[Issue 24436] New: a array be overwritten when other array be written

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=24436

          Issue ID: 24436
           Summary: a array be overwritten when other array be written
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: mixedavocado+dlang at gmail.com

exsample code (DMD64 v2.107.1)(windows 11 Home 22H2)

import std.stdio, core.memory;

void main()
{
        int[][] array1, array2;
        array1 = new int[][](2,2);
        foreach (row; 0 .. 2)
        {
                foreach (col; 0 .. 2)
                {
                        array1[row][col] = col+row*2;
                }
        }
        GC.collect();
        array2 = new int[][](2,2);
        foreach (row; 0 .. 2)
        {
                foreach (col; 0 .. 2)
                {
                        array2[row][col] = 100+col+row*2;
                }
        }
        writefln("%(%s,%)", array1);
        writefln("%(%s,%)", array2);
}

expected output

[0,1],[2,3]
[100,101],[102,103]

actual output

[102,103],[2,3]
[100,101],[102,103]

--