Sent from my iPhone
On Mar 1, 2010, at 8:23 PM, "astrange at ithinksw dot com" > wrote:
Source:
#include
struct a1 { char l[16];};
Are sure that struct has 128 bit alignment because I think it only has
8bit alignment.
struct a2 { __m128i l; };
void f1(struct a1 *a, struct a1 *b)
Source:
#include
struct a1 { char l[16];};
struct a2 { __m128i l; };
void f1(struct a1 *a, struct a1 *b)
{
*a = *b;
}
void f2(struct a2 *a, struct a2 *b)
{
*a = *b;
}
> /usr/local/gcc45/bin/gcc -O3 -fomit-frame-pointer -S copy_gcc.c
_f1:
movq(%rsi), %rax
movq%r
