[llvm] [LoopVectorize] LLVM fails to vectorise loops with multi-bool varables (PR #89226)

[Dinar Temirbulatov via llvm-commits]

================
@@ -1045,6 +1060,23 @@ bool LoopVectorizationLegality::canVectorizeInstrs() {
     }
   }
 
+  // Make sure that all compare instruction users are recurrent if in loop's BB.
+  if (MultiCmpsRed.size() > 0) {
----------------
dtemirbulatov wrote:

There might be other kind of reduction and compare instruction with multipe users, I have seen such a case. I think I will add a test for this case.

https://github.com/llvm/llvm-project/pull/89226