This patch moves the below instructions to decodetree specification: {add, subf}[c,e,me,ze][o][.] : XO-form addic[.], subfic : D-form addex : Z23-form This patch introduces XO form instructions into decode tree specification, for which all the four variations([o][.]) have been handled with a single pattern. The changes were verified by validating that the tcg ops generated by those instructions remain the same, which were captured with the '-d in_asm,op' flag. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com> Signed-off-by: Chinmay Rath <rathc@linux.ibm.com> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>