Hi,
The attached patch fixes PR 81821. It is the same as the patch
proposed in the PR. I have briefly checked it in a private application
that uses atomic variables and I think it's rather obvious.
I have added atomics support on RX in GCC 7 and that was an initial
bug. Thus I'd like to also apply it to the GCC 7 branch.
OK for trunk and GCC 7?
Cheers,
Oleg
gcc/ChangeLog:
* config/rx/rx.md (BW): New mode attribute.
(sync_lock_test_and_setsi): Add mode suffix to insn output.Index: gcc/config/rx/rx.md
===================================================================
--- gcc/config/rx/rx.md (revision 256385)
+++ gcc/config/rx/rx.md (working copy)
@@ -2167,6 +2167,7 @@
[(plus "add") (minus "sub") (ior "ior") (xor "xor") (and "and")])
(define_mode_iterator QIHI [QI HI])
+(define_mode_attr BW [(QI "B") (HI "W")])
(define_insn "sync_lock_test_and_setsi"
[(set (match_operand:SI 0 "register_operand" "=r,r")
@@ -2208,7 +2209,7 @@
(set (match_dup 1)
(match_operand:QIHI 2 "register_operand" "0"))]
""
- "xchg\t%1, %0"
+ "xchg\t%1.<BW>, %0"
[(set_attr "length" "6")
(set_attr "timings" "22")]
)
