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[DAG] Reassociate (add (add X, Y), X) --> add(add(X, X), Y)

Status: Draft (not ready).

llvm/llvm-projectnumber 162242

#162242 In llvm/llvm-project;

· RKSimon opened on Oct 7, 2025

[DAG] visitFREEZE - nodes that allow multiple frozen operands should directly freeze all operands

Status: Draft (not ready).

llvm/llvm-projectnumber 160914

#160914 In llvm/llvm-project;

· RKSimon opened on Sep 26, 2025

[DAG] ComputeNumSignBits - add ISD::SCMP/UCMP handling

Status: Draft (not ready).

llvm/llvm-projectnumber 153805

#153805 In llvm/llvm-project;

· RKSimon opened on Aug 15, 2025

[DAG] ComputeNumSignBits - use computeKnownBits instead of isConstOrConstSplat to detect legalised constants

Status: Draft (not ready).

llvm/llvm-projectnumber 152991

#152991 In llvm/llvm-project;

· RKSimon opened on Aug 11, 2025

[WIP][DAG] visitFREEZE - always allow freezing multiple operands

Status: Draft (not ready).

llvm/llvm-projectnumber 152107

#152107 In llvm/llvm-project;

· RKSimon opened on Aug 5, 2025

[WIP][TTI] Refactor improveShuffleKindFromMask to match the pattern order of getInstructionCost

Status: Draft (not ready).

llvm/llvm-projectnumber 151984

#151984 In llvm/llvm-project;

· RKSimon opened on Aug 4, 2025

[DAG] combineVSelectWithAllOnesOrZeros - convert "select(setgt lhs, -1), 1, -1" match to SDPatternMatch. NFC.

backend:AArch64

llvm:SelectionDAGSelectionDAGISel as wellSelectionDAGISel as well

Status: Draft (not ready).

llvm/llvm-projectnumber 146842

#146842 In llvm/llvm-project;

· RKSimon opened on Jul 3, 2025

[X86][VBMI2] Try to lower shuffle as VSHLDI instructions

Status: Draft (not ready).

llvm/llvm-projectnumber 145324

#145324 In llvm/llvm-project;

· RKSimon opened on Jun 23, 2025

[WIP][RFC][X86] Remove MOVSS/D -> BLENDPS/D conversions from DAG/ISEL

Status: Draft (not ready).

llvm/llvm-projectnumber 144338

#144338 In llvm/llvm-project;

· RKSimon opened on Jun 16, 2025

[X86] SimplifyDemandedBitsForTargetNode - add handling for X86ISD::FAND/FOR

backend:X86

Status: Open (in progress).

llvm/llvm-projectnumber 136618

#136618 In llvm/llvm-project;

· RKSimon opened on Apr 21, 2025

[DAG] isKnownNeverZero - add DemandedElts element mask to isKnownNeverZero calls.

Status: Draft (not ready).

llvm/llvm-projectnumber 135951

#135951 In llvm/llvm-project;

· RKSimon opened on Apr 16, 2025

[WIP][X86] combineX86ShufflesRecursively - attempt to combine shuffles with larger types from EXTRACT_SUBVECTOR nodes

Status: Draft (not ready).

llvm/llvm-projectnumber 133947

#133947 In llvm/llvm-project;

· RKSimon opened on Apr 1, 2025