[llvm] [SSAUpdaterBulk] Fix incorrect live-in values for a block. (PR #131762)

[Matt Arsenault via llvm-commits]

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@@ -236,7 +236,7 @@ TEST(SSAUpdaterBulk, SingleBBLoop) {
   Loop->dump();
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arsenm wrote:

Can you remove the new headers you added, I think fatal error cases now

https://github.com/llvm/llvm-project/pull/131762