[llvm] [LLVM][AArch64] Optimize sign bit tests with TST instruction for SIGN_EXTEND patterns (PR #158061)
David Green via llvm-commits
llvm-commits at lists.llvm.org
Fri Sep 12 04:25:21 PDT 2025
https://github.com/davemgreen commented:
Thanks for the patch. Looks like a nice optimization. It might be worth giving it a test to make sure it is producing the expected results, a boot strap or the llvm-test-suite can be a decent way to test it.
https://github.com/llvm/llvm-project/pull/158061
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