[llvm] [RFC][IR] Add llvm.masked.{udiv, sdiv, urem, srem} intrinsics (PR #189705)

[Luke Lau via llvm-commits]

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@@ -1618,6 +1618,14 @@ enum NodeType {
   LOOP_DEPENDENCE_WAR_MASK,
   LOOP_DEPENDENCE_RAW_MASK,
 
+  /// Masked vector arithmetic that returns poison on disabled lanes. Disabled
+  /// lanes do not have undefined behaviour on division by zero. The first two
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lukel97 wrote:

ffd9d6753fd1ac9e79fdfb4360bbb9023125c080

https://github.com/llvm/llvm-project/pull/189705