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Commits on May 17, 2022

• [KnownBits] Add operator==

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Commits on Feb 6, 2022

• [KnownBits] Add support for X*X self-multiplication (update)

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  RKSimon

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Commits on Dec 20, 2021

• [Support] improve known bits analysis for leading zeros of multiply

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  rotateright

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Commits on Dec 8, 2021

• [Support] improve known bits analysis for multiply by power-of-2 (1 set bit)

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Commits on Dec 1, 2021

• [Support] replace check with assert in known bits of mul calculation; NFC

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Commits on Oct 4, 2021

• [APInt] Stop using soft-deprecated constructors and methods in llvm. NFC.

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Commits on Sep 7, 2021

• [KnownBits] Add support for X*X self-multiplication

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  RKSimon

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Commits on Apr 6, 2021

• [KnownBits] Rename KnownBits::computeForMul to KnownBits::mul. NFCI.

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Commits on Mar 31, 2021

• Add debug printers for KnownBits [nfc]

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Commits on Mar 19, 2021

• [KnownBits] Add knownbits analysis for mulhs/mulu 'multiply high' instructions

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  RKSimon

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Commits on Mar 8, 2021

• [KnownBits] Add min/max shift amount handling to shl/lshr/ashr KnownBits helpers

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Commits on Feb 24, 2021

• Revert rGd65ddca83ff85c7345fe9a0f5a15750f01e38420 - "[ValueTracking] ComputeKnownBits - minimum leading/trailing zero bits in LSHR/SHL (PR44526)"

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  RKSimon

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• [ValueTracking] ComputeKnownBits - minimum leading/trailing zero bits in LSHR/SHL (PR44526)

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Commits on Feb 22, 2021

• [KnownBits] Pull out repeated getMinValue() calls from shift analysis. NFCI.

  RKSimon

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Commits on Feb 21, 2021

• [KnownBits][RISCV] Improve known bits for srem.

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Commits on Jan 14, 2021

• [Support] Simplify KnownBits::sextInReg implementation.

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  RKSimon

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• [Support] Ensure KnownBits::sextInReg can handle the src == dst sext-in-reg case.

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• [Support] Simplify KnownBits::icmp helpers. NFC.

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Commits on Jan 4, 2021

• [Support] Add KnownBits::icmp helpers.

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Commits on Dec 4, 2020

• [DAG] Move SelectionDAG implementation to KnownBits::setInReg(). NFCI.

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Commits on Nov 13, 2020

• [KnownBits] Combine abs() implementations

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  nikic

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• [KnownBits] Merge the minimum shift amount and leading/trailing shift value bits handling.

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Commits on Nov 11, 2020

• [KnownBits] Add KnownBits::commonBits helper. NFCI.

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Commits on Nov 5, 2020

• [KnownBits] Move ValueTracking SREM KnownBits handling to KnownBits::srem. NFCI.

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  RKSimon

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• [KnownBits] Move ValueTracking/SelectionDAG UREM KnownBits handling to KnownBits::urem. NFCI.

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• [KnownBits] Move ValueTracking/SelectionDAG UDIV KnownBits handling to KnownBits::udiv. NFCI.

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Commits on Nov 4, 2020

• [KnownBits] KnownBits::computeForMul - avoid unnecessary APInt copies. NFCI.

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Commits on Nov 3, 2020

• [DAG] computeKnownBits - Move ISD::SRA handling into KnownBits::ashr

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• [DAG] computeKnownBits - Move (most) ISD::SRL handling into KnownBits::lshr

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  RKSimon

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• [DAG] computeKnownBits - Move (most) ISD::SHL handling into KnownBits::shl

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Commits on Oct 8, 2020

• [KnownBits] Add a computeForMul method

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Commits on Sep 9, 2020

• [KnownBits] Move SelectionDAG::computeKnownBits ISD::ABS handling to KnownBits::abs

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  RKSimon

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Commits on Sep 7, 2020

• [KnownBits] Avoid some copies (NFC)

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  nikic

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• [KnownBits] Implement accurate unsigned and signed max and min

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  jayfoad

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Commits on Apr 9, 2020

• [KnownBits] Move AND, OR and XOR logic into KnownBits

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