Recognize bit-manipulation idioms and emit bzhi/bts/btc/btr/bt on xarch#130481

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tannergooding:tannergooding-jit-recognize-bit-manipulation-patterns

Commits on Jul 10, 2026

Recognize bit-manipulation idioms and emit bzhi/bts/btc/btr on xarch

tannergooding
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Recognize (x >> y) & 1 as a bit test and emit bt on xarch

tannergooding
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Apply formatting patch
tannergooding
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Potential fix for pull request finding

tannergooding
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Copilot
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Mask the bzhi index to preserve C# masked-shift semantics

tannergooding
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Widen SingleBit FileCheck register patterns to match r8-r15

tannergooding
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Drop the over-strict bit-op target/index assert and match either immediate form

tannergooding
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Bail bzhi lowering on a constant bit index to honor the variable-index contract

tannergooding
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