[llvm] [AArch64] Normalize (bool CC 1) to (bool NewCC 0) in LowerBR_CC (PR #189380)

[Valeriy Savchenko via llvm-commits]

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SavchenkoValeriy wrote:

I added this check as a separate commit and modified the test to demonstrate an original regression I was solving with it.

https://github.com/llvm/llvm-project/pull/189380