So I tried to build my project in release for the first time in a long while. It takes like 25x longer to compile and finally the compiler crashes. It seems to go away if I disable the optimizer.
I get:

tym = x1d
Internal error: backend\cgxmm.c 547

Does anyone have a clue what might trigger this?
I'm asking because my project has grown a bit and I don't really have any good way of isolating this.

I'm using dmd 2.068.1 and msvc x64 target.

On Friday, 18 September 2015 at 22:54:43 UTC, Random D user wrote:
> So I tried to build my project in release for the first time in a long while. It takes like 25x longer to compile and finally the compiler crashes. It seems to go away if I disable the optimizer.
> I get:
>
> tym = x1d
> Internal error: backend\cgxmm.c 547
>
> Does anyone have a clue what might trigger this?
> I'm asking because my project has grown a bit and I don't really have any good way of isolating this.
>
> I'm using dmd 2.068.1 and msvc x64 target.

As a backend ICE is is very important that you report this.

To workaround, try disabling inlining or -O selectively.

On Friday, 18 September 2015 at 22:54:43 UTC, Random D user wrote:
> So I tried to build my project in release for the first time in a long while. It takes like 25x longer to compile and finally the compiler crashes. It seems to go away if I disable the optimizer.
> I get:
>
> tym = x1d
> Internal error: backend\cgxmm.c 547
>
> Does anyone have a clue what might trigger this?
> I'm asking because my project has grown a bit and I don't really have any good way of isolating this.
>
> I'm using dmd 2.068.1 and msvc x64 target.

Dustmite is really great for reducing this sort of problem

On Saturday, 19 September 2015 at 07:25:58 UTC, ponce wrote:
> On Friday, 18 September 2015 at 22:54:43 UTC, Random D user wrote:
>> So I tried to build my project in release for the first time in a long while. It takes like 25x longer to compile and finally the compiler crashes. It seems to go away if I disable the optimizer.
>> I get:
>>
>> tym = x1d
>> Internal error: backend\cgxmm.c 547
>>
>> Does anyone have a clue what might trigger this?
>> I'm asking because my project has grown a bit and I don't really have any good way of isolating this.
>>
>> I'm using dmd 2.068.1 and msvc x64 target.
>
> As a backend ICE is is very important that you report this.
>
> To workaround, try disabling inlining or -O selectively.

Thanks for the tips. I guess I should register an account (which I hate (already too many one off accounts)), since I already have like 3 bugs gathering dust in the corner.
Just hit another one (this time in debug):

Assertion failure: 'type->ty != Tstruct || ((TypeStruct *)type)->sym == this' on line 957 in file 'struct.c'

Ugh...
It really seems like D starts to break down once your code grows beyond toy program size. A bit frustrating...

On Saturday, 19 September 2015 at 21:48:25 UTC, Random D user wrote:
> Assertion failure: 'type->ty != Tstruct || ((TypeStruct *)type)->sym == this' on line 957 in file 'struct.c'

Ok managed to reduce this one to my own copy paste bug. This is invalid code, but compiler shouldn't crash...

I'm posting this here for reference (I will file a bug later):

class Gui
{
    enum MouseButton { Left = 0, Right };

private:

    struct ClickPair
    {
	    MouseButton button = MouseButton.Left;
    };

    struct ClickPair  // Second struct ClickPair with the enum above --> Assertion failure: 'type->ty != Tstruct || ((TypeStruct*)type)->sym == this' on line 957 in file 'struct.c'
    {
	    MouseButton button = MouseButton.Left;
    };
};

On Sunday 20 September 2015 00:09, Random D user wrote:

> class Gui
> {
>      enum MouseButton { Left = 0, Right };
> 
> private:
> 
>      struct ClickPair
>      {
> 	    MouseButton button = MouseButton.Left;
>      };
> 
>      struct ClickPair  // Second struct ClickPair with the enum
> above --> Assertion failure: 'type->ty != Tstruct ||
> ((TypeStruct*)type)->sym == this' on line 957 in file 'struct.c'
>      {
> 	    MouseButton button = MouseButton.Left;
>      };
> };

Off topic: You don't need semicolons after struct/class declarations in D.

On Friday, 18 September 2015 at 22:54:43 UTC, Random D user wrote:
> I get:
>
> tym = x1d
> Internal error: backend\cgxmm.c 547
>
> Does anyone have a clue what might trigger this?

https://issues.dlang.org/show_bug.cgi?id=7951
https://issues.dlang.org/show_bug.cgi?id=12377

On Saturday, 19 September 2015 at 21:48:25 UTC, Random D user wrote:
> Assertion failure: 'type->ty != Tstruct || ((TypeStruct *)type)->sym == this' on line 957 in file 'struct.c'
>
> Ugh...
> It really seems like D starts to break down once your code grows beyond toy program size. A bit frustrating...

https://issues.dlang.org/show_bug.cgi?id=15092
https://issues.dlang.org/show_bug.cgi?id=11260