s390.md: Add a splitter for NOT rtx.
2014-04-11 Andreas Krebbel <Andreas.Krebbel@de.ibm.com> * config/s390/s390.md: Add a splitter for NOT rtx. From-SVN: r209295
This commit is contained in:
parent
8f0ad2e592
commit
3c91f126f4
|
@ -1,3 +1,7 @@
|
|||
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
|
||||
|
|
|
@ -7001,6 +7001,21 @@
|
|||
""
|
||||
"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).
|
||||
;
|
||||
|
|
Loading…
Reference in New Issue