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      1 ; RUN: opt < %s | opt -S | FileCheck %s
      2 ; RUN: verify-uselistorder %s
      3 ; Basic smoke test for atomic operations.
      4 
      5 define void @f(i32* %x) {
      6   ; CHECK: load atomic i32, i32* %x unordered, align 4
      7   load atomic i32, i32* %x unordered, align 4
      8   ; CHECK: load atomic volatile i32, i32* %x syncscope("singlethread") acquire, align 4
      9   load atomic volatile i32, i32* %x syncscope("singlethread") acquire, align 4
     10   ; CHECK: load atomic volatile i32, i32* %x syncscope("agent") acquire, align 4
     11   load atomic volatile i32, i32* %x syncscope("agent") acquire, align 4
     12   ; CHECK: store atomic i32 3, i32* %x release, align 4
     13   store atomic i32 3, i32* %x release, align 4
     14   ; CHECK: store atomic volatile i32 3, i32* %x syncscope("singlethread") monotonic, align 4
     15   store atomic volatile i32 3, i32* %x syncscope("singlethread") monotonic, align 4
     16   ; CHECK: store atomic volatile i32 3, i32* %x syncscope("workgroup") monotonic, align 4
     17   store atomic volatile i32 3, i32* %x syncscope("workgroup") monotonic, align 4
     18   ; CHECK: cmpxchg i32* %x, i32 1, i32 0 syncscope("singlethread") monotonic monotonic
     19   cmpxchg i32* %x, i32 1, i32 0 syncscope("singlethread") monotonic monotonic
     20   ; CHECK: cmpxchg i32* %x, i32 1, i32 0 syncscope("workitem") monotonic monotonic
     21   cmpxchg i32* %x, i32 1, i32 0 syncscope("workitem") monotonic monotonic
     22   ; CHECK: cmpxchg volatile i32* %x, i32 0, i32 1 acq_rel acquire
     23   cmpxchg volatile i32* %x, i32 0, i32 1 acq_rel acquire
     24   ; CHECK: cmpxchg i32* %x, i32 42, i32 0 acq_rel monotonic
     25   cmpxchg i32* %x, i32 42, i32 0 acq_rel monotonic
     26   ; CHECK: cmpxchg weak i32* %x, i32 13, i32 0 seq_cst monotonic
     27   cmpxchg weak i32* %x, i32 13, i32 0 seq_cst monotonic
     28   ; CHECK: atomicrmw add i32* %x, i32 10 seq_cst
     29   atomicrmw add i32* %x, i32 10 seq_cst
     30   ; CHECK: atomicrmw volatile xchg  i32* %x, i32 10 monotonic
     31   atomicrmw volatile xchg i32* %x, i32 10 monotonic
     32   ; CHECK: atomicrmw volatile xchg  i32* %x, i32 10 syncscope("agent") monotonic
     33   atomicrmw volatile xchg i32* %x, i32 10 syncscope("agent") monotonic
     34   ; CHECK: fence syncscope("singlethread") release
     35   fence syncscope("singlethread") release
     36   ; CHECK: fence seq_cst
     37   fence seq_cst
     38   ; CHECK: fence syncscope("device") seq_cst
     39   fence syncscope("device") seq_cst
     40   ret void
     41 }
     42