llvm-project good first issues (LLVM)

[X86][AVX512] improve llvm.fptoui.sat avx512dq codegen about 4 hours ago

good first issue backend:X86 missed-optimization floating-point

llvm/llvm-project

39.1K

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

LLVM

[CIR][AMDGPU] Implement the remaining AMDGPU target builtins in CIRGen about 5 hours ago

good first issue backend:AMDGPU ClangIR

llvm/llvm-project

39.1K

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

LLVM

[LLDB] Swig python extensions are missing test coverage about 17 hours ago

good first issue lldb test-suite

llvm/llvm-project

39.1K

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

LLVM

[GlobalISel] (and (zext x), mask) is not relaxed to (and (anyext x), mask) 1 day ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

[X86] improve llvm.experimental.vector.histogram codegen on avx512dq+avx512cd+avx512vpopcntdq 1 day ago

good first issue backend:X86 missed-optimization

llvm/llvm-project

39.1K

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

LLVM

[AMDGPU][GlobalISel] <2 x i64> udiv/urem with 32-bit operands uses the full 64-bit expansion 1 day ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

[AMDGPU][GlobalISel] Constant shift amounts of split packed 16-bit shifts are not folded after RegBankLegalize 2 days ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

-ast-print of an extern-C declaration skips closing semi-colon 2 days ago

good first issue clang:frontend confirmed

llvm/llvm-project

39.1K

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

LLVM

[Clang] Explain satisfaction failure for more type traits 3 days ago

good first issue clang:frontend clang:diagnostics

llvm/llvm-project

39.1K

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

LLVM

noexcept specifiers are evaluated incorrectly 3 days ago

good first issue c++11 clang:frontend bugzilla need-regression-test

llvm/llvm-project

39.1K

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

LLVM

[clang] Bogus error about converting pointer to void* when using `void*` constant parameter/NTTP and a generic lambda 3 days ago

good first issue clang:frontend rejects-valid need-regression-test

llvm/llvm-project

39.1K

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

LLVM

[X86][AVX512] lower modf to avx512 vreduce 3 days ago

good first issue backend:X86 missed-optimization floating-point

llvm/llvm-project

39.1K

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

LLVM

[libc][docs][POSIX] flush out documentation for the POSIX defined headers 3 days ago

documentation good first issue libc

llvm/llvm-project

39.1K

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

LLVM

[X86][AVX512] lower frexp with avx512 4 days ago

good first issue backend:X86 missed-optimization floating-point

llvm/llvm-project

39.1K

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

LLVM

[GlobalISel] Narrowed multiply materializes every carry with v_cndmask instead of chaining them through add-with-carry 4 days ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

[AMDGPU][GlobalISel] f16 -> i8 fptosi/fptoui goes through f32 on targets with 16-bit insts 5 days ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

[AArch64] DBG_VALUE at successor entry prevents post-index store formation 5 days ago

good first issue backend:AArch64 missed-optimization

llvm/llvm-project

39.1K

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

LLVM

[MLIR][affine] Proper handling of vector load / stores in Affine dialect and transformations 5 days ago

good first issue mlir:affine

llvm/llvm-project

39.1K

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

LLVM

-Wdangling-field detects view members initalized from a by-value owner parameter 6 days ago

good first issue clang:temporal-safety

llvm/llvm-project

39.1K

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

LLVM

#pragma init_seg(section-specifier, func-name) not supported 6 days ago

good first issue clang:frontend platform:windows extension:microsoft

llvm/llvm-project

39.1K

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

LLVM

[libc] Request for Annex K via `__STDC_WANT_LIB_EXT1__` doesn't work as expected 6 days ago

good first issue libc

llvm/llvm-project

39.1K

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

LLVM

[AMDGPU][GlobalISel] v_perm_b32 is not formed from or of byte-selecting operations 6 days ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

[flang] -funsigned: SELECT CASE reports a false conflict when a case value exceeds the signed maximum 6 days ago

good first issue flang:frontend

llvm/llvm-project

39.1K

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

LLVM

typeof rejects initialiser expression 6 days ago

good first issue clang:frontend bugzilla rejects-valid need-regression-test

llvm/llvm-project

39.1K

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

LLVM

[InstCombine] `log(exp10(y))` -> `y*log(10)` missing for `llvm.exp10` intrinsic argument 7 days ago

good first issue llvm:instcombine missed-optimization floating-point

llvm/llvm-project

39.1K

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

LLVM

[clang] Missing diagnostic location for ext_vector_type in templates 8 days ago

good first issue clang:frontend

llvm/llvm-project

39.1K

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

LLVM

Unnecessary vector type produces wrong ll parser error 8 days ago

good first issue bugzilla llvm:core

llvm/llvm-project

39.1K

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

LLVM

[WebAssembly] simd-intrinsics.ll and memory-interleave.ll fail to regenerate CHECKS 8 days ago

good first issue backend:WebAssembly testing-tools

llvm/llvm-project

39.1K

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

LLVM

Error when explicitly specifying return type of generic lambda in constraint? 9 days ago

good first issue clang:frontend concepts lambda need-regression-test

llvm/llvm-project

39.1K

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

LLVM

[libc][math] Add missing isnan variants for float16, bfloat16, and float128 9 days ago

good first issue libc

llvm/llvm-project

39.1K

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

LLVM

[AMDGPU][GlobalISel] No known bits for llvm.amdgcn.mul.u24 / mul.i24 10 days ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

[AMDGPU][GlobalISel] uchar_to_float combine turns legal uitofp i16 -> f16 into cvt_f32_ubyte0 + fptrunc 10 days ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

[AArch64] umulo-128-legalisation-lowering.ll fails to regenerate 10 days ago

good first issue backend:AArch64

llvm/llvm-project

39.1K

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

LLVM

[GlobalISel] udiv x, (shl pow2, y) is not folded to a right shift 10 days ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

[Analysis] Merge X86 + LoongArch CostKindCosts structs into a generic implementation 10 days ago

good first issue llvm:analysis

llvm/llvm-project

39.1K

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

LLVM

[AMDGPU][GlobalISel] Unmerge of an sgpr->vgpr copy of a 64-bit constant is not split into 32-bit constants 11 days ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

Implement signal-related functions 11 days ago

good first issue libc

llvm/llvm-project

39.1K

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

LLVM

[InstCombine] SimplifyDemandedBits - add basic bitcast handling 13 days ago

good first issue llvm:instcombine

llvm/llvm-project

39.1K

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

LLVM

[AMDGPU][GlobalISel] 64-bit sdiv/srem with enough sign bits uses the full 64-bit expansion 13 days ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

[GlobalISel] urem x, (shl pow2, y) is not folded to a mask unless pow2 is 1 14 days ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

[GlobalISel][MachineVerifier] Reject float types on G_TRUNC / G_ANYEXT 14 days ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

[AMDGPU][GlobalISel] Uniform branch on (xor cond, 1) is not folded into the scc compare 14 days ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

[AMDGPU][GlobalISel] Redundant mask before G_AMDGPU_CVT_F32_UBYTEn is not removed 14 days ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

[AMDGPU][GlobalISel] 64-bit shl whose result fits in 32 bits is not narrowed 14 days ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

[AMDGPU][GlobalISel] Constants used only by divergent phis are materialized in SGPRs 14 days ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

[KnownBits] Tighten division bounds if the division is exact 14 days ago

good first issue llvm:support

llvm/llvm-project

39.1K

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

LLVM

[clang-tidy] llvm-header-guard suggest invalid ifdef macros name 14 days ago

good first issue clang-tidy false-positive

llvm/llvm-project

39.1K

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

LLVM

[X86] Recognise VPMADD52L/H patterns on AVX512IFMA/AVXIFMA targets 14 days ago

good first issue backend:X86 missed-optimization

llvm/llvm-project

39.1K

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

LLVM

[RISCV][TTI] opt crash: "Instruction is not an extension" UNREACHABLE for sitofp/uitofp of narrow vector ints to f16 with zvfh 14 days ago

good first issue backend:RISC-V confirmed crash-on-valid llvm:analysis regression:20

llvm/llvm-project

39.1K

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

LLVM

[GlobalISel] i64 sdiv/srem by constant is not expanded to a multiply (sdiv_by_const requires G_SMULH legal) 15 days ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

[AMDGPU][GlobalISel] inreg arguments passed in VGPRs keep a readfirstlane even when only used by VALU 15 days ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

[AMDGPU][GlobalISel][True16] G_ANYEXT 16 -> 32 in VGPRs is selected as a size-mismatched COPY 15 days ago

good first issue backend:AMDGPU llvm:globalisel

llvm/llvm-project

39.1K

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

LLVM

Loading/storing an 8 aligned i128 uses two `movq` instead of a single `movups` 15 days ago

good first issue backend:X86 missed-optimization llvm:SelectionDAG

llvm/llvm-project

39.1K

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

LLVM

[X86] computeKnownBitsForTargetNode - add X86ISD::GF2P8AFFINEQB handling 15 days ago

good first issue backend:X86

llvm/llvm-project

39.1K

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

LLVM

Implement process_vm_readv/writev 16 days ago

good first issue libc

llvm/llvm-project

39.1K

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

LLVM

[InstCombine] Add folds like UCmp(a ±ⁿᵘʷ n, b ±ⁿᵘʷ n) → UCmp(a, b) 16 days ago

good first issue llvm:instcombine missed-optimization

llvm/llvm-project

39.1K

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

LLVM

Implement fixed point mulifx functions in llvm-libc 17 days ago

good first issue libc

llvm/llvm-project

39.1K

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

LLVM

[clang][RISCV] canonicalizeMaskForVLPredicate accepts a wrapping (mod 2^EltBits) step sequence, so lanes of `(splat(b) | <..., 4,5,6,7>) < n` are computed wrong 17 days ago

good first issue backend:RISC-V miscompilation generated by fuzzer

llvm/llvm-project

39.1K

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

LLVM

Clang ICE on assertion "isa<To>(Val) && "cast<Ty>() argument of incompatible type" with templates using -std=c++20 18 days ago

good first issue c++20 clang:frontend crash-on-invalid confirmed generated by fuzzer need-regression-test

llvm/llvm-project

39.1K

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

LLVM

Clang elides the wrong part of the template type in error message. 18 days ago

good first issue clang:frontend

llvm/llvm-project

39.1K

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

LLVM

[X86] update_llc_test_checks.py fails on win32 triples 18 days ago

good first issue llvm-tools bugzilla

llvm/llvm-project

39.1K

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

LLVM

[libc][bazel] Add targets for long double functions/tests to bazel files 18 days ago

good first issue libc bazel

llvm/llvm-project

39.1K

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

LLVM

[libc][bazel] Add targets for Double functions/tests to bazel files 18 days ago

good first issue libc bazel

llvm/llvm-project

39.1K

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

LLVM

Specific structure name can cause shadowing of globally defined lambda, causing "struct::operator()" to be called instead of "lambda::operator()" 18 days ago

good first issue c++ clang:frontend lambda

llvm/llvm-project

39.1K

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

LLVM

[DAG] MatchLoadCombine - match swapped loads 18 days ago

good first issue missed-optimization llvm:SelectionDAG

llvm/llvm-project

39.1K

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

LLVM

JavaScriptWrapImports:false doesn't work with ColumnLimit:0 18 days ago

good first issue clang-format javascript

llvm/llvm-project

39.1K

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

LLVM

`__builtin_bit_cast` of an ext_vector element yields lane 0 at run time, disagreeing with constant evaluation 19 days ago

good first issue clang:frontend miscompilation

llvm/llvm-project

39.1K

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

LLVM

[X86] opt in expandFrexp for vector frexp instead of scalarization by libcall 19 days ago

good first issue backend:X86 missed-optimization floating-point llvm:SelectionDAG

llvm/llvm-project

39.1K

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

LLVM

Complete VTable class name for types 19 days ago

good first issue ClangIR

llvm/llvm-project

39.1K

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

LLVM

Implement `clz` using floating point math if `clz` instruction is not available 20 days ago

good first issue missed-optimization llvm:SelectionDAG

llvm/llvm-project

39.1K

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

LLVM

Failure to recognise unnecessary sext for add+cmp 21 days ago

good first issue llvm:instcombine missed-optimization

llvm/llvm-project

39.1K

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

LLVM

[CIR] Implement missing X86 builtins 22 days ago

good first issue ClangIR

llvm/llvm-project

39.1K

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

LLVM

[clang] warn on operator in macro expansion whose operand doesn't lie entirely within the same macro expansion 22 days ago

good first issue clang:diagnostics

llvm/llvm-project

39.1K

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

LLVM

[AArch64][GlobalISel] IRTranslator aborts on getelementptr with scalable source element type at -O0 22 days ago

good first issue backend:AArch64 llvm:globalisel confirmed crash-on-valid generated by fuzzer

llvm/llvm-project

39.1K

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

LLVM

[DAG] Add MVT/EVT changeVectorElementCount and changeElementCount 22 days ago

good first issue llvm:SelectionDAG

llvm/llvm-project

39.1K

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

LLVM

Missed Optimization: max(max(x, c1) << c2, c3) —> max(x << c2, c3) when c3 >= c1 * 2 ^ c2 23 days ago

good first issue llvm:instcombine missed-optimization

llvm/llvm-project

39.1K

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

LLVM

good first issue clang:diagnostics

llvm/llvm-project

39.1K

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

LLVM

Clang crash on template friend function definition 24 days ago

good first issue clang:codegen crash

llvm/llvm-project

39.1K

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

LLVM

missed fold: (X * 0.0) * constant => X * 0.0 24 days ago

good first issue llvm:instcombine missed-optimization floating-point

llvm/llvm-project

39.1K

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

LLVM

Optimize `decltype(T{})` to `T` in compiler error messages 24 days ago

good first issue quality-of-implementation clang:diagnostics

llvm/llvm-project

39.1K

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

LLVM

[clang-analyzer-security.insecureAPI.strcpy] extend list of unsafe functions 24 days ago

good first issue clang:static analyzer

llvm/llvm-project

39.1K

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

LLVM

[clang][ExtractAPI] Declaration fragments should show types as shown in the source code. 24 days ago

good first issue clang:tooling

llvm/llvm-project

39.1K

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

LLVM

scalbln(x, n), scalbn(x, n), ldexp(x, n) are not folded at the compilation time when (x, n) is constant 24 days ago

good first issue llvm:optimizations missed-optimization floating-point

llvm/llvm-project

39.1K

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

LLVM

Addressing `-Wimplicit-float-conversion` warning might lead to precision loss 25 days ago

enhancement good first issue clang:diagnostics

llvm/llvm-project

39.1K

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

LLVM

[KnownFPClass] Teach KnownFPClass that `asin(non-positive) = non-positive` 25 days ago

good first issue llvm:support floating-point

llvm/llvm-project

39.1K

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

LLVM

Suboptimal instruction sequence when operands are reordered 25 days ago

good first issue llvm:instcombine missed-optimization

llvm/llvm-project

39.1K

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

LLVM

[clang][C++] Bad error recovery when classes are defined inside template aliases 25 days ago

good first issue clang:frontend crash-on-invalid

llvm/llvm-project

39.1K

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

LLVM

getNegatedExpression should handle FP16_TO_FP and FP_TO_FP16 25 days ago

good first issue missed-optimization floating-point llvm:SelectionDAG

llvm/llvm-project

39.1K

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

LLVM

[clang] Add thousands-separator to "cannot allocate array; evaluated array bound [...] exceeds the limit" diagnostic 25 days ago

good first issue clang:frontend clang:diagnostics

llvm/llvm-project

39.1K

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

LLVM

[libc] Modify Exponent decomposition functions to work with emulated Float128 25 days ago

good first issue libc

llvm/llvm-project

39.1K

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

LLVM

[flang] `-ffixed-line-length=<n>` reports "value must be 'none' or a positive integer" for positive values of 2^63 and above 25 days ago

good first issue flang:frontend

llvm/llvm-project

39.1K

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

LLVM

[clang] Assertion `SI.isSigned() == E->getType()->isSignedIntegerOrEnumerationType() && "Invalid evaluation result."' failed. 26 days ago

good first issue clang:frontend crash-on-invalid confirmed generated by fuzzer need-regression-test

llvm/llvm-project

39.1K

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

LLVM

Assertion `CXXInfo->BaseOffsets.count(Base) && "Did not find base!"` failed 26 days ago

good first issue c++ clang:frontend crash-on-invalid confirmed need-regression-test

llvm/llvm-project

39.1K

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

LLVM

[Analyzer][bug][23.1.3] A weird crash on a single line of code: `void crasher(auto&& fn) noexcept(noexcept([_ = fn] {})) {}` 27 days ago

good first issue clang:static analyzer crash-on-valid

llvm/llvm-project

39.1K

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

LLVM

Copy elision when initializing a base class subobject 27 days ago

good first issue clang:frontend need-regression-test

llvm/llvm-project

39.1K

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

LLVM

[libc] printf functions assume %s argument points to a null terminated string even when precision is specified. 27 days ago

good first issue libc

llvm/llvm-project

39.1K

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

LLVM

clang: `std::sort` with `std::ref(comparator)` using recent libstdc++ fails compilation with `exception specification uses itself` 28 days ago

good first issue clang:frontend rejects-valid need-regression-test

llvm/llvm-project

39.1K

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

LLVM

incorrectly permitting definition of class template via injected-class-name 28 days ago

good first issue c++ clang:frontend bugzilla accepts-invalid confirmed need-regression-test

llvm/llvm-project

39.1K

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

LLVM

[X86] opt in expandModf instead of libcall 28 days ago

good first issue backend:X86 missed-optimization floating-point llvm:SelectionDAG

llvm/llvm-project

39.1K

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

LLVM

-fdollar-in-identifiers support lacking behind gcc/tinycc 29 days ago

good first issue clang:frontend extension:gnu

llvm/llvm-project

39.1K

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

LLVM

llvm/llvm-project

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