• ryuukk_ (24/24) Aug 29 2022 The following code compiles and run fine with LDC, but with DMD
• ryuukk_ (4/4) Aug 29 2022 I forgot to add: this is on Windows, the problem doesn't exist
• zjh (2/3) Aug 29 2022 I guess it's global sharing. not `tls`.
• wjoe (3/4) Aug 30 2022 This flag adds symbolic debug info. But I'm confident you knew
• ryuukk_ (2/6) Aug 30 2022 You didn't understand the question
• ryuukk_ (3/3) Aug 30 2022 Problem fixed, i had to copy bunch of other code from druntime

ryuukk_ <ryuukk.dev gmail.com> writes:

The following code compiles and run fine with LDC, but with DMD 
it compiles and then default at runtime


```D
-- app.d
enum Test {A, B, C}

Test test = Test.A;

extern(C) void main()
{
     switch(test)
     {
         default:
         break;
     }
}

```

```
-- object.d
// empty for now
```


`dmd -m64 app.d && ./app.exe` compiles, running it segfault ⛔

`ldc2 -m64 app.d && ./app.exe` compiles, running it works ✅

Now the interesting part


`dmd -g -m64 app.d && ./app.exe` compiles, running it works! ✅

What `-g` does that makes this code compile and work with DMD?

ryuukk_ <ryuukk.dev gmail.com> writes:

I forgot to add: this is on Windows, the problem doesn't exist 
with linux

I reported a bug here: 
https://issues.dlang.org/show_bug.cgi?id=23310

zjh <fqbqrr 163.com> writes:

On Monday, 29 August 2022 at 21:46:48 UTC, ryuukk_ wrote:

 What `-g` does that makes this code compile and work with DMD?

I guess it's global sharing. not `tls`.

wjoe <invalid example.com> writes:

On Monday, 29 August 2022 at 21:46:48 UTC, ryuukk_ wrote:
 What `-g` does that makes this code compile and work with DMD?

This flag adds symbolic debug info. But I'm confident you knew 
that already.

ryuukk_ <ryuukk.dev gmail.com> writes:

On Tuesday, 30 August 2022 at 11:24:21 UTC, wjoe wrote:
 On Monday, 29 August 2022 at 21:46:48 UTC, ryuukk_ wrote:
 What `-g` does that makes this code compile and work with DMD?

 This flag adds symbolic debug info. But I'm confident you knew 
 that already.

You didn't understand the question

ryuukk_ <ryuukk.dev gmail.com> writes:

Problem fixed, i had to copy bunch of other code from druntime

Here is a working object.d: 
https://gist.github.com/ryuukk/53c133f29da5a8326c359a6bb1063207