[llvm] [Transforms][NFC] Drop uses of BranchInst in headers (PR #186580)

[Nikita Popov via llvm-commits]

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@@ -3309,8 +3306,8 @@ void GVNPass::addDeadBlock(BasicBlock *BB) {
 //     dead blocks with "UndefVal" in an hope these PHIs will optimized away.
 //
 // Return true iff *NEW* dead code are found.
-bool GVNPass::processFoldableCondBr(BranchInst *BI) {
-  if (!BI || BI->isUnconditional())
+bool GVNPass::processFoldableCondBr(CondBrInst *BI) {
+  if (!BI)
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nikic wrote:

Can omit this check as well, it can't be null.

https://github.com/llvm/llvm-project/pull/186580