[llvm] [ctx_prof] Handle `select` and its `step` instrumentation (PR #109185)

[David Li via llvm-commits]

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@@ -2211,7 +2211,15 @@ remapIndices(Function &Caller, BasicBlock *StartBB,
     }
     for (auto &I : llvm::make_early_inc_range(*BB)) {
       if (auto *Inc = dyn_cast<InstrProfIncrementInst>(&I)) {
-        if (Inc != BBID) {
+        if (isa<InstrProfIncrementInstStep>(Inc)) {
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david-xl wrote:

Add a comment for this change?

https://github.com/llvm/llvm-project/pull/109185