[llvm] SystemZ: Don't promote atomic store in IR (PR #90899)

[Matt Arsenault via llvm-commits]

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@@ -1,21 +1,33 @@
-; Test long double atomic stores. The atomic store is converted to i128 by
-; the AtomicExpand pass.
+; Test long double atomic stores. The atomic store is converted to i128
 ;
 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck -check-prefixes=CHECK,BASE %s
 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck -check-prefixes=CHECK,Z13 %s
 
 ; TODO: Is it worth testing softfp with vector?
 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mattr=+soft-float | FileCheck -check-prefixes=SOFTFP %s
 
+; TODO: Test soft float
+; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck -check-prefixes=CHECK,BASE %s
+; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck -check-prefixes=CHECK,Z13 %s
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arsenm wrote:

```suggestion
```

https://github.com/llvm/llvm-project/pull/90899