[llvm] [InstCombine] Fold ((cst << x) & 1) --> x == 0 when cst is odd (PR #79772)

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https://github.com/elhewaty edited https://github.com/llvm/llvm-project/pull/79772

Previous message: [llvm] [InstCombine] Fold ((cst << x) & 1) --> x == 0 when cst is odd (PR #79772)
Next message: [flang] [mlir] [lldb] [libcxxabi] [llvm] [clang-tools-extra] [libcxx] [libc] [clang] [lld] [compiler-rt] [mlir][complex] Prevent underflow in complex.abs (PR #76316)
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