Skip to content

JIT: Assertion failed 'isContainable || supportsRegOptional' during 'Generate code' #111613

@jakobbotsch

Description

@jakobbotsch
// Generated by Fuzzlyn v2.4 on 2025-01-19 15:15:14
// Run on X64 Windows
// Seed: 9992515068480039116-vectort,vector128,vector256,x86aes,x86avx,x86avx2,x86avx512bw,x86avx512bwvl,x86avx512cd,x86avx512cdvl,x86avx512dq,x86avx512dqvl,x86avx512f,x86avx512fvl,x86avx512fx64,x86bmi1,x86bmi1x64,x86bmi2,x86bmi2x64,x86fma,x86lzcnt,x86lzcntx64,x86pclmulqdq,x86popcnt,x86popcntx64,x86sse,x86ssex64,x86sse2,x86sse2x64,x86sse3,x86sse41,x86sse41x64,x86sse42,x86sse42x64,x86ssse3,x86x86base
// Reduced from 86.1 KiB to 0.3 KiB in 00:02:16
// Hits JIT assert in Release:
// Assertion failed 'isContainable || supportsRegOptional' in 'Program:Main(Fuzzlyn.ExecutionServer.IRuntime)' during 'Generate code' (IL size 30; hash 0xade6b36b; FullOpts)
// 
//     File: D:\a\_work\1\s\src\coreclr\jit\hwintrinsiccodegenxarch.cpp Line: 61
// 
using System;
using System.Numerics;
using System.Runtime.Intrinsics;
using System.Runtime.Intrinsics.X86;

public class Program
{
    public static void Main()
    {
        var vr3 = Vector256.Create<long>(1);
        Vector128<float> vr4 = Avx512DQ.VL.ConvertToVector128Single(vr3);
        System.Console.WriteLine(vr4.AsUInt32());
    }
}

Bisected to #110736, cc @saucecontrol

Metadata

Metadata

Labels

area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIin-prThere is an active PR which will close this issue when it is merged

Type

No type

Projects

No projects

Milestone

Relationships

None yet

Development

No branches or pull requests

Issue actions