[llvm] Apply the `AdjustICmpImmAndPred` optimization when it results in a one-instruction immediate materialization over a two-instruction materialization. (PR #83218)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,185 @@
+; RUN: llc -mtriple=aarch64-linux-gnu -global-isel=1 < %s | FileCheck %s
+
+; CHECK-NOT: movk
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arsenm wrote:

positive checks are better 

https://github.com/llvm/llvm-project/pull/83218