view tests/mini/asm1_1.d @ 1346:6f4154b318ef

Remove an old workaround that was kept around for ABI-compatibility on x86-64 between different LLVM versions. This means LLVM r67588 is required if you want to compile for x86-64, otherwise the backend will assert when you try to return e.g. struct { int i; char c; } from a function. (In particular, this is no longer compatible with LLVM 2.5) It also means that any code returning small structs on x86-64 will probably need to be recompiled in order to be linkable to code compiled with this change.
author Frits van Bommel <fvbommel wxs.nl>
date Tue, 12 May 2009 15:50:48 +0200
parents 08f87d8cd101
children
line wrap: on
line source

module tangotests.asm1_1;

extern(C) int printf(char*, ...);

int main()
{
    int i = 12;
    int* ip = &i;
    printf("%d\n", i);
    version (D_InlineAsm_X86)
    {
        asm
        {
            mov ECX, ip;
            mov EAX, [ECX];
            add EAX, 8;
            mul EAX, EAX;
            mov [ECX], EAX;
        }
    }
    else version (D_InlineAsm_X86_64)
    {
        asm
        { 
            movq RCX, ip;
            mov EAX, [RCX];
            add EAX, 8;
            imul EAX, EAX;
            mov [RCX], EAX;
        }
    }
    printf("%d\n", i);
    assert(i == 400);
    return 0;
}