While inspecting assembly code generated by DMD I found this
weird bit of assembly:

0000000000000000 <_Dmain>:
    0:	55                   	push   rbp
    1:	48 8b ec             	mov    rbp,rsp
    4:	48 83 ec 10          	sub    rsp,0x10
    8:	c7 45 f8 05 00 00 00 	mov    DWORD PTR [rbp-0x8],0x5
    f:	c7 45 f8 06 00 00 00 	mov    DWORD PTR [rbp-0x8],0x6
   16:	48 89 ef             	mov    rdi,rbp
   19:	e8 00 00 00 00       	call   1e <_Dmain+0x1e>
   1e:	31 c0                	xor    eax,eax
   20:	c9                   	leave
   21:	c3                   	ret
   22:	66 0f 1f 44 00 00    	nop    WORD PTR [rax+rax*1+0x0]

It seems to call/jump to the operation right after it. Why does
it do that?

Code:

void main() {
	int x = 5;
	void innerFunc() {
		import std.stdio;
		writeln(x);
	}
	x = 6;
	innerFunc();
}

Also I don't really get where it's supposed to call innerFunc. It
seems it's never mentioned inside the generated main function.

On 05/20/14 21:46, Jeroen Bollen via Digitalmars-d wrote:
> While inspecting assembly code generated by DMD I found this weird bit of assembly:

>    19:    e8 00 00 00 00           call   1e <_Dmain+0x1e>
>    1e:    31 c0                    xor    eax,eax
>    20:    c9                       leave
>    21:    c3                       ret
>    22:    66 0f 1f 44 00 00        nop    WORD PTR [rax+rax*1+0x0]
> 
> It seems to call/jump to the operation right after it. Why does it do that?

http://forum.dlang.org/post/mailman.427.1364814654.4724.digitalmars-d-learn@puremagic.com

artur

On Tuesday, 20 May 2014 at 19:55:17 UTC, Artur Skawina via
Digitalmars-d wrote:
> On 05/20/14 21:46, Jeroen Bollen via Digitalmars-d wrote:
>> While inspecting assembly code generated by DMD I found this
>> weird bit of assembly:
>
>>    19:    e8 00 00 00 00           call   1e <_Dmain+0x1e>
>>    1e:    31 c0                    xor    eax,eax
>>    20:    c9                       leave
>>    21:    c3                       ret
>>    22:    66 0f 1f 44 00 00        nop    WORD PTR [rax+rax*1+0x0]
>> 
>> It seems to call/jump to the operation right after it. Why does
>> it do that?
>
> http://forum.dlang.org/post/mailman.427.1364814654.4724.digitalmars-d-learn@puremagic.com
>
> artur
Thanks :P