[llvm] [AArch64] Use isStrongerThanMonotonic. NFC (PR #161866)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-aarch64

Author: Craig Topper (topperc)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/161866.diff


1 Files Affected:

- (modified) llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp (+1-3) 


``````````diff
diff --git a/llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp b/llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp
index 96cc3f3cac91c..3e55b7620ebf9 100644
--- a/llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp
+++ b/llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp
@@ -2957,9 +2957,7 @@ bool AArch64InstructionSelector::select(MachineInstr &I) {
     AtomicOrdering Order = LdSt.getMMO().getSuccessOrdering();
 
     // Need special instructions for atomics that affect ordering.
-    if (Order != AtomicOrdering::NotAtomic &&
-        Order != AtomicOrdering::Unordered &&
-        Order != AtomicOrdering::Monotonic) {
+    if (isStrongerThanMonotonic(Order)) {
       assert(!isa<GZExtLoad>(LdSt));
       assert(MemSizeInBytes <= 8 &&
              "128-bit atomics should already be custom-legalized");

``````````

</details>


https://github.com/llvm/llvm-project/pull/161866