[PATCH, i386]: Add *x->?r alternative to *zero_extendsidi2

[Uros Bizjak]

Hello!

2013-05-12  Uros Bizjak  <ubiz...@gmail.com>

    * config/i386/i386.md (*zero_extendsidi2): Add *x->?r alternative.

Tested on x86_64-pc-linux-gnu {,-m32} and committed to mainline SVN.

Uros.

Index: config/i386/i386.md
===================================================================
--- config/i386/i386.md (revision 198804)
+++ config/i386/i386.md (working copy)
@@ -3092,10 +3092,10 @@
 
 (define_insn "*zero_extendsidi2"
   [(set (match_operand:DI 0 "nonimmediate_operand"
-                       "=r,?r,?o,r   ,o,?*Ym,?!*y,?r ,?*Yi,?*x")
+                       "=r,?r,?o,r   ,o,?*Ym,?!*y,?r ,?r,?*Yi,?*x")
        (zero_extend:DI
         (match_operand:SI 1 "x86_64_zext_operand"
-                       "0 ,rm,r ,rmWz,0,r   ,m   ,*Yj,r   ,m")))]
+                       "0 ,rm,r ,rmWz,0,r   ,m   ,*Yj,*x,r   ,m")))]
   ""
 {
   switch (get_attr_type (insn))
@@ -3112,6 +3112,9 @@
     case TYPE_MMXMOV:
       return "movd\t{%1, %0|%0, %1}";
 
+    case TYPE_SSELOG1:
+      return "%vpextrd\t{$0, %1, %k0|%k0, %1, 0}";
+
     case TYPE_SSEMOV:
       if (GENERAL_REG_P (operands[0]))
        return "%vmovd\t{%1, %k0|%k0, %1}";
@@ -3127,7 +3130,9 @@
              (const_string "nox64")
            (eq_attr "alternative" "3,7")
              (const_string "x64")
-           (eq_attr "alternative" "9")
+           (eq_attr "alternative" "8")
+             (const_string "x64_sse4")
+           (eq_attr "alternative" "10")
              (const_string "sse2")
           ]
           (const_string "*")))
@@ -3136,12 +3141,22 @@
              (const_string "multi")
            (eq_attr "alternative" "5,6")
              (const_string "mmxmov")
-           (eq_attr "alternative" "7,8,9")
+           (eq_attr "alternative" "7,9,10")
              (const_string "ssemov")
+           (eq_attr "alternative" "8")
+             (const_string "sselog1")
           ]
           (const_string "imovx")))
+   (set (attr "prefix_extra")
+     (if_then_else (eq_attr "alternative" "8")
+       (const_string "1")
+       (const_string "*")))
+   (set (attr "length_immediate")
+     (if_then_else (eq_attr "alternative" "8")
+       (const_string "1")
+       (const_string "*")))
    (set (attr "prefix")
-     (if_then_else (eq_attr "type" "ssemov")
+     (if_then_else (eq_attr "type" "ssemov,sselog1")
        (const_string "maybe_vex")
        (const_string "orig")))
    (set (attr "prefix_0f")