4SI (match_dup 0)
-                  (match_dup 0)))]
-{ 
-  operands[3] = gen_easy_vector_constant_add_self (operands[1]);
-})    
-
-(define_split
   [(set (match_operand:V8HI 0 "nonimmediate_operand" "")
         (match_operand:V8HI 1 "input_operand" ""))]
   "TARGET_ALTIVEC && reload_completed
@@ -222,18 +210,6 @@
 { rs6000_split_multireg_move (operands[0], operands[1]); DONE; })
 
 (define_split
-  [(set (match_operand:V8HI 0 "altivec_register_operand" "")
-       (match_operand:V8HI 1 "easy_vector_constant_add_self" ""))]
-  "TARGET_ALTIVEC && reload_completed"
-  [(set (match_dup 0) (match_dup 3))
-   (set (match_dup 0)
-       (plus:V8HI (match_dup 0)
-                  (match_dup 0)))]
-{
-  operands[3] = gen_easy_vector_constant_add_self (operands[1]);
-})
-
-(define_split
   [(set (match_operand:V16QI 0 "nonimmediate_operand" "")
         (match_operand:V16QI 1 "input_operand" ""))]
   "TARGET_ALTIVEC && reload_completed
@@ -242,18 +218,6 @@
 { rs6000_split_multireg_move (operands[0], operands[1]); DONE; })
 
 (define_split
-  [(set (match_operand:V16QI 0 "altivec_register_operand" "")
-       (match_operand:V16QI 1 "easy_vector_constant_add_self" ""))]
-  "TARGET_ALTIVEC && reload_completed"
-  [(set (match_dup 0) (match_dup 3))
-   (set (match_dup 0)
-       (plus:V16QI (match_dup 0)
-                  (match_dup 0)))]
-{
-  operands[3] = gen_easy_vector_constant_add_self (operands[1]);
-})
-
-(define_split
   [(set (match_operand:V4SF 0 "nonimmediate_operand" "")
         (match_operand:V4SF 1 "input_operand" ""))]
   "TARGET_ALTIVEC && reload_completed
@@ -263,6 +227,29 @@
   rs6000_split_multireg_move (operands[0], operands[1]); DONE;
 })
 
+(define_split
+  [(set (match_operand:VI 0 "altivec_register_operand" "")
+       (match_operand:VI 1 "easy_vector_constant_add_self" ""))]
+  "TARGET_ALTIVEC && reload_completed"
+  [(set (match_dup 0) (match_dup 3))
+   (set (match_dup 0) (plus:VI (match_dup 0)
+                              (match_dup 0)))]
+{
+  rtx dup = gen_easy_altivec_constant (operands[1]);
+  rtx const_vec;
+
+  /* Divide the operand of the resulting VEC_DUPLICATE, and use
+     simplify_rtx to make a CONST_VECTOR.  */
+  XEXP (dup, 0) = simplify_const_binary_operation (ASHIFTRT, QImode,
+                                                  XEXP (dup, 0), const1_rtx);
+  const_vec = simplify_rtx (dup);
+
+  if (GET_MODE (const_vec) == <MODE>mode)
+    operands[3] = const_vec;
+  else
+    operands[3] = gen_lowpart (<MODE>mode, const_vec);
+})
+
 (define_insn "get_vrsave_internal"
   [(set (match_operand:SI 0 "register_operand" "=r")
        (unspec:SI [(reg:SI 109)] UNSPEC_GET_VRSAVE))]