Search results

[InstCombine] Make strlen optimization more resilient to different gep types.

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 153623

#153623 In llvm/llvm-project;

· davemgreen opened on Aug 14, 2025

[InstCombine] Fold integer unpack/repack patterns through ZExt

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

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 153583

#153583 In llvm/llvm-project;

· zGoldthorpe opened on Aug 14, 2025

[InstComb] Allow more user for (add (ptrtoint %B), %O) to GEP transform.

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

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 153566

#153566 In llvm/llvm-project;

· fhahn opened on Aug 14, 2025

[InstComb] Fold inttoptr (add (ptrtoint %B), %O) -> GEP for ICMP users.

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

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 153421

#153421 In llvm/llvm-project;

· fhahn opened on Aug 13, 2025

[InstCombine] When canoncicalizing clamp like, also consider certain sgt/slt cases

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

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 153240

#153240 In llvm/llvm-project;

· bababuck opened on Aug 12, 2025

Reapply "[WebAssembly] Constant fold wasm.dot"

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 153070

#153070 In llvm/llvm-project;

· badumbatish opened on Aug 11, 2025

[InstCombine] Canonicalize signed saturated additions

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

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 153053

#153053 In llvm/llvm-project;

· AZero13 opened on Aug 11, 2025

Missed fold: <code>x == c || (c + 1 &lt;= x &amp;&amp; x &lt;= c2)</code> =&gt; <code>(c &lt;= x &amp;&amp; x &lt;= c2)</code>

good first issuehttps://github.com/llvm/llvm-project/contributehttps://github.com/llvm/llvm-project/contribute

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

missed-optimization

Status: Open.

#152948 In llvm/llvm-project;

· Kmeakin opened on Aug 11, 2025

Missed optimization: (x &amp; -2^C) -1 &amp; -2^C + 2^C -&gt; x &amp; -2^C

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

missed-optimization

Status: Open.

#152804 In llvm/llvm-project;

· zxt5 opened on Aug 8, 2025

Missed optimization: (x + y) &amp; (2^C) -&gt; x &amp; 2^C when y % 2^(C+1) == 0

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

missed-optimization

Status: Open.

#152797 In llvm/llvm-project;

· zxt5 opened on Aug 8, 2025

Missed optimization: max(max(x&lt;&lt;C1, x+C2), C3) -&gt; max(x&lt;&lt;C1, C3) when C2 &lt;= (2^C1-1)/2^C1*C3

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

missed-optimization

Status: Open.

#152788 In llvm/llvm-project;

· zxt5 opened on Aug 8, 2025

[InstCombine] Fold icmp eq A, 0 | icmp ult B, sub 0, A to overflow

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

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 152762

#152762 In llvm/llvm-project;

· AZero13 opened on Aug 8, 2025