; RUN: llc < %s -march=ppc32 | FileCheck %s | |
define i32 @exchange_and_add(i32* %mem, i32 %val) nounwind { | |
; CHECK: exchange_and_add: | |
; CHECK: lwarx | |
%tmp = atomicrmw add i32* %mem, i32 %val monotonic | |
; CHECK: stwcx. | |
ret i32 %tmp | |
} | |
define i32 @exchange_and_cmp(i32* %mem) nounwind { | |
; CHECK: exchange_and_cmp: | |
; CHECK: lwarx | |
%tmp = cmpxchg i32* %mem, i32 0, i32 1 monotonic | |
; CHECK: stwcx. | |
; CHECK: stwcx. | |
ret i32 %tmp | |
} | |
define i32 @exchange(i32* %mem, i32 %val) nounwind { | |
; CHECK: exchange: | |
; CHECK: lwarx | |
%tmp = atomicrmw xchg i32* %mem, i32 1 monotonic | |
; CHECK: stwcx. | |
ret i32 %tmp | |
} |