nikic

Nikita Popov nikic

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Red Hat
Berlin, Germany
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https://www.npopov.com/
@nikita_ppv
@nikic@mastodon.social

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llvm/llvm-project Public

The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.

LLVM 32.1k 13.3k
PHP-Parser Public

A PHP parser written in PHP

PHP 17.2k 1.1k
FastRoute Public

Fast request router for PHP

PHP 5.2k 451
scalar_objects Public

Extension that adds support for method calls on primitive types in PHP

PHP 1.1k 44
iter Public

Iteration primitives using generators

PHP 1.1k 70
PHP-Fuzzer Public

Experimental fuzzer for PHP libraries

PHP 421 18

4,062 contributions in the last year

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April 2025

Created 37 commits in 4 repositories

Created a pull request in llvm/llvm-project that received 10 comments

Apr 4

[LangRef] Update initializes definition

Specify the initializes attribute in terms of an "initialized" shadow state, such that: Loads prior to initialization return undef. Bytes that are…

+18 −4 lines changed • 10 comments

Opened 14 other pull requests in 2 repositories

llvm/llvm-project 2 open 9 merged 2 closed

[ObjC][ProvenanceEval] Only evaluate pointers
This contribution was made on Apr 23
[Intrinsics] Add support for range attributes
This contribution was made on Apr 14
release/20.x: [LLVM][MemCpyOpt] Unify alias tags if we optimize allocas (#129537)
This contribution was made on Apr 14
[CaptureTracking] Remove dereferenceable_or_null special case
This contribution was made on Apr 14
[SROA] Support load-only promotion with dynamic offset loads
This contribution was made on Apr 14
[SROA] Improve handling of lifetimes in load-only promotion
This contribution was made on Apr 11
[Verifier][CGP] Allow integer argument to dbg_declare
This contribution was made on Apr 8
[DebugInfo] Do not change #dbg_declare type during salvage
This contribution was made on Apr 7
[Clang] Always verify LLVM IR inputs
This contribution was made on Apr 4
[Verifier] Require that dbg.declare variable is a ptr
This contribution was made on Apr 4
[ADT] Make DenseMap::init() private (NFC)
This contribution was made on Apr 3
[CodeGen] Use pimpl idiom for CVTables (NFC)
This contribution was made on Apr 3
[CodeGen] Don't include CGDebugInfo.h in CodeGenFunction.h (NFC)
This contribution was made on Apr 2

llvm/llvm-test-suite 1 merged

Remove pre-compiled binaries
This contribution was made on Apr 4

Reviewed 153 pull requests in 5 repositories

llvm/llvm-project 25 pull requests

[LangRef] Clarify the behavior of select with FP poison-generating flags
This contribution was made on Apr 24
[InstCombine] Refactor the code for folding logicop and sext/zext
This contribution was made on Apr 24
[TSan, SanitizerBinaryMetadata] Analyze the capture status for alloca rather than arbitrary Addr
This contribution was made on Apr 24
[FunctionAttrs] Bail if initializes range overflows 64-bit signed int
This contribution was made on Apr 23
[TTI] Simplify implementation (NFCI)
This contribution was made on Apr 23
[JumpThreading] Do not unfold select if block has address taken and used
This contribution was made on Apr 23
[AA] Move Target Specific AA before BasicAA
This contribution was made on Apr 23
[InstCombine] Do not fold logical is_finite test
This contribution was made on Apr 23
[Reassociate] Invalidate analysis passes after canonicalizeOperands
This contribution was made on Apr 23
[CmpInstAnalysis] Decompose icmp eq (and x, C) C2
This contribution was made on Apr 23
[llvm] Add support for llvm IR atomicrmw fminimum/fmaximum instructions
This contribution was made on Apr 23
[InstCombine] Canonicalize max(min(X, MinC), MaxC) -> min(max(X, MaxC), MinC)
This contribution was made on Apr 23
[JumpThreading][GVN] Copy metadata when inserting preload into preds
This contribution was made on Apr 23
InstCombine: Fold samesign ult to slt with added constant when the range is known
This contribution was made on Apr 22
[InstCombine] Infer exact for lshr by cttz
This contribution was made on Apr 22
[IRCE] Fix '"Instruction does not dominate all uses!" after IRCE pass #63984'
This contribution was made on Apr 21
[X86][SATCVT] Reduce MIN/MAXSS/D by conversion instruction result
This contribution was made on Apr 20
[ConstraintElim] Fix poison check before adding intrinsic facts
This contribution was made on Apr 19
[Scalar] Avoid repeated hash lookups (NFC)
This contribution was made on Apr 19
[llvm] add gnu install dirs
This contribution was made on Apr 19
[Utils] Avoid repeated hash lookups (NFC)
This contribution was made on Apr 19
OMPIRBuilder: Avoid getNumUses
This contribution was made on Apr 18
OpenMPOpt: Avoid using getNumUses
This contribution was made on Apr 18
X86: Avoid using getNumUses
This contribution was made on Apr 18
NVPTX: Avoid getNumUses
This contribution was made on Apr 18
Some pull request reviews not shown.

fedora-llvm-team/llvm-snapshots 4 pull requests

Use 'success' property correctly
This contribution was made on Apr 24
Add missing --gitub-repo to collect-perf-results and run-perf-comparison commands
This contribution was made on Apr 24
Add performance entrypoint fns for run + collect
This contribution was made on Apr 13
Add link to "Teach/Ask AI" to each failed build comment
This contribution was made on Apr 11

krakjoe/apcu 3 pull requests

Update TECHNOTES to current state of sma layer
This contribution was made on Apr 17
Fix size of initial empty block in sma layer
This contribution was made on Apr 9
Fix computation of minimum fragment size
This contribution was made on Apr 2

dtcxzyw/llvm-opt-benchmark 3 pull requests

pre-commit: PR135609
This contribution was made on Apr 14
pre-commit: PR134712
This contribution was made on Apr 13
pre-commit: PR135382
This contribution was made on Apr 11

rust-lang/rust 1 pull request

Update the minimum external LLVM to 19
This contribution was made on Apr 3

Created an issue in llvm/llvm-project that received 2 comments

Apr 13

[ConstraintElim] Failure to eliminate cmp of usub.sat

https://alive2.llvm.org/ce/z/4ZG-nD define i1 @src(i64 %index, i64 %limit) { %precond = icmp ult i64 %index, %limit call void @llvm.assume(i1 %precond

2 comments

Opened 7 other issues in 3 repositories

llvm/llvm-project 5 open

[LLVMIR] Add support for captures attribute
This contribution was made on Apr 17
[Attributor] Support captures attribute
This contribution was made on Apr 14
[InstCombine] Missed shl + add + and optimization
This contribution was made on Apr 11
Use spirv backend in libclc
This contribution was made on Apr 11
Pre-merge checks for llvm-test-suite
This contribution was made on Apr 4

dtcxzyw/llvm-opt-benchmark 1 closed

Grep #132508
This contribution was made on Apr 20

rust-lang/rust 1 open

Consider using AssignmentTracking / dbg_assign
This contribution was made on Apr 10

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Nikita Popov nikic

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4,062 contributions in the last year

Contribution activity

April 2025

Created a pull request in llvm/llvm-project that received 10 comments

[LangRef] Update initializes definition

Created an issue in llvm/llvm-project that received 2 comments

[ConstraintElim] Failure to eliminate cmp of usub.sat

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