Fix DEBUG_TCGV compile error.

Don't call TCGV_LOW on arg2.  This section of code falls under
Signed-off-by: NNathan Froyd <froydnj@codesourcery.com>
Acked-by: NLaurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6585 c046a42c-6fe2-441c-8c8c-71466251a162

tcg/tcg-op.h

@@ -654,7 +654,7 @@ static inline void tcg_gen_ld8s_i64(TCGv_i64 ret, TCGv_ptr arg2,
 static inline void tcg_gen_ld16u_i64(TCGv_i64 ret, TCGv_ptr arg2,
                                      tcg_target_long offset)
 {
-    tcg_gen_ld16u_i32(TCGV_LOW(ret), TCGV_LOW(arg2), offset);
+    tcg_gen_ld16u_i32(TCGV_LOW(ret), arg2, offset);
     tcg_gen_movi_i32(TCGV_HIGH(ret), 0);
 }