+2014-04-11 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
+
+ * config/s390/s390.md: Add a splitter for NOT rtx.
+
2014-04-11 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/60663
""
"s390_expand_logical_operator (XOR, <MODE>mode, operands); DONE;")
+; Combine replaces (xor (x) (const_int -1)) with (not (x)) when doing
+; simplifications. So its better to have something matching.
+(define_split
+ [(set (match_operand:INT 0 "nonimmediate_operand" "")
+ (not:INT (match_operand:INT 1 "nonimmediate_operand" "")))]
+ ""
+ [(parallel
+ [(set (match_dup 0) (xor:INT (match_dup 1) (match_dup 2)))
+ (clobber (reg:CC CC_REGNUM))])]
+{
+ operands[2] = constm1_rtx;
+ if (!s390_logical_operator_ok_p (operands))
+ FAIL;
+})
+
;
; xordi3 instruction pattern(s).
;