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; RUN: llc < %s -march=ppc64 | FileCheck %s
define i64 @exchange_and_add(i64* %mem, i64 %val) nounwind {
; CHECK: exchange_and_add:
; CHECK: ldarx
%tmp = atomicrmw add i64* %mem, i64 %val monotonic
; CHECK: stdcx.
ret i64 %tmp
}
define i64 @exchange_and_cmp(i64* %mem) nounwind {
; CHECK: exchange_and_cmp:
; CHECK: ldarx
%tmp = cmpxchg i64* %mem, i64 0, i64 1 monotonic
; CHECK: stdcx.
; CHECK: stdcx.
ret i64 %tmp
}
define i64 @exchange(i64* %mem, i64 %val) nounwind {
; CHECK: exchange:
; CHECK: ldarx
%tmp = atomicrmw xchg i64* %mem, i64 1 monotonic
; CHECK: stdcx.
ret i64 %tmp
}
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