[llvm] Add a pass to convert jump tables to switches. (PR #77709)

[Nikita Popov via llvm-commits]

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@@ -557,6 +558,7 @@ PassBuilder::buildFunctionSimplificationPipeline(OptimizationLevel Level,
 
   // Optimize based on known information about branches, and cleanup afterward.
   FPM.addPass(JumpThreadingPass());
+  FPM.addPass(JumpTableToSwitchPass());
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nikic wrote:

The JumpThreading and CVP passes must be directly next to each other. You are going to invalidate LVI if JumpTableToSwitch does a transform.

https://github.com/llvm/llvm-project/pull/77709