Hi,

This code works well with the unoptimized compilation with DMD.

import std.array;

synchronized class Obj{
  private int[] arr;
  void trigger(){ arr.length += 1; }
}

void main(){
  auto k = new shared Obj;
  k.trigger;
}

And when I use the -O option, it shows the following error in the trigger() method:

core.exception.InvalidMemoryOperationError@src\core\exception.d(696): Invalid memory operation

Why? o.O

worksforme with -O, and with -O -inline.

On Thursday, 8 June 2017 at 10:48:41 UTC, ketmar wrote:
> worksforme with -O, and with -O -inline.

I forgot to mention, that I'm generating win32 output.
DMD32 D Compiler v2.074.0

realhet wrote:

> On Thursday, 8 June 2017 at 10:48:41 UTC, ketmar wrote:
>> worksforme with -O, and with -O -inline.
>
> I forgot to mention, that I'm generating win32 output.
> DMD32 D Compiler v2.074.0

mine: GNU/Linux, 32 bit, dmd git HEAD.

I've managed to narrow the problem even more:

//win32 dmd -O

class Obj{
  synchronized void trigger(){ new ubyte[1]; }
}

void main(){
  auto k = new shared Obj;
  k.trigger;
}

This time I got a more sophisticated error message:

object.Error@(0): Access Violation
----------------
0x7272456D in SymInitialize
0x00402667
0x00402A97
0x00402998
0x004022A0
0x76F13744 in BaseThreadInitThunk
0x773B9E54 in RtlSetCurrentTransaction
0x773B9E1F in RtlSetCurrentTransaction

On Thursday, 8 June 2017 at 11:41:40 UTC, realhet wrote:
> I've managed to narrow the problem even more:
>
> //win32 dmd -O
>
> class Obj{
>   synchronized void trigger(){ new ubyte[1]; }
> }
>
> void main(){
>   auto k = new shared Obj;
>   k.trigger;
> }
>
> This time I got a more sophisticated error message:
>
> object.Error@(0): Access Violation
> ----------------
> 0x7272456D in SymInitialize
> 0x00402667
> 0x00402A97
> 0x00402998
> 0x004022A0
> 0x76F13744 in BaseThreadInitThunk
> 0x773B9E54 in RtlSetCurrentTransaction
> 0x773B9E1F in RtlSetCurrentTransaction

I can reproduce this under win32, and it breaks somewhere between 2.068.2 and 2.069.0.

The move instructive message with "dmd -O -g":

object.Error@(0): Access Violation
----------------
0x00000065
0x00402C33 in _d_newarrayU
0x004022EB in _d_newarrayT
0x00402A7F in scope void rt.dmain2._d_run_main(int, char**, extern (C) int function(char[][])*).runAll()
0x00402980 in _d_run_main
0x00402288 in main at C:\a.d(8)
0x757F336A in BaseThreadInitThunk
0x77409902 in RtlInitializeExceptionChain
0x774098D5 in RtlInitializeExceptionChain

Perhaps a regression should be filed, or searched for, at issues.dlang.org.  I can do it, but not right now, and would be glad if someone beats me to it.

Ivan Kazmenko.

On Thursday, 8 June 2017 at 15:35:06 UTC, Ivan Kazmenko wrote:
> Perhaps a regression should be filed, or searched for, at issues.dlang.org.  I can do it, but not right now, and would be glad if someone beats me to it.

Reported: https://issues.dlang.org/show_bug.cgi?id=17481

On Thursday, 8 June 2017 at 17:39:41 UTC, Ivan Kazmenko wrote:
> Reported: https://issues.dlang.org/show_bug.cgi?id=17481

Thank You!