Struct alignment is not correct

[yazd]

Using ldc-0.11 on Linux-64bit little endian system, the following code:

import std.stdio;

align(1) struct Foo {
align(1):
  ushort b;
  uint c;
}

void main() {
  ubyte[6] arr = [0x01, 0x01, 0x01, 0x00, 0x00, 0x01];
  Foo f = cast(Foo) arr;
  writeln(f); // prints Foo(257, 1841692928)
  writeln(f.sizeof); // prints 6 correctly
}

Using dmd2.063.2, the same code prints correctly Foo(257, 16777217) and 6

[redstar]

I can reproduce it. Thanks for the report.

[redstar]

From a first look at the IR, the struct Foo is translated to:

%ldc_github_430.Foo = type { i16, i32 }

but in this case it should be

%ldc_github_430.Foo = type <{ i16, i32 }>

because struct Foo is a packed structure.

[yazd]

Exactly. Thank you for looking into this.

[redstar]

The bug should be fixed with my latest commit. I also added a new test case.