/*      $NetBSD: alloca.S,v 1.2 2014/05/22 15:01:56 uebayasi Exp $      */

#include <machine/asm.h>

#if defined(LIBC_SCCS)
        RCSID("$NetBSD: alloca.S,v 1.2 2014/05/22 15:01:56 uebayasi Exp $")
#endif

ENTRY(alloca)
        popq    %rdx
        movq    %rsp,%rcx
        addq    $15,%rdi        /*  round up to 16 bytes */
        andq    $~15,%rdi
        subq    %rdi,%rsp
        movq    %rsp,%rax
        jmp     *%rdx
END(alloca)