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Commits on Jun 9, 2025

• [X86] IsElementEquivalent - pull out exact matching for same index/op. (#143367)

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• [X86] avx512-scalar_mask.ll - remove old FIXME comments

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• [X86] Fold (add X, (srl Y, 7)) -> (sub X, (icmp_sgt 0, Y)) on vXi8 vectors (#143359)

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Commits on Jun 8, 2025

• [X86] Add test coverage for #143238

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• Revert "[X86] Fold (add X, (srl Y, 7)) -> (sub X, (ashr Y, 7)) on vXi8 vectors" (#143303)

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Commits on Jun 6, 2025

• [X86] IsElementEquivalent - pull out vector element count mismatch code. NFC.

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• [X86] combineConcatVectorOps - concat per-lane v2f64/v4f64 shuffles into vXf64 vshufpd (#143017)

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• [X86] Fold (add X, (srl Y, 7)) -> (sub X, (ashr Y, 7)) on vXi8 vectors (#143106)

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• [X86] getIntImmCostInst - recognise i64 ICMP EQ/NE special cases (#142812)

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Commits on Jun 5, 2025

• [X86] combineX86ShuffleChainWithExtract - ensure subvector widening is at index 0 (#143009)

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• [X86] combineTargetShuffle - canonicalize vperm2x128(x,x)/vperm2x128(undef,x) -> vperm2x128(x,undef)

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• [X86] combineConcatVectorOps - pull out repeated getConstantOperandAPInt calls for the same EXTRACT_SUBVECTOR indices. NFC.

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• [X86] combineAdd - fold (add (sub (shl x, c), y), z) -> (sub (add (shl x, c), z), y) (#142734)

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Commits on Jun 4, 2025

• [X86] splitVector - use collectConcatOps to find pre-split subvectors (#142774)

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• [X86] constant-hoisting-cmp.ll - regenerate test checks

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• [X86] Add test coverage for #62145

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• [X86] Add test coverage for #142513

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• [X86] IsElementEquivalent - add handling for X86ISD::VPERMI nodes. (#142767)

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• [X86] Add test coverage for #55714

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Commits on Jun 3, 2025

• [X86] Use SelectionDAG::getExtractSubvector/getInsertSubvector in X86 extractSubVector/insertSubVector helpers. NFC.

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• [X86] Reuse X86ISD::SUBV_BROADCAST_LOAD for subvector loads across chains (#142381)

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• [X86] combineConstantPoolLoads - correctly merge constant pool loads by pointer and chain (#139575)

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Commits on Jun 2, 2025

• [X86] combineTargetShuffle - attempt to fold VPERM2X128(ONEUSE(LOAD),UNDEF) -> VBROADCAST128 (#142366)

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• DXContainerTest.cpp - fix MSVC float truncation warning. NFC. (#142349)

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• AMDGPUCodeGenPrepare.cpp - fix MSVC operator precedence warning. NFC.

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Commits on Jun 1, 2025

• [X86] Move IsElementEquivalent above shuffle comparison helpers. NFC.

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Commits on May 30, 2025

• [X86] combineEXTRACT_SUBVECTOR - generalize extract_subvector(broadcast(x),c) fold with IsElementEquivalent (#141963)

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Commits on May 28, 2025

• [X86] X86FixupVectorConstantsPass - use scheduler model to avoid regressions (#140028)

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Commits on May 27, 2025

• [X86] combineTargetShuffle - fold (vzmovl (shift x, y)) -> (shift (vzmovl x), y) (#141579)

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• [X86] Add test coverage for #141475

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• [X86] combineTruncatedArithmetic - move more of fold inside combinei64TruncSrlConstant

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• [X86] combinei64TruncSrlConstant - sink EVT::getIntegerVT to ISD::ADD case only. NFC.

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Commits on May 25, 2025

• VPlanRecipes.cpp - fix "not all control paths return a value" MSVC warning

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• OffloadBundle.h - fix "not all control paths return a value" MSVC warning

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Commits on May 23, 2025

• [X86] vector-shuffle-combining-avx512bwvl.ll - regenerate test check

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