d3dx9: Add missing texkill instruction parsing.

dlls/d3dx9_36/asmshader.y

@@ -705,6 +705,11 @@ instruction:          INSTR_ADD omods dreg ',' sregs
                                 TRACE("DP2ADD\n");
                                 asm_ctx.funcs->instr(&asm_ctx, BWRITERSIO_DP2ADD, $2.mod, $2.shift, 0, &$3, &$5, 3);
                             }
+                    | INSTR_TEXKILL dreg
+                            {
+                                TRACE("TEXKILL\n");
+                                asm_ctx.funcs->instr(&asm_ctx, BWRITERSIO_TEXKILL, 0, 0, 0, &$2, 0, 0);
+                            }
                     | INSTR_TEXLD omods dreg ',' sregs
                             {
                                 TRACE("TEXLD\n");
@@ -769,9 +774,7 @@ dreg_name:            REG_TEMP
                         }
                     | REG_INPUT
                         {
-                            asmparser_message(&asm_ctx, "Line %u: Register v%u is not a valid destination register\n",
-                                              asm_ctx.line_no, $1);
-                            set_parse_status(&asm_ctx, PARSE_WARN);
+                            $$.regnum = $1; $$.type = BWRITERSPR_INPUT;
                         }
                     | REG_CONSTFLOAT
                         {

dlls/d3dx9_36/tests/asm.c

@@ -1141,6 +1141,11 @@ static void ps_3_0_test(void) {
             {0xffff0300, 0x0500005d, 0x802f0000, 0x80e40001, 0x80e40002, 0x80e40003,
 	     0x80e40004, 0x0000ffff}
         },
+        {   /* shader 10 */
+            "ps_3_0\n"
+            "texkill v0\n",
+            {0xffff0300, 0x01000041, 0x900f0000, 0x0000ffff}
+        },
     };
 
     exec_tests("ps_3_0", tests, sizeof(tests) / sizeof(tests[0]));