blob: ec163a9bc51e9ffd51a9052dc7856d891eb367bf (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
/* { dg-do run } */
/* { dg-options "-std=gnu99 -msse2 -mpreferred-stack-boundary=4" } */
/* { dg-require-effective-target sse2 } */
#include "sse2-check.h"
#include <emmintrin.h>
#ifdef __x86_64__
# define PUSH "pushq %rsi"
# define POP "popq %rsi"
#else
# define PUSH "pushl %esi"
# define POP "popl %esi"
#endif
__m128i __attribute__ ((__noinline__))
vector_using_function ()
{
volatile __m128i vx; /* We want to force a vector-aligned store into the stack. */
vx = _mm_xor_si128 (vx, vx);
return vx;
}
int __attribute__ ((__noinline__, __force_align_arg_pointer__))
self_aligning_function (int x, int y)
{
__m128i ignored = vector_using_function ();
return (x + y);
}
int g_1 = 20;
int g_2 = 22;
static void
sse2_test (void)
{
int result;
asm (PUSH); /* Misalign runtime stack. */
result = self_aligning_function (g_1, g_2);
if (result != 42)
abort ();
asm (POP);
}
|
