[llvm] [LLVM][AArch64ISelLowering] Optimize sign bit tests with TST instruction for SIGN_EXTEND patterns (PR #158061)

guan jian via llvm-commits llvm-commits at lists.llvm.org
Fri Sep 12 00:13:38 PDT 2025


https://github.com/rez5427 edited https://github.com/llvm/llvm-project/pull/158061


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