[JitOptRepeat] Assertion failed 'limit->OperGet() == GT_ARR_LENGTH' during 'Optimize Valnum CSEs' #74785
Description
// Found by Antigen
using System;
using System.Collections.Generic;
using System.Runtime.CompilerServices;
public class TestClass
{
public struct S1
{
public byte byte_0;
}
public struct S2
{
}
static decimal s_decimal_7 = 5.0625m;
static double s_double_8 = 1;
static uint s_uint_16 = 5;
static S1 s_s1_18 = new S1();
static S2 s_s2_19 = new S2();
bool bool_20 = true;
uint uint_32 = 5;
ulong ulong_33 = 0;
S1 s1_34 = new S1();
S2 s2_35 = new S2();
static int s_loopInvariant = 2;
public decimal Method9(ref S2 p_s2_262)
{
unchecked
{
return 15%4;
}
}
public S2 Method34(S1 p_s1_892, ref S2 p_s2_893, ref S2 p_s2_894, ref byte p_byte_895, out S1 p_s1_896, S2 p_s2_897)
{
unchecked
{
for (int __loopvar2 = 15-4; 15!=4;)
{
do
{
for (;;)
{
s_decimal_7 *= Method9(ref s_s2_19);
}
}
while (15!=4);
}
return s_s2_19;
}
}
public void Method0()
{
unchecked
{
S2 s2_2627 = new S2();
s_s2_19 = Method34(s_s1_18, ref s2_2627, ref s2_35, ref s1_34.byte_0, out s_s1_18, s2_35);
return;
}
}
public static void Main(string[] args)
{
new TestClass().Method0();
}
}
/*
Environment:
set COMPlus_AltJitName=clrjit_unix_x64_x64.dll
set COMPlus_AltJit=GetContainingSectionIndex
set COMPlus_JitOptRepeat=*
Unhandled exception.
Assert failure(PID 68200 [0x00010a68], Thread: 13360 [0x3430]): Assertion failed 'limit->OperGet() == GT_ARR_LENGTH' in 'System.Reflection.PortableExecutable.PEHeaders:GetContainingSectionIndex(int):int:this' during 'Optimize Valnum CSEs' (IL size 93; hash 0x7476b29f; FullOpts)
File: D:\git\dotnet-runtime\src\coreclr\jit\compiler.hpp Line: 3485
Image: d:\git\dotnet-runtime\artifacts\tests\coreclr\windows.x64.Checked\tests\Core_Root\CoreRun.exe
*/category:correctness
theme:value-numbering
skill-level:intermediate
cost:small
impact:small