Search results

[InstCombine] Fold <code>lshr -&gt; zext -&gt; shl</code> patterns

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 147737

#147737 In llvm/llvm-project;

· zGoldthorpe opened on Jul 9, 2025

[InstCombine] foldOpIntoPhi should apply to icmp with non-constant operand

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

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 147676

#147676 In llvm/llvm-project;

· rkirsling opened on Jul 9, 2025

[InstCombine] Optimize (select %x, op(%x), 0) to op(%x) for operations where op(0) == 0

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

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 147605

#147605 In llvm/llvm-project;

· bababuck opened on Jul 8, 2025

[InstCombine] Decompose constant xor operand if possible

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

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 147599

#147599 In llvm/llvm-project;

· sgundapa opened on Jul 8, 2025

[InstCombine] Fold umul.overflow(x, c1) | (x*c1 &gt; c2) to x &gt; c2/c1

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

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 147327

#147327 In llvm/llvm-project;

· mskamp opened on Jul 7, 2025

[InstCombine] Merge one-use GEP offsets during expansion

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

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 147263

#147263 In llvm/llvm-project;

· nikic opened on Jul 7, 2025

Match the inverse of m_AddOverflow

backend:AArch64

backend:X86

llvm:codegen

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

llvm:ir

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 147215

#147215 In llvm/llvm-project;

· AZero13 opened on Jul 6, 2025

[InstCombine] fold icmp of select with constants and invertible op

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

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 147182

#147182 In llvm/llvm-project;

· Acthinks opened on Jul 6, 2025

[InstCombine] Add limit for expansion of gep chains

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

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 147065

#147065 In llvm/llvm-project;

· nikic opened on Jul 4, 2025

[InstCombine] Move extends across identity shuffles.

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

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 146901

#146901 In llvm/llvm-project;

· fhahn opened on Jul 3, 2025

[InstCombine] Fold icmp of gep chains

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

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 146714

#146714 In llvm/llvm-project;

· nikic opened on Jul 2, 2025

[InstCombine] Missed optimization for icmp of select with constants and invertible binop

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

missed-optimization

Status: Open.

#146642 In llvm/llvm-project;

· nikic opened on Jul 2, 2025