https://issues.dlang.org/show_bug.cgi?id=14872

--- Comment #1 from Daniel <wyrlon@gmx.net> ---
I tested that it works with ldc2 and saw some interesting things when disassembling at asm.dlang.org

dmd -m32
lea    %cs:0x28,%eax
mov    %eax,-0x8(%ebp)
lea    %cs:0x30,%eax
mov    %eax,-0x4(%ebp)

dmd -m64
cs
mov    %rax,%rax
mov    %rax,-0x10(%rbp)
cs
mov    %rax,%rax
mov    %rax,-0x8(%rbp)

ldc2 -m64
leaq    .L_Dmain_lbl1, %rax
movq    %rax, -72(%rbp)
leaq    .L_Dmain_lbl2, %rax
movq    %rax, -80(%rbp)

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https://issues.dlang.org/show_bug.cgi?id=14872

Daniel <wyrlon@gmx.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[2.068.0-rc1] Label address |[2.068.2] Label address in
                   |in asm [x86-64]             |asm [x86-64]

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https://issues.dlang.org/show_bug.cgi?id=14872

Vladimir Panteleev <dlang-bugzilla@thecybershadow.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code
                 OS|Windows                     |All

--- Comment #2 from Vladimir Panteleev <dlang-bugzilla@thecybershadow.net> ---
(In reply to Daniel from comment #0)
> 32bit x86 asm works fine, but I can't get 64bit working.

I think that has something to do with Intel x64 being position-independent, meaning that "lea RAX, lbl1" is not going to do what you want. It looks like in case of DMD, it's generating nonsense code (mov eax, eax), but it could still use the offset relative to some base. In any case, it certainly won't be the actual in-address memory of the code at that label (so that you can "jmp" to it).

So, your example is a bit nonsensical, but DMD should still not be emitting garbage code, and either generate an error or use some other kind of offset (so that it's at least possible to use the offset in calculations to produce something useful).

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https://issues.dlang.org/show_bug.cgi?id=14872

Basile-z <b2.temp@gmx.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |iasm
                 CC|                            |b2.temp@gmx.com

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https://issues.dlang.org/show_bug.cgi?id=14872

Basile-z <b2.temp@gmx.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|b2.temp@gmx.com             |

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https://issues.dlang.org/show_bug.cgi?id=14872

Dlang Bot <dlang-bot@dlang.rocks> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |pull

--- Comment #3 from Dlang Bot <dlang-bot@dlang.rocks> ---
@WalterBright created dlang/dmd pull request #11631 "fix Issue 14872 - [2.068.2] Label address in asm [x86-64]" fixing this issue:

- fix Issue 14872 - [2.068.2] Label address in asm [x86-64]

https://github.com/dlang/dmd/pull/11631

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https://issues.dlang.org/show_bug.cgi?id=14872

Dlang Bot <dlang-bot@dlang.rocks> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #4 from Dlang Bot <dlang-bot@dlang.rocks> ---
dlang/dmd pull request #11631 "fix Issue 14872 - [2.068.2] Label address in asm [x86-64]" was merged into master:

- b8a8d6f183342bb5bd9944595218661efcb22b08 by Walter Bright:
  fix Issue 14872 - [2.068.2] Label address in asm [x86-64]

https://github.com/dlang/dmd/pull/11631

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