1`
#111284

Merged

[CodeGenPrepare] Convert `ctpop(X) ==/!= 1` into `ctpop(X) u</u> 2/1` #111284

dtcxzyw merged 5 commits into llvm:main from dtcxzyw:perf/is-power2-nonzero

dtcxzyw requested a review from

arsenm 1 year ago

dtcxzyw requested a review from

nikic 1 year ago

dtcxzyw requested a review from

RKSimon 1 year ago

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topperc 1 year ago

dtcxzyw requested a review from

goldsteinn 1 year ago

llvmbot added backend:AArch64

llvmbot added backend:X86

dtcxzyw requested a review from

efriedma-quic 1 year ago

goldsteinn commented on 2024-10-06

goldsteinn approved these changes on 2024-10-06

arsenm commented on 2024-10-07

arsenm approved these changes on 2024-10-10

[CodeGenPrepare] Add pre-commit tests. NFC.

9449548d

[CodeGenPrepare] Convert `ctpop(X) ==/!= 1 -> ctpop(X) u</u> 2/1`

bf11b6d3

[CodeGenPrepare] Use `isKnownNonZero`

2e810b51

[CodeGenPrepare] Check if it is profitable for the target

7357e3a3

[CodeGenPrepare] Remove target cost checks

fb33033a

dtcxzyw force pushed to fb33033a 1 year ago

dtcxzyw merged e3894f58 into main 1 year ago

dtcxzyw deleted the perf/is-power2-nonzero branch 1 year ago

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arsenm

goldsteinn

nikic

RKSimon

topperc

efriedma-quic

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backend:AArch64 backend:X86

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llvm-project [CodeGenPrepare] Convert `ctpop(X) ==/!= 1` into `ctpop(X) u</u> 2/1` #111284 Merged

[CodeGenPrepare] Convert `ctpop(X) ==/!= 1` into `ctpop(X) u</u> 2/1` #111284

llvm-project
[CodeGenPrepare] Convert `ctpop(X) ==/!= 1` into `ctpop(X) u</u> 2/1`
#111284

Merged