LXR qemu/tests/tcg/i386/test-i386-ssse3.c

   1/* See if various MMX/SSE SSSE3 instructions give expected results */
   2#include <stdio.h>
   3#include <string.h>
   4#include <stdint.h>
   5
   6int main(int argc, char *argv[]) {
   7        char hello[16];
   8        const char ehlo[8] = "EHLO    ";
   9        uint64_t mask = 0x8080800302020001;
  10
  11        uint64_t a = 0x0000000000090007;
  12        uint64_t b = 0x0000000000000000;
  13        uint32_t c;
  14        uint16_t d;
  15
  16        const char e[16] = "LLOaaaaaaaaaaaaa";
  17        const char f[16] = "aaaaaaaaaaaaaaHE";
  18
  19        /* pshufb mm1/xmm1, mm2/xmm2 */
  20        asm volatile ("movq    (%0), %%mm0" : : "r" (ehlo) : "mm0", "mm1");
  21        asm volatile ("movq    %0, %%mm1" : : "m" (mask));
  22        asm volatile ("pshufb  %mm1, %mm0");
  23        asm volatile ("movq    %%mm0, %0" : "=m" (hello));
  24        printf("%s\n", hello);
  25
  26        /* pshufb mm1/xmm1, m64/m128 */
  27        asm volatile ("movq    (%0), %%mm0" : : "r" (ehlo) : "mm0");
  28        asm volatile ("pshufb  %0, %%mm0" : : "m" (mask));
  29        asm volatile ("movq    %%mm0, %0" : "=m" (hello));
  30        printf("%s\n", hello);
  31
  32        /* psubsw mm1/xmm1, m64/m128 */
  33        asm volatile ("movq    %0, %%mm0" : : "r" (a) : "mm0");
  34        asm volatile ("phsubsw %0, %%mm0" : : "m" (b));
  35        asm volatile ("movq    %%mm0, %0" : "=m" (a));
  36        printf("%i - %i = %i\n", 9, 7, -(int16_t) a);
  37
  38        /* palignr mm1/xmm1, m64/m128, imm8 */
  39        asm volatile ("movdqa  (%0), %%xmm0" : : "r" (e) : "xmm0");
  40        asm volatile ("palignr $14, (%0), %%xmm0" : : "r" (f));
  41        asm volatile ("movdqa  %%xmm0, (%0)" : : "r" (hello));
  42        printf("%5.5s\n", hello);
  43
  44#if 1 /* SSE4 */
  45        /* popcnt r64, r/m64 */
  46        asm volatile ("movq    $0x8421000010009c63, %%rax" : : : "rax");
  47        asm volatile ("popcnt  %%ax, %%dx" : : : "dx");
  48        asm volatile ("popcnt  %%eax, %%ecx" : : : "ecx");
  49        asm volatile ("popcnt  %rax, %rax");
  50        asm volatile ("movq    %%rax, %0" : "=m" (a));
  51        asm volatile ("movl    %%ecx, %0" : "=m" (c));
  52        asm volatile ("movw    %%dx, %0" : "=m" (d));
  53        printf("%i = %i\n%i = %i = %i\n", 13, (int) a, 9, c, d + 1);
  54#endif
  55
  56        return 0;
  57}
  58