[Patch, AArch64] Add w -> w constraint to vec_set.

[Tejas Belagod]

Hi,

The attached patch adds a w -> w constraint to vec_set.

Tested on aarch64-none-elf and aarch64_be-none-elf. OK for trunk?

Thanks,
Tejas Belagod
ARM.

Changelog:

2013-11-05  Tejas Belagod  <tejas.bela...@arm.com>

gcc/
        * config/aarch64/aarch64-simd.md (vec_set<mode>): Add w -> w option to
        the constraint.
diff --git a/gcc/config/aarch64/aarch64-simd.md 
b/gcc/config/aarch64/aarch64-simd.md
index a747ee8..df4ef95 100644
--- a/gcc/config/aarch64/aarch64-simd.md
+++ b/gcc/config/aarch64/aarch64-simd.md
@@ -695,16 +695,18 @@
 )
 
 (define_insn "aarch64_simd_vec_set<mode>"
-  [(set (match_operand:VQ_S 0 "register_operand" "=w")
+  [(set (match_operand:VQ_S 0 "register_operand" "=w,w")
         (vec_merge:VQ_S
            (vec_duplicate:VQ_S
-               (match_operand:<VEL> 1 "register_operand" "r"))
-           (match_operand:VQ_S 3 "register_operand" "0")
-           (match_operand:SI 2 "immediate_operand" "i")))]
+               (match_operand:<VEL> 1 "register_operand" "r,w"))
+           (match_operand:VQ_S 3 "register_operand" "0,0")
+           (match_operand:SI 2 "immediate_operand" "i,i")))]
   "TARGET_SIMD"
-  "ins\t%0.<Vetype>[%p2], %w1";
-  [(set_attr "simd_type" "simd_insgp")
-   (set_attr "type" "neon_from_gp<q>")
+  "@
+   ins\t%0.<Vetype>[%p2], %w1
+   ins\\t%0.<Vetype>[%p2], %1.<Vetype>[0]"
+  [(set_attr "simd_type" "simd_insgp, simd_ins")
+   (set_attr "type" "neon_from_gp<q>, neon_ins<q>")
    (set_attr "simd_mode" "<MODE>")]
 )
 
@@ -958,9 +960,9 @@
 })
 
 (define_expand "vec_set<mode>"
-  [(match_operand:VQ_S 0 "register_operand" "+w")
-   (match_operand:<VEL> 1 "register_operand" "r")
-   (match_operand:SI 2 "immediate_operand" "")]
+  [(match_operand:VQ_S 0 "register_operand")
+   (match_operand:<VEL> 1 "register_operand")
+   (match_operand:SI 2 "immediate_operand")]
   "TARGET_SIMD"
   {
     HOST_WIDE_INT elem = (HOST_WIDE_INT) 1 << INTVAL (operands[2]);
@@ -971,23 +973,25 @@
 )
 
 (define_insn "aarch64_simd_vec_setv2di"
-  [(set (match_operand:V2DI 0 "register_operand" "=w")
+  [(set (match_operand:V2DI 0 "register_operand" "=w,w")
         (vec_merge:V2DI
            (vec_duplicate:V2DI
-               (match_operand:DI 1 "register_operand" "r"))
-           (match_operand:V2DI 3 "register_operand" "0")
-           (match_operand:SI 2 "immediate_operand" "i")))]
+               (match_operand:DI 1 "register_operand" "r,w"))
+           (match_operand:V2DI 3 "register_operand" "0,0")
+           (match_operand:SI 2 "immediate_operand" "i,i")))]
   "TARGET_SIMD"
-  "ins\t%0.d[%p2], %1";
-  [(set_attr "simd_type" "simd_insgp")
-   (set_attr "type" "neon_from_gp")
+  "@
+   ins\t%0.d[%p2], %1
+   ins\\t%0.d[%p2], %1.d[0]"
+  [(set_attr "simd_type" "simd_insgp, simd_ins")
+   (set_attr "type" "neon_from_gp, neon_ins_q")
    (set_attr "simd_mode" "V2DI")]
 )
 
 (define_expand "vec_setv2di"
-  [(match_operand:V2DI 0 "register_operand" "+w")
-   (match_operand:DI 1 "register_operand" "r")
-   (match_operand:SI 2 "immediate_operand" "")]
+  [(match_operand:V2DI 0 "register_operand")
+   (match_operand:DI 1 "register_operand")
+   (match_operand:SI 2 "immediate_operand")]
   "TARGET_SIMD"
   {
     HOST_WIDE_INT elem = (HOST_WIDE_INT) 1 << INTVAL (operands[2]);