[llvm] [AMDGPU] expand-fp: Change frem expansion criterion (PR #158285)

[Matt Arsenault via llvm-commits]

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@@ -423,7 +423,7 @@ AMDGPUTargetLowering::AMDGPUTargetLowering(const TargetMachine &TM,
   setOperationAction({ISD::LRINT, ISD::LLRINT}, {MVT::f16, MVT::f32, MVT::f64},
                      Expand);
 
-  setOperationAction(ISD::FREM, {MVT::f16, MVT::f32, MVT::f64}, Expand);
+  setOperationAction(ISD::FREM, {MVT::f16, MVT::f32, MVT::f64}, LibCall);
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arsenm wrote:

Expand is the correct action. Every other target should be using LibCall. I.e. change the default action to Libcall. This is another stalled migration, Expand should imply emit standalone code that doesn't depend on a function 

https://github.com/llvm/llvm-project/pull/158285