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      1 ; RUN: llc < %s -march=ppc64 | FileCheck %s
      2 
      3 define i64 @exchange_and_add(i64* %mem, i64 %val) nounwind {
      4 ; CHECK: exchange_and_add:
      5 ; CHECK: ldarx
      6   %tmp = atomicrmw add i64* %mem, i64 %val monotonic
      7 ; CHECK: stdcx.
      8   ret i64 %tmp
      9 }
     10 
     11 define i64 @exchange_and_cmp(i64* %mem) nounwind {
     12 ; CHECK: exchange_and_cmp:
     13 ; CHECK: ldarx
     14   %tmp = cmpxchg i64* %mem, i64 0, i64 1 monotonic
     15 ; CHECK: stdcx.
     16 ; CHECK: stdcx.
     17   ret i64 %tmp
     18 }
     19 
     20 define i64 @exchange(i64* %mem, i64 %val) nounwind {
     21 ; CHECK: exchange:
     22 ; CHECK: ldarx
     23   %tmp = atomicrmw xchg i64* %mem, i64 1 monotonic
     24 ; CHECK: stdcx.
     25   ret i64 %tmp
     26 }
     27 
     28 define void @atomic_store(i64* %mem, i64 %val) nounwind {
     29 entry:
     30 ; CHECK: @atomic_store
     31   store atomic i64 %val, i64* %mem release, align 64
     32 ; CHECK: ldarx
     33 ; CHECK: stdcx.
     34   ret void
     35 }
     36 
     37 define i64 @atomic_load(i64* %mem) nounwind {
     38 entry:
     39 ; CHECK: @atomic_load
     40   %tmp = load atomic i64* %mem acquire, align 64
     41 ; CHECK: ldarx
     42 ; CHECK: stdcx.
     43 ; CHECK: stdcx.
     44   ret i64 %tmp
     45 }
     46 
     47