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

-- 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?

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

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

I guess it's global sharing. not tls.

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

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