view tests/mini/asm1.d @ 978:6a32d2e18175

Fix a latent bug in the asm code. I think that technically, using "*m0" instead of "*0" allows LLVM to pick between using the same memory as output 0 and using a new memory location. (So far I haven't been able to construct a testcase that actually breaks because of this, though)
author Frits van Bommel <fvbommel wxs.nl>
date Wed, 18 Feb 2009 03:38:12 +0100
parents a58784e0f035
children 4c524d80e6e1
line wrap: on
line source

module asm1;

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

void main()
{
    version(LLVM_InlineAsm_X86)
    {
	int x;
	asm
	{
	    mov EAX, 42;
	    mov x, EAX;
	}
	printf("x = %d\n", x);
    }
    else version(LLVM_InlineAsm_X86_64)
    {
        long x;
        asm
        {
            movq RAX, 42L;
            movq x, RAX;
        }
        printf("x = %ld\n", x);
    }
    else
    {
        static assert(0, "no inline asm for this platform yet");
    }
}