[llvm] [SimplifyCFG] Update profile metadata regardless of weight count (PR #190982)

[Aiden Grossman via llvm-commits]

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@@ -3699,7 +3699,7 @@ class SwitchInstProfUpdateWrapper {
   SwitchInstProfUpdateWrapper(SwitchInst &SI) : SI(SI) { init(); }
 
   ~SwitchInstProfUpdateWrapper() {
-    if (Changed && Weights.has_value() && Weights->size() >= 2)
+    if (Changed && Weights.has_value())
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boomanaiden154 wrote:

Ah, it still does get set, I was just looking through `getBranchWeightMDNode` which folds everything without the minimum number of operands to `nullptr`.

https://github.com/llvm/llvm-project/pull/190982