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[LLVM][InstCombine] Extend masked_gather's demanded elt analysis.

llvm:instcombineCovers the InstCombine, InstSimplify and AggressiveInstCombine passesCovers the InstCombine, InstSimplify and AggressiveInstCombine passes

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 151732

#151732 In llvm/llvm-project;

· paulwalker-arm opened on Aug 1, 2025

[LLVM][InstCombine] foldICmpEquality: Compare APInt values rather than addresses.

llvm:instcombineCovers the InstCombine, InstSimplify and AggressiveInstCombine passesCovers the InstCombine, InstSimplify and AggressiveInstCombine passes

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 151726

#151726 In llvm/llvm-project;

· paulwalker-arm opened on Aug 1, 2025

Utils: Inhibit load/store folding through phis for llvm.protected.field.ptr.

llvm:instcombineCovers the InstCombine, InstSimplify and AggressiveInstCombine passesCovers the InstCombine, InstSimplify and AggressiveInstCombine passes

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 151649

#151649 In llvm/llvm-project;

· pcc opened on Aug 1, 2025

[InstSimplify] Canonicalize <code>X uge 1</code> to <code>X ne 0</code> and <code>X sle -1</code> to <code>X slt 0</code> in <code>simplifyICmpInst</code>

llvm:analysisIncludes value tracking, cost tables and constant foldingIncludes value tracking, cost tables and constant folding

llvm:instcombineCovers the InstCombine, InstSimplify and AggressiveInstCombine passesCovers the InstCombine, InstSimplify and AggressiveInstCombine passes

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 151642

#151642 In llvm/llvm-project;

· el-ev opened on Aug 1, 2025

[AArch64][InstCombine] Canonicalize whilelo intrinsic

backend:AArch64

llvm:instcombineCovers the InstCombine, InstSimplify and AggressiveInstCombine passesCovers the InstCombine, InstSimplify and AggressiveInstCombine passes

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 151553

#151553 In llvm/llvm-project;

· MDevereau opened on Jul 31, 2025

[InstCombine] Avoid foldCmpLoadFromIndexedGlobal for multi-use load

llvm:instcombineCovers the InstCombine, InstSimplify and AggressiveInstCombine passesCovers the InstCombine, InstSimplify and AggressiveInstCombine passes

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 151524

#151524 In llvm/llvm-project;

· nikic opened on Jul 31, 2025

[InstCombine] Incorrect fabs + nsz fold

llvm:instcombineCovers the InstCombine, InstSimplify and AggressiveInstCombine passesCovers the InstCombine, InstSimplify and AggressiveInstCombine passes

miscompilation

Status: Open.

Bug

#151303 In llvm/llvm-project;

· nikic opened on Jul 30, 2025

[InstCombine] Add additional known bits info for self multiply

llvm:instcombineCovers the InstCombine, InstSimplify and AggressiveInstCombine passesCovers the InstCombine, InstSimplify and AggressiveInstCombine passes

llvm:support

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 151202

#151202 In llvm/llvm-project;

· macsencasaus opened on Jul 29, 2025

[IR] Allow poison argument to lifetime markers

compiler-rt:sanitizer

llvm:analysisIncludes value tracking, cost tables and constant foldingIncludes value tracking, cost tables and constant folding

llvm:globalisel

llvm:instcombineCovers the InstCombine, InstSimplify and AggressiveInstCombine passesCovers the InstCombine, InstSimplify and AggressiveInstCombine passes

llvm:ir

llvm:SelectionDAGSelectionDAGISel as wellSelectionDAGISel as well

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 151148

#151148 In llvm/llvm-project;

· nikic opened on Jul 29, 2025

clang crashes at -O1 and above on x86_64-linux-gnu: Assertion `hasUseList()' failed

crash-on-valid

llvm:instcombineCovers the InstCombine, InstSimplify and AggressiveInstCombine passesCovers the InstCombine, InstSimplify and AggressiveInstCombine passes

regression

Status: Open.

Bug

#151119 In llvm/llvm-project;

· zhendongsu opened on Jul 29, 2025

[llvm] Optimize usub.sat fix for #79690

llvm:instcombineCovers the InstCombine, InstSimplify and AggressiveInstCombine passesCovers the InstCombine, InstSimplify and AggressiveInstCombine passes

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 151044

#151044 In llvm/llvm-project;

· nimit25 opened on Jul 28, 2025

Additional missing known bits info for x * x

llvm:instcombineCovers the InstCombine, InstSimplify and AggressiveInstCombine passesCovers the InstCombine, InstSimplify and AggressiveInstCombine passes

missed-optimization

Status: Open.

#151043 In llvm/llvm-project;

· ZERICO2005 opened on Jul 28, 2025