[llvm] [InstCombine] Avoid crash on aggregate types in SimplifyDemandedUseFPClass (PR #111128)

[Matt Arsenault via llvm-commits]

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@@ -91,6 +91,35 @@ define nofpclass(inf) float @ret_nofpclass_inf__ninf() {
   ret float 0xFFF0000000000000
 }
 
+; Basic aggregate tests to ensure this does not crash.
+define nofpclass(nan) { float } @ret_nofpclass_struct_ty() {
+; CHECK-LABEL: define nofpclass(nan) { float } @ret_nofpclass_struct_ty() {
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    ret { float } zeroinitializer
+;
+entry:
+  ret { float } zeroinitializer
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arsenm wrote:

Test double element and struct of vector 

https://github.com/llvm/llvm-project/pull/111128