| /* { dg-do run } */ |
| /* { dg-require-effective-target ia32 } */ |
| /* { dg-require-effective-target sse2 } */ |
| /* { dg-options "-std=gnu99 -msse2 -mstackrealign -mpreferred-stack-boundary=4" } */ |
| |
| #include "sse2-check.h" |
| |
| #include <emmintrin.h> |
| |
| __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__)) |
| 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 __attribute__ ((__optimize__ ("-fno-omit-frame-pointer"))) |
| sse2_test (void) |
| { |
| int result; |
| register int reg asm ("ecx"); |
| asm ("pushl\t%0": : "r" (reg) : "memory"); /* Disalign runtime stack. */ |
| result = self_aligning_function (g_1, g_2); |
| if (result != 42) |
| abort (); |
| asm ("popl\t%0" : "=r" (reg)); |
| } |
